Title |
Dehydration stress memory genes of Zea mays; comparison with Arabidopsis thaliana
|
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Published in |
BMC Plant Biology, May 2014
|
DOI | 10.1186/1471-2229-14-141 |
Pubmed ID | |
Authors |
Yong Ding, Laetitia Virlouvet, Ning Liu, Jean-Jack Riethoven, Michael Fromm, Zoya Avramova |
Abstract |
Pre-exposing plants to diverse abiotic stresses may alter their physiological and transcriptional responses to a subsequent stress, suggesting a form of "stress memory". Arabidopsis thaliana plants that have experienced multiple exposures to dehydration stress display transcriptional behavior suggesting "memory" from an earlier stress. Genes that respond to a first stress by up-regulating or down-regulating their transcription but in a subsequent stress provide a significantly different response define the 'memory genes' category. Genes responding similarly to each stress form the 'non-memory' category. It is unknown whether such memory responses exists in other Angiosperm lineages and whether memory is an evolutionarily conserved response to repeated dehydration stresses. |
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