Shared and novel molecular responses of mandarin to drought.

Details

Serval ID
serval:BIB_AFADA58B71C9
Type
Article: article from journal or magazin.
Collection
Publications
Title
Shared and novel molecular responses of mandarin to drought.
Journal
Plant molecular biology
Author(s)
Gimeno J., Gadea J., Forment J., Pérez-Valle J., Santiago J., Martínez-Godoy M.A., Yenush L., Bellés J.M., Brumós J., Colmenero-Flores J.M., Talón M., Serrano R.
ISSN
1573-5028 (Electronic)
ISSN-L
0167-4412
Publication state
Published
Issued date
07/2009
Peer-reviewed
Oui
Volume
70
Number
4
Pages
403-420
Language
english
Notes
Publication types: Journal Article ; Research Support, Non-U.S. Gov't
Publication Status: ppublish
Abstract
Drought is the most important stress experienced by citrus crops. A citrus cDNA microarray of about 6.000 genes has been utilized to identify transcriptomic responses of mandarin to water stress. As observed in other plant species challenged with drought stress, key genes for lysine catabolism, proline and raffinose synthesis, hydrogen peroxide reduction, vacuolar malate transport, RCI2 proteolipids and defence proteins such as osmotin, dehydrins and heat-shock proteins are induced in mandarin. Also, some aquaporin genes are repressed. The osmolyte raffinose could be detected in stressed roots while the dehydrin COR15 protein only accumulated in stressed leaves but not in roots. Novel drought responses in mandarin include the induction of genes encoding a new miraculin isoform, chloroplast beta-carotene hydroxylase, oleoyl desaturase, ribosomal protein RPS13A and protein kinase CTR1. These results suggest that drought tolerance in citrus may benefit from inhibition of proteolysis, activation of zeaxanthin and linolenoyl synthesis, reinforcement of ribosomal structure and down-regulation of the ethylene response.
Keywords
Amino Acid Sequence, Aquaporins/genetics, Aquaporins/metabolism, Blotting, Western, Citrus/genetics, Citrus/metabolism, Droughts, Gene Expression Profiling, Gene Expression Regulation, Plant/drug effects, Molecular Sequence Data, Oligonucleotide Array Sequence Analysis/methods, Plant Leaves/genetics, Plant Leaves/metabolism, Plant Proteins/genetics, Plant Proteins/metabolism, Plant Roots/genetics, Plant Roots/metabolism, Raffinose/metabolism, Reverse Transcriptase Polymerase Chain Reaction, Sequence Homology, Amino Acid, Transcription Factors/genetics, Transcription Factors/metabolism, Water/pharmacology
Pubmed
Web of science
Create date
10/01/2019 18:27
Last modification date
21/08/2019 6:35
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