Effects of bacterial ACC deaminase on Brassica napus gene expression

Molecular Plant-microbe Interactions : MPMI
Jennifer C StearnsBernard R Glick

Abstract

Plants in association with plant growth-promoting rhizobacteria can benefit from lower plant ethylene levels through the action of the bacterial enzyme 1-aminocyclopropane-1-carboxylic acid (ACC) deaminase. This enzyme cleaves the immediate biosynthetic precursor of ethylene, ACC. Ethylene is responsible for many aspects of plant growth and development but, under stressful conditions, it exacerbates stress symptoms. The ACC deaminase-containing bacterium Pseudomonas putida UW4 is a potent plant growth-promoting strain and, as such, was used to elaborate the detailed role of bacterial ACC deaminase in Brassica napus (canola) plant growth promotion. Transcriptional changes in bacterially treated canola plants were investigated with the use of an Arabidopsis thaliana oligonucleotide microarray. A heterologous approach was necessary because there are few tools available at present to measure global expression changes in nonmodel organisms, specifically with the sensitivity of microarrays. The results indicate that the transcription of genes involved in plant hormone regulation, secondary metabolism, and stress response was altered in plants by the presence of the bacterium, whereas the upregulation of genes for auxin response facto...Continue Reading

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Citations

Jan 1, 2012·Scientifica·Bernard R Glick
Nov 12, 2016·PeerJ·Jeremiah A HenningAimée T Classen
Mar 2, 2018·Antonie van Leeuwenhoek·Daiana R DucaBernard R Glick
Oct 21, 2017·International Journal of Phytoremediation·Rezvani Borujeni SamiraRezvani Borujeni Iraj
Dec 9, 2017·Chemical Society Reviews·Fernanda Oliveira ChagasMônica Tallarico Pupo
Nov 19, 2019·Physiology and Molecular Biology of Plants : an International Journal of Functional Plant Biology·Anupma DahiyaSatyavir S Sindhu
Apr 22, 2015·Plant Physiology·Elisa Gamalero, Bernard R Glick

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