Altered root hair morphogenesis in Phaseolus vulgaris in response to bacterial coinoculation and the presence of aminoethoxy vinyl glycine (AVG)

Autor:	F. B. Holl, M. Srinivasan, D. J. Petersen
Rok vydání:	1997
Předmět:	Growth medium integumentary system biology Morphogenesis Root hair biology.organism_classification Microbiology chemistry.chemical_compound chemistry Biochemistry Rhizobium etli Glycine Rhizobium Phaseolus Bacillus megaterium
Zdroj:	Microbiological Research. 152:151-156
ISSN:	0944-5013
DOI:	10.1016/s0944-5013(97)80006-7
Popis:	Treatment of Phaseolus vulgaris seedlings with the biosynthesis inhibitor, aminoethoxy vinyl glycine (AVG), resulted in a loss of root hair formation. Addition of the ethylene precursor 1-aminocyclopropane-l-carboxylic acid (ACC) to the growth medium enhanced root hair formation in P. vulgaris , in the absence of AVG. The inhibitory effect of AVG on root hair formation was reversed by the combined presence of Rhizobium etli TAL 182 and Bacillus megaterium S49 on P. vulgaris roots. Plants that received single inoculation of either Rhizobium TAL 182 or Bacillus S49 did not show enhancement of root hair formation when AVG was present in the growing medium. These results are consistent with the action of ACC as a positive regulator of root hair morphogenesis. The data suggest that the bacterial interaction may act through the ethylene biosyntheses pathway to enhance root hair morphogenesis, and to disrupt the normal pattern of root epidermal cell development.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::55b2d42e5df5c36fa5243ae98b207ffb https://doi.org/10.1016/s0944-5013(97)80006-7 Zobrazit plný text záznamu Full Text from ScienceDirect