Amino sugar formation in plants. One of its common uses is for osteoarthritis.

Amino sugar formation in plants Microbes utilize This review focuses on processes in which major metabolites, in particular sugars and amino acids, are secreted from plant cells. Free amino sugars, such as glucosamine and galactosamine, are commonly found in natural waters, although at lower concentrations than DFAA. com / journal / plants Plants 2020 No matter what the protective groups on the sugar were, the desired products could be obtained in high yield The strategy for the formation of glycoside of 2-amino sugars (A) Glycosylation of 2-amino sugars with a neighboring participating group at C(2) position, (B) Glycosylation of 2-amino sugars without a neighboring participating group at C(2) position. Total amino sugar (TAS) content was calculated as the sum of GlcN, GalN, and MurN (Wang et al. Apr 15, 2024 · Herein, two widely accepted sets of bio-markers, namely, amino sugars and lignin phenols, were employed to compare the distribution of plant- and microbe-derived C as well as their contributions to SOC in maize monoculture and intercropping systems, based on a field experiment established in 2013; meanwhile, the associations of soil physicochemical Nov 3, 2012 · Acrylamide forms during cooking and processing predominately from the reaction of free asparagine and reducing sugars in the Maillard reaction. As in animals and microbes, several amino acids play key roles in plants as precursor compounds for the synthesis of various classes of secondary metabolites (e. In general, larger amounts of amino sugars were formed at a higher rate 30 with increasing plant residue quality. The exposure of plants to subzero temperature leads to ice formation in plant tissues . The results showed Amino sugar content and microbial C:N ratio showed an increasing trend along the carbon input gradient (Table 2 and Fig. 5 b), showing the critical role of plant residues and microbial necromass in SOC formation. It helps rebuild cartilage and is used in veterinary medicine. (2004) and Zelles (1988) described a mobile 30 with increasing plant residue quality. mdpi. , 2017; Chen et al. 2013, 57, 814–821. Glucosamine and muramic acid are amino sugars commonly used as biomarkers of fungal and bacterial necromass, respectively. Residue derived AS increased exponentially and reached a maximum within days. 1). 6 a and b). Jun 1, 2012 · Furthermore, both plants and microbes are capable of taking up both amino acids and amino sugars directly (Herman et al. 1) and between 2 and 42% to amino sugars in plant material (Table 2 and Fig. It is also referred to technically as 2-amino-2-deoxysugar. Their levels in soil, can provide insights into the microbial contribution to soil organic matter (SOM) and might serve as an indicator of SOM quality. 2c), indicating the important involvement of these metabolic pathways in the process of TDZ-regulated adventitious bud formation from the in vitro leaves. This can also form chitin in exoskeletons of insects as well as cell walls of plants. The amount of nucleotide sugars is usually found to be 10–25 % of the pool of soluble nucleotides extracted Definition noun, plural: amino sugars A sugar molecule the nonglycosidic hydroxyl (–OH) group is replaced by an amine (-NH 2) group Supplement An amino sugar is a sugar molecule wherein the hydroxyl group is replaced by an amine group. Jørgensen, in Encyclopedia of Inland Waters, 2009 Uptake of Other Amino Compounds. Bacterial utilization of amino sugars has not been widely studied, but most bacteria possess enzymes for uptake of at least This review commemorates the 50th anniversary of the Nobel Prize in Chemistry awarded to Luis F. Plant SuSy enzymes have been shown to be The amino sugar d-forosamine 4-N,N,-(dimethylamino)-2,3,4,6-tetradeoxy-α-d-erythro-hexopyranose 9 is found in the antibiotics spiramycin and spinosyn, the latter which is also an environmentally benign insectiside. Bacterial muramic acid showed the most variation in the recovery of individual C positions during 10 days, which reflects its intensive transformation by glycolysis, pentose Apr 29, 2024 · Plant lignin phenols and amino sugars are typically used to quantify the retention of plant debris and microbial necromass in soils (Angst et al. 3390 / plants9050560 www. , 2021). Formation kinetics was dependant of AS type, residue quality and soil tillage history. In this study, two agricultural Luvisols under distinct tillage managements were amended with Nov 22, 2023 · Galactosamine Alpha-D-glucosamine Sialic acid (beta-N-Acetylneuraminic Acid. The bacterial community seemed to play a more prominent role for early stage incorporation of Sep 1, 2018 · The present study aimed to reveal the steps in the formation of fungal and bacterial amino sugars (AS) from glucose. Nov 15, 2024 · The amount of lignin phenols and amino sugars increased with SOC content (Fig. However, the differences in their effects on soil microbial communities Boeckx, P. The aims of this article are four-fold. , 2013) and was used to assess microbial-mediated residual C retention in the soil. phenylpropanoids, some alkaloids, and glucosinolates). In general, larger amounts of amino sugars were formed at a higher rate with increasing plant residue quality. Amino acid transport has been well characterized in the yeast Saccharomyces cerevisiae, and Mar 1, 2023 · Nevertheless, the molecular structure of SMN is complex and variable, which is difficult to quantify directly. Compared with the initial value, the content of amino sugar increased exponentially to 21–45% and approached steady-state equilibrium after 12 years of maize straw mulching, indicating the When both amino sugar and neutral sugar contents were included, the NMDS showed the separation of plants from all other microbial groups (Fig. 001, Fig. , 2021; Glaser et al. However, the formation dynamics of amino sugar is not well understood. (2007b Soil organic matter (SOM) retains more terrestrial carbon (C) than do plants and the atmosphere combined and is therefore a major focus of Earth system studies (Lehmann and Kleber, 2015). , 2004;Riemann andAzam, 2002, Roberts and Jones, 2012 Jun 15, 2005 · The present study aimed to reveal the steps in the formation of fungal and bacterial amino sugars (AS) from glucose. 2013), the changes of AS with incubation time were also claimed by Liang et al. because plants do not synthesize amino sugars in significant amounts (for reviews, see Amelung, 2001; A formation of d-amino acids is also possible after cell death through biotic or abiotic racemization Feb 5, 2007 · Abstract. e. Here we present novel findings on amino acid research and propose a picture, as up-to-date as possible, of the current knowledge on this fascinating aspect of plant physiology. However, only 4% of the total amino sugar concentration in bacterial May 5, 2015 · Microbial Amino Sugars. 1 to 9. , 2015; Kallenbach et al. Biochem. A reverse-phase high-performance liquid chromatography method was improved for the simultaneous determination of muramic acid, mannosamine, glucosamine and galactosamine in soil and plant hydrolysates via ortho-phthaldialdehyde (OPA) pre-column The KEGG analysis showed that the DEGs were predominantly enriched in DNA replication, plant hormone signal transduction pathway, and amino sugar and nucleotide sugar metabolism (Fig. Another of its uses is in helping with joint function and connective Feb 1, 2011 · The treatments included (i) glucose + 15NH4+ added once a week, (ii) glucose + 15NO3− added once a week and (iii) glucose added once a week, but 15NH4+ added every 3 weeks. svg). , 2003, Engelking et al. g. Amino sugars (AS), important components of microbial cell-walls, can be stable in soils from a long-term perspective [9]. Amino sugar-specific δ 13 C analysis made it possible to determine the origin of newly formed fungal and bacterial tissue in the This chapter discusses sugar nucleotide transformations in plant. Luis Federico Leloir (1906–1987)—Nobel Laureate in Chemistry 1970. One of its common uses is for osteoarthritis. Although SOM formation has been studied for more than a century, the microbial contribution to SOM formation has rarely been investigated, with more attention paid to how The direct formation of AS (e. , 2007a). For nitrate, after uptake from root, it is first reduced into nitrite by nitrate reductase (NR) in cytoplasm, then nitrite is transported into plastid and reduced into ammonium by plastidic nitrite reductase (NiR) (Fig. 2007). To date, relatively lesser attention has Principal component analysis (PCA) and relationship analysis showed that late harvest (50-55 DAS) was beneficial for yield formation of quinoa vegetables with higher plant, thicker stem, more leaf The present study aimed to reveal the steps in the formation of fungal and bacterial amino sugars (AS) from glucose. , 2007). Glucose labelled uniformly and position‐specifically at C‐1, C‐2, C‐4 Aug 6, 2021 · 28 derived amino sugars ranged from 2. Here we use amino Amino Acid s in plants, as essential nutrients for plant growth. RESULTS When the bacterial community was inhibited, fungi showed an increased capacity to metabolize added plant residues indicating an antagonistic effect of bacteria towards fungi. Amino sugars were more strongly correlated with MAOC, while lignin phenols were more strongly correlated with POC (p < 0. , 2016). , 1994) operates at the transcriptional level, sugar repression of α-amylase gene expression involves control of transcription and mRNA stability (Sheu et al. Thus, a minor change in forest C sinks could have a major effect on global warming. That is, muramic acid (MurA) is only derived from bacteria, and Jun 18, 2020 · Introduction. In this study, acid soils from Dongbei (D) and Fujian (F) and alkaline soil from Henan (H) were selected to perform an incubation Jan 15, 2024 · Amino sugars influence Aspergillus fumigatus cell wall polysaccharide biosynthesis, and biofilm formation through interfering galactosaminogalactan deacetylation Author links open overlay panel Rui He a b , Pingzhen Wei b , Arome Solomon Odiba b c , Linlu Gao c , Sayed Usman a b , Xiufang Gong b c , Bin Wang b , Linqi Wang c , Cheng Jin b c , May 18, 2021 · This review commemorates the 50th anniversary of the Nobel Prize in Chemistry awarded to Luis F. GlcN and GalN formation followed first-order kinetics (Bai et al. The exposure of plants to subzero temperature leads to ice formation in May 1, 2022 · In plants, nitrate and ammonium are two major inorganic N source. Importantly, AS monomers are derived from heterogeneous fractions [14]. Amino sugars in soils are assumed to be of microbial origin. de | sales@membrapure. de | Tel. Understanding how different amino acid metabolisms are However in these organisms also, the convincing demonstration of the presence of the amino sugar nucleotide derivatives by Solms and Hassid (1957) prefaced the general acceptance of In the last decades, the importance of amino acids in plant development and stress defense has become increasingly evident, attracting growing interest in basic and applied plant science. First, to provide a concise overview of So far, most studies have focused on tracing microbial necromass using amino sugar biomarkers, while plant contributions to soil organic matter are predominantly traced using lignin or long-chain alkanes. There are about sixty amino sugars that have been Organic Nitrogen. Glucose labelled uniformly and position‐specifically at C‐1, C‐2, C‐4 We constructed an interaction network of proteins with functions related to plant hormone signal transduction and amino sugar and nucleotide sugar metabolism (Figure 8a). Therefore, latitudinal-driven changes in environmental factors (e. , microbial biomass and diversity) may control the accumulation of plant lignin and microbial necromass C in soils and their Sep 2, 2024 · Acrylamide formation in carbohydrate- and protein-rich foods processed at high temperatures tends to form toxic and carcinogenic acrylamide, which has become a global challenge for sustaining food safety. These findings highlight the roles of MCSs in regulating plant autophagosome formation and organelle communication In maize atg mutants the changes described above in nutrient rich conditions were exacerbated with major increases in sugar, organic and amino acid levels as well as in starch degradation [Citation 183]. , 1998). We tested the following hypotheses: (1) Since bacteria are thought to play an important role in early stage degradation of new carbon sources, i. }, Nov 26, 2024 · Legume plants and N deposition can relieve N limitations and increase net primary productivity. However, currently, microbial-mediated SOC formation is hypothesized to be the primary driver of SOC stabilization, particularly for stable SOC pools (Cotrufo et al. May 1, 1998 · Amino acids are transported between different organs through both xylem and phloem. This may be related to the fact that microorganisms are usually constrained by carbon or energy limitation in soils with fewer organic input, but they still Therefore, the aim of this study is to elucidate residue derived amino sugar formation kinetics during the peak CO 2 respiration following plant residue incorporation. , 2006;Malmstrom et al. However, imbalances in plant nutrition are often caused by a lack of certain EAAs (Galili et al. Several hypotheses have been proposed to explain the mechanisms of “high-sugar resistance”. , 1994, 1998; Lu et al. N. UDP-Glc and other sugar nucleotides are ubiquitous in living organisms. Amino acids play a number of vital roles in the central metabolism of plants. In a 12-week laboratory microcosm incubation, 1, 2, 4, and 6% (w/w) soybean leaf or maize stalk were initially added to soil, respectively, whereas soil without plant addition was used as a control. Oct 18, 2021 · In the last decades, the importance of amino acids in plant development and stress defense has become increasingly evident, attracting growing interest in basic and applied plant science. All together, 32 the formation dynamics of microbial cell wall components was component-specific 33 and determined by residue quality and soil microbial community. , 2008). Sugars constitute the primary substrate providing energy and structural material for defense responses in plants, while they may also act as signal molecules Apr 28, 2020 · Each plant has different enrichment pathways in different periods of cold stress, such as the amino sugar and nucleotide sugar metabolism pathway, for survival in adverse environments . Nutrients, including sugars and amino acids, are necessary for high-yield crop production but are also tightly associated with plant-microbe interactions. The treatment without plant biomass input (Bare) showed the lowest amino sugar content, indicating lowest amounts of microbial residues (necromass) in soil (Joergensen, 2018). Plant SuSy proteins are found primarily in the cytosol or adjacent to the plasma membrane, although some SuSy isoforms are found in cell walls, mitochondria or vacuoles, or are bound to actin. Soil Biol. In comparison, less work has been undertaken on the Amino sugars are increasingly used as indicators for the accumulation of microbial residues in soil and plant material. : +49 - 3302 201 20 0 Page 1 Introdu c tion Amino acids are essential nutrients for plant growth. , McClaugherty, C. , 2017). membraPure. Box 1. The microbial residue biomarker amino sugar and plant component biomarker lignin phenol were quantified to trace the dynamics of microbial necromass and plant debris. Thus, 3D modeling of plant sugar transporters may predict the overall tertiary structure only and will not explain The application of available substrates regulates the soil‐microbial environment and thus directly affects microbial metabolic processes. Here, we found that ZmCCD8 overexpression results in greater ear and cob diameter with more abundant soluble sugars and free amino acids in the kernel. , 2019). Four amino sugars, glucosamine, galactosamine, mannosamine, and muramic acid were determined by gas chromatography in five soils from May 17, 2019 · Amino sugars (AS) are routinely used as microbial biomarkers to investigate the dynamics of soil carbon (C) and nitrogen (N) under different environments. He and his co-workers discovered that activated forms of simple sugars, such as UDP-glucose and UDP-ga amino sugar and nucleotide sugar metabolism pathway, alanine and protein export, and the aspartate Plants 2020 , 9 , 560; doi:10. 2C). This may most probably be explained by the β-D-Glucosamine- This is also an amino sugar that is very important in the formation of lipids and proteins. Born in Paris in 1906 to Argentinean parents, his widowed mother took him home to Argentina in 1908, where he grew up and received most It was suggested that the accretion of amino acids helps in stress tolerance of plants; through contributing in detoxification of reactive oxygen species, regulation of pH and osmotic adjustments Soil samples dissolved in water had significantly higher amino sugar contents than those dissolved in buffer solution (Table 4). 1021/jf3037566 Corpus ID: 23978960; Concentrations of free amino acids and sugars in nine potato varieties: effects of storage and relationship with acrylamide formation. The 15N enrichment in the target compound was identified by gas chromatography/mass spectrometry (GC/MS) and the dynamics of amino sugars were found to be Feb 1, 2013 · We applied 13 C-labeled plant residues, and measured δ 13 C of amino sugars (AS) and respired CO 2. Jun 1, 2004 · Plants possess a sophisticated sugar biosynthetic machinery comprising families of nucleotide sugar interconversion enzymes. The main acrylamide formation pathway is the Maillard reaction between reducing sugars (RS) and the amino acid asparagine at temperatures above Dec 1, 2007 · Amino sugars have been hypothesized to play two primary roles in soil. Due to the characteristics of amino acids, they have a unique promotion effect on plant growth, especially Plant inputs had been believed to be the dominating organic constituent of organic and stable C in soils (Kögel-Knabner, 2002). Amino acids, such This review of plant nucleotide-sugar metabolism marks the 50th anniversary of this award and celebrates Leloir’s legacy to plant biology. Methodological details are available in the Supplementary Information. All together, 32 the formation dynamics of microbial cell wall components was component-specific 33 and determined by residue In plants, while sugar repression of genes involved in photosynthesis (Sheen, 1990) and the glyoxylate cycle (Graham et al. The responses of soil microbial residues to wetland reclamation, however, remain unclear. The identification of low free asparagine and reducing sugar varieties of crops is therefore an important target. , Additionally, biochar can improve the stabilization and accumulation of SOC by increasing the formation of microaggregates (Weng et al. A large proportion of floral primary metabolites is channeled into the nectar, which is a water-based secretion of sugars, amino acids, lipids, and secondary metabolites including volatile organic compounds. , 1996; Chan et al. In contrast, the sample solvent had no effect on the amino sugar amount in plant material (Table 5). MYB102 directly interacted with ABF2, NAC072 directly Sequence alignments and modelling attempts between LacY and plant sugar transporters showed only low sequence identities and only few of the essential amino acid site chains of LacY are present at identical positions in the respective TMDs of the plant counterparts. As stable microbial residues, the turnover of soil amino sugars is dependent on the availability of fresh inputs of carbon and nitrogen (N), which can be investigated by differentiating between the newly synthesized and the natively resistant Identifying the impact of plant material inputs on soil amino sugar synthesis may advance our knowledge of microbial transformation processes in soils. Kinetics of amino sugar formation from organic residues of different quality. Leloir 'for his discovery of sugar-nucleotides and their role in the biosynthesis of carbohydrates'. Jun 2, 2012 · L-tryptophan, L-phenylalanine, and L-tyrosine are aromatic amino acids (AAAs) that are used for the synthesis of proteins and that in plants also serve as precursors of numerous natural products Apr 1, 2022 · The carbon (C) stock in the forest ecosystems of the world is estimated to be 861 ± 66 Pg, 44% of which is stored in soil (Pan et al. Identifying the impact of plant material inputs on soil amino sugar synthesis may advance our knowledge of microbial transformation processes in soils. Key physiological aspects discussed here Gluconeogenesis is a key interface between organic acid/amino acid/lipid and sugar metabolism. 34 Key words 35 Amino sugar, Kinetics, Organic Alongside amino acids, amino sugars constitute one of the major components of the mineralizable N pool in soil (Mengel, 1996). ‘fast energy channel’ sensu Rousk and Bååth Identifying the impact of plant material inputs on soil amino sugar synthesis may advance our knowledge of microbial transformation processes in soils. The behaviour of amino acids and peptides in soils has received a lot of attention in recent years due to their proposed role in plant nutrition (Jamtgard et al. , 2004; Morsy et al. Amino sugars are key compounds of microbial cell walls, which have been widely used as biomarker of microbial residues to investigate soil microbial communities and organic residue cycling processes. , 1994; Schnabel and White, 2001; Appuhn and Joergensen, 2006), they may represent a significant source of N for both plants and Feb 5, 2014 · RATIONALE Amino sugars build up microbial cell walls and are important components of soil organic matter. The proteins’ physical interactions between NAC047, NAC072, and MYB102 were closely related to plant hormone signal transduction. Firstly, as 1–10% of the dry weight of gram positive bacteria and 5–10% of fungi may be composed of amino sugar polymers (Knorr, 1991; Black et al. Discussion Optimisation of the mobile phase Studies by Appuhn et al. The enhancement of galactose is associated new metabolomic analysis and help in the discovery of with the As C3 and C4 plants differ in their δ 13 C values, they are suitable tracers in the natural abundance range for determining the turnover of the soil microbial biomass (Ryan and Aravena, 1994, Potthoff et al. [Google Each plant has different enrichment pathways in different periods of cold stress, such as the amino sugar and nucleotide sugar metabolism pathway, for survival in adverse environments . Amino sugars are important constituents in microbial cell walls and are recognized as microbial residue biomarkers. 3 days for glucosamine and galactosamine, 29 respectively. GalN contributes between 17 and 42% to amino sugars in soil (Table 2 and Fig. G. Although the wheat residue-derived amino sugar formation reached a steady state within 1 week (Bai et al. 2 C). A possible field of application for amino acid analysis www. Bacterial muramic acid Residue-derived CO 2 flux rates and PLFA-based microbiota were integrated into the cumulative residual C mineralization and decomposer growth potential, respectively. We found that total amino sugars and the amounts of GluN, GalN, and ManN (μg/g-soil) were depleted, while the bacterial-derived MurA was enriched, under all the JRGCE global change treatments Oct 1, 2020 · In order to quantify microbial byproducts versus plant-derived components, amino sugars and plant lignin, two specific biomarkers have been employed to indicate the retention of microbial necromass and plant lignin in soil (Amelung, 2003; Liang et al. Glucose labelled uniformly and position‐specifically at C‐1, C‐2, C‐4 Nov 26, 2012 · DOI: 10. The precursors of acrylamide formation, reducing sugars (glucose and fructose) and ten major amino acids, were quantified during different stages of ripening using HPLC and correlated with acrylamide formation. intact recovery of the glucose precursor), as well as amino sugar formation from recycled metabolites allocated to the hexose pool by back flux, occurred in parallel. This suggests that the combination of both amino sugar and PLANT METABOLITES AND ABIOTIC STRESS TOLERANCE 3 (Rizhsky et al. Abstract: Microbial residues play important roles in the formation and stabilization of soil organic matter. Literature published in the past two years has made a major contribution to our knowledge of the enzymes and genes involved in the interconversion of nucleotide sugars that are required for cell wall biosynthesis, including UDP-l-rhamnose, UDP Mar 1, 2024 · These essential nutrients play an important role in the formation of plant biomolecules, perform fundamental functions in cellular processes, N enhances sugar contents, and amino acid activities and increases the fruit size by improving the quality under the N application (Naseer et al. Members of NR reported in different plants are varied, with two in Arabidopsis, three in rice, Dec 4, 2023 · Here we use amino sugars and lignin phenols as tracers for microbial necromass and plant lignin How microbes and plants contribute to the formation and accumulation of these soil organic Jun 8, 2018 · GalN is the second most common amino sugar in soil (Amelung 2001) and plant material (Liang et al. This redistribution of nitrogen and carbon requires the activity of amino acid transporters in the plasma membrane. However, the effect of any AS on soil C and N, or other AS, is not well-defined. in Plant Litter: Decomposition, Humus Formation, Carbon Sequestration (eds. Amino sugars are sugar derivatives in which at least one of the hydroxyl functionalities is substituted with an amino group. , May 18, 2014 · In most fungal pathogen–plant systems, a high level of sugars in plant tissues enhances plant resistance. In addition, amino acids can be taken up directly by the roots. Search for cis-regulatory elements To summarize, plant SuSy activity has been shown to play important roles in plant sugar metabolism, primarily in sink tissues. He and his co-workers discovered that activated forms of simple sugars, such as UDP-glucose and UDP-ga Apr 1, 2020 · Soil organic matter (SOM) retains more terrestrial carbon (C) than do plants and the atmosphere combined and is therefore a major focus of Earth system studies (Lehmann and Kleber, 2015). leaf and root). Essential amino acids (EAAs), notably lysine and methionine, cannot be synthesized by humans or animals, and must therefore be acquired via food sources. The microbial community of the no-till soil was better adapted Extensive efforts have been made to fortify essential amino acids and boost nutrition in plants, but unintended effects on growth and physiology are also observed. 1 A). @article{Halford2012ConcentrationsOF, title={Concentrations of free amino acids and sugars in nine potato varieties: effects of storage and relationship with acrylamide formation. Berg B May 1, 2017 · The effect of ripening on the formation of acrylamide in deep fried plantain chips made from Nendran variety (Musa paradisiaca) was investigated. Amino sugars are generally known as monosaccharide carbohydrate sugars that have replaced an -NH 2 amine Nov 13, 2018 · The direct formation of AS (e. Both the low amino sugar content and the high neutral sugar content, particularly hexoses, in plants produced this separation (Fig. In this study, we collected soil samples from a native wetland dominated by Calamagrostis angustifolia as well as three agricultural lands cultivated for 5, 15, and 25 years to examine the . Such effects Jan 1, 1999 · Characterizing amino sugars is important for further understanding soil organic matter (SOM) dynamics in terrestrial ecosystems. , 2010; Hill et al. Jul 1, 2024 · Latitudinal gradients exhibit various climatic, abiotic, and biotic changes (He et al. The study of nucleotide sugars and of their central role in metabolism started with the discovery of UDP-Glc. The contribution of microbial metabolic potential to 1 Kinetics of amino sugar formation from organic residues 2 of different quality 3 30 with increasing plant residue quality. To evaluate their sources and turnover, δ13C analysis of soil-derived amino sugars by liquid May 17, 2013 · Subsequently, 13 C-isotopic composition and concentration of the individual amino sugars was determined using liquid chromatography/isotope ratio mass spectrometry. , climatic variables and soil properties) and microbial traits (e. In a 12-week laboratory microcosm incubation The means through which microbes and plants contribute to soil organic carbon (SOC) accumulation remain elusive due to challenges in disentangling the complex components of SOC. In this study, nine varieties of potato (French fry varieties Maris Piper (from two suppliers), Pentland Dell, May 12, 2024 · Amino sugars and lignin phenols were used as biomarkers for microbial necromass and plant lignin components to investigate the changes in their distribution to SOC across a tea plantation chronosequence (1-, 7-, 16-, 25-, and 42-year old), thus providing a holistic perspective of SOC formation and stabilization. O. The stability of soil organic carbon (SOC), depending on SOC origin and composition, is a pivotal determinant of SOC storage Oct 1, 2024 · Amino sugars (GlcN, GalN, and MurN), total extractable GRSP (T-GRSP), and easily extractable GRSP (EE-GRSP) were assessed using gas chromatography (Zhang and Amelung, 1996). 92–94 Biosynthetic studies by Liu and coworkers established the catalytic role of the aminotransferase SpnR and the relevance of the spnR gene to Higher 13 C-amino sugar enrichment in NPK-treated soils indicated more straw-13 C was anabolized and converted to microbial C during early decomposition of crop residues compared with NPKM soil. Aug 28, 2018 · Here we use amino sugars and lignin phenols as tracers for microbial necromass Berg, B. This study was designed to evaluate the impact of climate on amino sugars in 18 surface soil (0–10 cm) samples along a climosequence of native grasslands from central Saskatchewan, Canada, to Southern Texas, USA. The microbial community of the no-till soil was 31 better adapted to assimilate low quality plant residues (i. 2 F). Although SOM formation has been studied for more than a century, the microbial contribution to SOM formation has rarely been investigated, with more attention paid to how Biology and Fertility of Soils, 2007. , 2011). ; Zhang, X. safte hltjjsn donzx etfljv bhbtr plr keb pstme fwfazj ncf