esterase/رشاد الصخر

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The defense-related rice gene Pir7b encodes an alpha/beta hydrolase fold protein exhibiting esterase activity towards naphthol AS-esters.

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Acquired resistance of rice to Pyricularia oryzae, the causing agent of rice blast, can be induced by inoculation with the non-host pathogen Pseudomonas syringae pv. syringae. We have previously cloned a cDNA and a corresponding gene (Pir7b) whose transcripts accumulate upon infiltration with the

Unique regulation of the active site of the serine esterase S-formylglutathione hydrolase.

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S-Formylglutathione hydrolases (SFGHs) are highly conserved thioesterases present in prokaryotes and eukaryotes, and form part of the formaldehyde detoxification pathway, as well as functioning as xenobiotic-hydrolysing carboxyesterases. As defined by their sensitivity to covalent modification,

Constitutive expression of a fungal glucuronoyl esterase in Arabidopsis reveals altered cell wall composition and structure.

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A family 15 carbohydrate esterase (CE15) from the white-rot basidiomycete, Phanerochaete carnosa (PcGCE), was transformed into Arabidopsis thaliana Col-0 and was expressed from the constitutive cauliflower mosaic virus 35S promoter. Like other CE15 enzymes, PcGCE hydrolyzed

Caffeoyl shikimate esterase (CSE) is an enzyme in the lignin biosynthetic pathway in Arabidopsis.

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Lignin is a major component of plant secondary cell walls. Here we describe caffeoyl shikimate esterase (CSE) as an enzyme central to the lignin biosynthetic pathway. Arabidopsis thaliana cse mutants deposit less lignin than do wild-type plants, and the remaining lignin is enriched in

Improving total saccharification yield of Arabidopsis plants by vessel-specific complementation of caffeoyl shikimate esterase (cse) mutants.

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BACKGROUND Caffeoyl shikimate esterase (CSE) was recently characterized as an enzyme central to the lignin biosynthetic pathway in Arabidopsis thaliana. The cse-2 loss-of-function mutant shows a typical phenotype of lignin-deficient mutants, including collapsed vessels, reduced lignin content, and

Expression of fungal acetyl xylan esterase in Arabidopsis thaliana improves saccharification of stem lignocellulose.

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Cell wall hemicelluloses and pectins are O-acetylated at specific positions, but the significance of these substitutions is poorly understood. Using a transgenic approach, we investigated how reducing the extent of O-acetylation in xylan affects cell wall chemistry, plant performance and the

A GDSL-type esterase/lipase gene, GELP77, is necessary for pollen dissociation and fertility in Arabidopsis.

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Pollen wall characteristics are dramatically changed during pollen maturation. Many genes have been identified as regulators of such changes in pollen wall characteristics, but mechanisms of such changes have not been completely understood. Here, a GDSL-type esterase/lipase gene, GELP77, is shown to

Genome-Wide Identification, Evolution, and Expression of GDSL-Type Esterase/Lipase Gene Family in Soybean

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GDSL-type esterase/lipase proteins (GELPs) belong to the SGNH hydrolase superfamily and contain a conserved GDSL motif at their N-terminus. GELPs are widely distributed in nature, from microbes to plants, and play crucial roles in growth and development, stress responses and pathogen defense.

Functional expression of an ajmaline pathway-specific esterase from Rauvolfia in a novel plant-virus expression system.

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Acetylajmalan esterase (AAE) plays an essential role in the late stage of ajmaline biosynthesis. Based on the partial peptide sequences of AAE isolated and purified from Rauvolfia cell suspensions, a full-length AAE cDNA clone was isolated. The amino acid sequence of AAE has the highest level of

BIIDXI, the At4g32460 DUF642 gene, is involved in pectin methyl esterase regulation during Arabidopsis thaliana seed germination and plant development.

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BACKGROUND DUF642 proteins constitute a highly conserved family of proteins that are associated with the cell wall and are specific to spermatophytes. Transcriptome studies have suggested that members of this family are involved in seed development and germination processes. Previous in vitro

Silencing CAFFEOYL SHIKIMATE ESTERASE Affects Lignification and Improves Saccharification in Poplar.

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Caffeoyl shikimate esterase (CSE) was recently shown to play an essential role in lignin biosynthesis in Arabidopsis (Arabidopsis thaliana) and later in Medicago truncatula However, the general function of this enzyme was recently questioned by the apparent lack of CSE activity in lignifying tissues

Ectopic expression of an esterase, which is a candidate for the unidentified plant cutinase, causes cuticular defects in Arabidopsis thaliana.

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Cutinase is an esterase that degrades the polyester cutin, a major component of the plant cuticle. Although cutinase activity has been detected in pollen, the genes encoding this enzyme have not been identified. Here, we report the identification and characterization of Arabidopsis CDEF1 (cuticle

Genome-wide analysis of GDSL-type esterases/lipases in Arabidopsis.

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UNASSIGNED In this present study, we introduce a fundamental framework and provide information regarding the possible roles of GDSL-type esterase/lipase gene family in Arabidopsis. GDSL-type esterases/lipases are hydrolytic enzymes with multifunctional properties such as broad substrate specificity,

Inactive methyl indole-3-acetic acid ester can be hydrolyzed and activated by several esterases belonging to the AtMES esterase family of Arabidopsis.

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The plant hormone auxin (indole-3-acetic acid [IAA]) is found both free and conjugated to a variety of carbohydrates, amino acids, and peptides. We have recently shown that IAA could be converted to its methyl ester (MeIAA) by the Arabidopsis (Arabidopsis thaliana) enzyme IAA carboxyl

Requirement for pectin methyl esterase and preference for fragmented over native pectins for wall-associated kinase-activated, EDS1/PAD4-dependent stress response in Arabidopsis.

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The wall-associated kinases (WAKs) have a cytoplasmic protein kinase domain that spans the plasma membrane and binds pectin in the extracellular matrix of plants. WAKs are required for cell expansion during Arabidopsis seedling development but are also an integral part of the response to pathogens

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