Thaxtomin A affects CESA-complex density, expression of cell wall genes, cell wall composition, and causes ectopic lignification in Arabidopsis thaliana seedlings

• Published in: Journal of experimental botany Vol. 60; no. 3; pp. 955 - 965
• Main Authors: Bischoff, Volker, Cookson, Sarah Jane, Wu, Shuang, Scheible, Wolf-Rüdiger
• Format: Journal Article
• Language: English
• Published: Oxford Oxford University Press 01.03.2009; Oxford Publishing Limited (England); Oxford University Press (OUP)
• Subjects: Arabidopsis; Arabidopsis - cytology; Arabidopsis - drug effects; Arabidopsis - genetics; Arabidopsis thaliana; Biological and medical sciences; Biosynthesis; callose; Carbon Isotopes; Cell Membrane; Cell Membrane - drug effects; Cell Membrane - enzymology; Cell Wall; Cell Wall - drug effects; Cell Wall - enzymology; Cell Wall - genetics; cell wall components; Cell walls; Cellulose; cellulose synthase; cytology; defence response; drug effects; Environmental Sciences; enzymology; Eubacteria; Fundamental and applied biological sciences. Psychology; gene expression regulation; Gene Expression Regulation, Plant; Gene Expression Regulation, Plant - drug effects; Genes; Genes, Plant; genetics; Glucosyltransferases; Glucosyltransferases - metabolism; hemicellulose; Indoles; Indoles - pharmacology; isoxaben; Life Sciences; Lignification; Lignin; Lignin - metabolism; mechanism of action; metabolism; microscopy; microtubule; Microtubules; Mode of action; Multienzyme Complexes; Multienzyme Complexes - metabolism; pectins; pharmacology; phenotype; phytotoxin; Phytotoxins; Piperazines; Piperazines - pharmacology; Plant cells; Plant physiology; Plants; plasma membrane; RESEARCH PAPER; Research Papers; Seedlings; Seedlings - cytology; Seedlings - drug effects; Seedlings - enzymology; Streptomyces; thaxtomin; Vegetal Biology; callose; microtubule; defence response; cellulose; phytotoxin; isoxaben; thaxtomin; lignin; Lignin; Plant juvenile growth stage; Cellulose; Defensive response; Density; Cell wall; Actinomycetales; Arabidopsis thaliana; Lignification; Gene; Cruciferae; Dicotyledones; Angiospermae; Botany; Bacteria; Streptomycetaceae; Phytotoxin; Pesticides; Streptomyces; Herbicide; Callose; Benzamide derivatives; Actinomycetes; Spermatophyta; Microtubule; Experimental plant; Arabidopsis thaliana; callose; cellulose; defence response; isoxaben; lignin; microtubule; phytotoxin; Streptomyces; thaxtomin
• ISSN: 0022-0957; 1460-2431
• DOI: 10.1093/jxb/ern344

Thaxtomin A, a phytotoxin produced by Streptomyces eubacteria, is suspected to act as a natural cellulose synthesis inhibitor. This view is confirmed by the results obtained from new chemical, molecular, and microscopic analyses of Arabidopsis thaliana seedlings treated with thaxtomin A. Cell wall a...