phospholipase/nicotiana

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Inhibition of phospholipase D alpha by N-acylethanolamines.

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N-Acylethanolamines (NAEs) are endogenous lipids in plants produced from the phospholipid precursor, N-acylphosphatidylethanolamine, by phospholipase D (PLD). Here, we show that seven types of plant NAEs differing in acyl chain length and degree of unsaturation were potent inhibitors of the

Genome-Wide Analysis and Expression Profiling of the Phospholipase C Gene Family in Soybean (Glycine max).

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Phosphatidylinositol-specific phospholipase C (PI-PLC) hydrolyses phosphatidylinositol-4,5-bisphosphate to produce diacylglycerol and inositol 1,4,5-trisphosphate. It plays an important role in plant development and abiotic stress responses. However, systematic analysis and expression profiling of

Involvement of phospholipases C and D in the defence responses of riboflavin-treated tobacco cells.

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Riboflavin is an activator of defence responses in plants that increases resistance against diseases caused by fungal, oomycete, bacterial and viral pathogens. However, the mechanisms driving defence activation by riboflavin are poorly understood. We investigated the signal transduction pathways of

Molecular cloning, expression, and characterization of secretory phospholipase A2 in tobacco.

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Phospholipase A2 (PLA2) activity was investigated in various tissues of tobacco (Nicotiana tabacum). PLA2 activity in the flower was 15 times higher than that in the leaf, stem, and root. PLA2 activity in the flower appears to have originated from both Ca2+-dependent and -independent PLA2. A cDNA

Ergosterol elicits oxidative burst in tobacco cells via phospholipase A2 and protein kinase C signal pathway.

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Ergosterol, a typical fungal sterol, induced in tobacco (Nicotiana tabacum L. cv. Xanthi) suspension cells the synthesis of reactive oxygen species and alkalization of the external medium that are dependent on the mobilization of calcium from internal stores. We used specific inhibitors to elucidate

Phosphatidylinositol-phospholipase C2 regulates pattern-triggered immunity in Nicotiana benthamiana.

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Phospholipid signaling plays an important role in plant immune responses against phytopathogenic bacteria in Nicotiana benthamiana. Here, we isolated two phospholipase C2 (PLC2) orthologs in the N. benthamiana genome, designated as N. benthamiana PLC2-1 and 2-2. Both NbPLC2-1 and NbPLC2-2 were

"Self" and "non-self" in the control of phytoalexin biosynthesis: plant phospholipases A2 with alkaloid-specific molecular fingerprints.

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The overproduction of specialized metabolites requires plants to manage the inherent burdens, including the risk of self-intoxication. We present a control mechanism that stops the expression of phytoalexin biosynthetic enzymes by blocking the antecedent signal transduction cascade. Cultured cells

The G-protein-coupled receptor GCR1 regulates DNA synthesis through activation of phosphatidylinositol-specific phospholipase C.

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Different lines of evidence suggest that specific events during the cell cycle may be mediated by a heterotrimeric G-protein activated by a cognate G-protein coupled receptor. However, coupling between the only known Galpha-subunit of the heterotrimeric G-protein (GPA1) and the only putative

Promoter analysis and expression of a phospholipase D gene from castor bean.

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The expression of a castor bean (Ricinus communis L.) phospholipase D (PLD; EC 3.1.4.4) gene has been studied by examining its promoter activity in transgenic tobacco (Nicotiana tabacum) carrying a PLD promoter-glucuronidase transgene and by monitoring the levels of PLD mRNA in castor bean. Sequence

Characterization of secretory phospholipase A₂ with phospholipase A₁ activity in tobacco, Nicotiana tabacum (L.).

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A cDNA encoding protein with homology to plant secretory phospholipase A₂ (sPLA₂), denoted as Nt1 PLA₂, was isolated from tobacco (Nicotiana tabacum). The cDNA encodes a mature protein of 118 amino acid residues with a putative signal peptide of 29 residues. The mature form of Nt1 PLA₂ has 12

VdPLP, A Patatin-Like Phospholipase in Verticillium dahliae, Is Involved in Cell Wall Integrity and Required for Pathogenicity.

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The soil-borne ascomycete fungus Verticillium dahliae causes vascular wilt disease and can seriously diminish the yield and quality of important crops. Functional analysis of growth- and pathogenicity-related genes is essential for revealing the pathogenic molecular mechanism of V. dahliae.

Phosphatidic acid produced by phospholipase D promotes RNA replication of a plant RNA virus.

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Eukaryotic positive-strand RNA [(+)RNA] viruses are intracellular obligate parasites replicate using the membrane-bound replicase complexes that contain multiple viral and host components. To replicate, (+)RNA viruses exploit host resources and modify host metabolism and membrane organization.

Cucumber Phospholipase D alpha gene overexpression in tobacco enhanced drought stress tolerance by regulating stomatal closure and lipid peroxidation.

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Plant phospholipase D (PLD), which can hydrolyze membrane phospholipids to produce phosphatidic acid (PA), a secondary signaling molecule, has been proposed to function in diverse plant stress responses. Both PLD and PA play key roles in plant growth, development, and cellular

A plasma-membrane linker for the phosphoinositide-specific phospholipase C in tobacco plants.

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We previously screened genes that were transcriptionally activated during the early stage of wound response in tobacco plants (Nicotiana tabacum), and isolated a particular clone, which encoded a membrane-located protein, designated as NtC7. Upon overexpression in tobacco plants, NtC7 conferred a

Molecular identification of cytosolic, patatin-related phospholipases A from Arabidopsis with potential functions in plant signal transduction.

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Rapid activation of phospholipase A (PLA) by auxin or plant-pathogen interaction suggests a function in signal transduction for this enzyme, but the molecular identification of a cytosolic PLA carrying out this function remains open. We isolated four cDNA sequences from Arabidopsis (ecotype

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