ArticlePlant physiology2005
Water deficits affect caffeate O-methyltransferase, lignification, and related enzymes in maize leaves. A proteomic investigation.
Article in Plant physiology, 2005. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 67 papers.
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67 citing papers in PubMed, 249 citations in OpenAlex.
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- Comparative Effects of Water Scarcity on the Growth and Development of Two Common Bean (Plants (Basel, Switzerland) · 2024Article
- Maize hydroxycinnamic acids: unveiling their role in stress resilience and human health.Frontiers in nutrition · 2024Review
- Drought Stress Tolerance in Vegetables: The Functional Role of Structural Features, Key Gene Pathways, and Exogenous Hormones.International journal of molecular sciences · 2023Review
- Nitrogen deposition further increases Ambrosia trifida root exudate invasiveness under global warming.Environmental monitoring and assessment · 2023Article
- Evolution and expression analysis of the caffeoyl-CoA 3-O-methyltransferase (CCoAOMT) gene family in jute (Corchorus L.).BMC genomics · 2023Article
- Cell dehydration of intergeneric hybrid induces subgenome-related specific responses.Physiologia plantarum · 2023Article
- Metabolic Circuits in Sap Extracts Reflect the Effects of a Microbial Biostimulant on Maize Metabolism under Drought Conditions.Plants (Basel, Switzerland) · 2022Article
- Grafting enhances plants drought resistance: Current understanding, mechanisms, and future perspectives.Frontiers in plant science · 2022Review
- Prolonged drought regulates the silage quality of maize (Frontiers in plant science · 2022Article
- Article
- Sandbur Drought Tolerance Reflects Phenotypic Plasticity Based on the Accumulation of Sugars, Lipids, and Flavonoid Intermediates and the Scavenging of Reactive Oxygen Species in the Root.International journal of molecular sciences · 2021Article
- Transcriptomic responses to drought stress in Polygonatum kingianum tuber.BMC plant biology · 2021Article
- Modulation of photosynthesis and other proteins during water-stress.Molecular biology reports · 2021Review
- Multi-responses of O-methyltransferase genes to salt stress and fiber development of Gossypium species.BMC plant biology · 2021Article
- Cell Wall Compositions ofFrontiers in plant science · 2021Article
- Tetraploidy Confers SuperiorFrontiers in plant science · 2021Article
7 more citing papers are in PubMed but not listed here.
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Authors and funding
6 authors at 1 institution in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Drought is a major abiotic stress affecting all levels of plant organization and, in particular, leaf elongation. Several experiments were designed to study the effect of water deficits on maize (Zea mays) leaves at the protein level by taking into account the reduction of leaf elongation. Proteomic analyses of growing maize leaves allowed us to show that two isoforms of caffeic acid/5-hydroxyferulic 3-O-methyltransferase (COMT) accumulated mostly at 10 to 20 cm from the leaf point of insertion and that drought resulted in a shift of this region of maximal accumulation toward basal regions. We showed that this shift was due to the combined effect of reductions in growth and in total amounts of COMT. Several other enzymes involved in lignin and/or flavonoid synthesis (caffeoyl-CoA 3-O-methyltransferase, phenylalanine ammonia lyase, methylenetetrahydrofolate reductase, and several isoforms of S-adenosyl-l-methionine synthase and methionine synthase) were highly correlated with COMT, reinforcing the hypothesis that the zone of maximal accumulation corresponds to a zone of lignification. According to the accumulation profiles of the enzymes, lignification increases in leaves of control plants when their growth decreases before reaching their final size. Lignin levels analyzed by thioacidolysis confirmed that lignin is synthesized in the region where we observed the maximal accumulation of these enzymes. Consistent with the levels of these enzymes, we found that the lignin level was lower in leaves of plants subjected to water deficit than in those of well-watered plants.
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