TY - JOUR
T1 - Post-transcriptional and post-translational regulations of drought and heat response in plants
T2 - A spider’s web of mechanisms
AU - Guerra, Davide
AU - Crosatti, Cristina
AU - Khoshro, Hamid H.
AU - Mastrangelo, Anna M.
AU - Mica, Erica
AU - Mazzucotelli, Elisabetta
N1 - Publisher Copyright:
© 2015 Guerra, Crosatti, Khoshro, Mastrangelo, Mica and Mazzucotelli.
PY - 2015/1/11
Y1 - 2015/1/11
N2 - Drought and heat tolerance are complex quantitative traits. Moreover, the adaptive significance of some stress-related traits is more related to plant survival than to agronomic performance. A web of regulatory mechanisms fine-tunes the expression of stress-related traits and integrates both environmental and developmental signals. Both post-transcriptional and post-translational modifications contribute substantially to this network with a pivotal regulatory function of the transcriptional changes related to cellular and plant stress response. Alternative splicing and RNA-mediated silencing control the amount of specific transcripts, while ubiquitin and SUMO modify activity, sub-cellular localization and half-life of proteins. Interactions across these modification mechanisms ensure temporally and spatially appropriate patterns of downstream-gene expression. For key molecular components of these regulatory mechanisms, natural genetic diversity exists among genotypes with different behavior in terms of stress tolerance, with effects upon the expression of adaptive morphological and/or physiological target traits.
AB - Drought and heat tolerance are complex quantitative traits. Moreover, the adaptive significance of some stress-related traits is more related to plant survival than to agronomic performance. A web of regulatory mechanisms fine-tunes the expression of stress-related traits and integrates both environmental and developmental signals. Both post-transcriptional and post-translational modifications contribute substantially to this network with a pivotal regulatory function of the transcriptional changes related to cellular and plant stress response. Alternative splicing and RNA-mediated silencing control the amount of specific transcripts, while ubiquitin and SUMO modify activity, sub-cellular localization and half-life of proteins. Interactions across these modification mechanisms ensure temporally and spatially appropriate patterns of downstream-gene expression. For key molecular components of these regulatory mechanisms, natural genetic diversity exists among genotypes with different behavior in terms of stress tolerance, with effects upon the expression of adaptive morphological and/or physiological target traits.
KW - Alternative splicing
KW - Drought stress
KW - Heat stress
KW - Stress tolerance
KW - Sumoylation
KW - Ubiquitination
KW - miRNA-mediated gene silencing
UR - http://www.scopus.com/inward/record.url?scp=84923226076&partnerID=8YFLogxK
U2 - 10.3389/fpls.2015.00057
DO - 10.3389/fpls.2015.00057
M3 - Review article
SN - 1664-462X
VL - 6
JO - Frontiers in Plant Science
JF - Frontiers in Plant Science
IS - FEB
M1 - 57
ER -