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Physiological, biochemical and molecular responses of the potato ( S olanum tuberosum L .) plant to moderately elevated temperature
Author(s) -
HANCOCK ROBERT D.,
MORRIS WAYNE L.,
DUCREUX LAURENCE J. M.,
MORRIS JENNY A.,
USMAN MUHAMMAD,
VERRALL SUSAN R.,
FULLER JOHN,
SIMPSON CRAIG G.,
ZHANG RUNXUAN,
HEDLEY PETE E.,
TAYLOR MARK A.
Publication year - 2014
Publication title -
plant, cell and environment
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.646
H-Index - 200
eISSN - 1365-3040
pISSN - 0140-7791
DOI - 10.1111/pce.12168
Subject(s) - transcriptome , photosynthesis , metabolomics , abiotic component , biology , abiotic stress , solanum tuberosum , metabolite , yield (engineering) , horticulture , botany , biochemistry , gene expression , gene , bioinformatics , ecology , materials science , metallurgy
As we demonstrate in this study, potato tuber yield is susceptible to mild temperature stress. We demonstrate that despite the decreased tuber yield, there is an increase in net foliar photosynthesis at mildly elevated temperature. Using metabolomic and transcriptomic approaches we demonstrate profound effects in both metabolite profiles and transcript patterns in tubers in leaves, at the elevated temperature. RT ‐ PCR revealed perturbation in the expression of circadian clock transcripts including StSP6A , previously identified as a tuberisation signal. Our data indicate that potato plants grown at moderately elevated temperatures do not exhibit classic symptoms of abiotic stress but that tuber development responds via a diversity of biochemical and molecular signals.