000			03023nab a22004217a 4500
001			G95748
003			MX-TxCIM
005			20190927185340.0
008			121211b |||p||p||||||| |z||| |
022			_a1752-9867 (Revista en electrónico)
022	0		_a1674-2052
024	8		_ahttps://doi.org/10.1093/mp/ssr102
040			_aMX-TxCIM
090			_aCIS-6481
100	1		_aWitt, S. _92015
245	0	0	_aMetabolic and phenotypic responses of greenhouse-grown maize hybrids to experimentally controlled drought stress
260			_c2012
500			_aPeer-review: Yes - Open Access: Yes|http://science.thomsonreuters.com/cgi-bin/jrnlst/jlresults.cgi?PC=MASTER&ISSN=1674-2052
520			_aAdaptation to abiotic stresses like drought is an important acquirement of agriculturally relevant crops like maize. Development of enhanced drought tolerance in crops grown in climatic zones where drought is a very dominant stress factor therefore plays an essential role in plant breeding. Previous studies demonstrated that corn yield potential and enhanced stress tolerance are associated traits. In this study, we analyzed six different maize hybrids for their ability to deal with drought stress in a greenhouse experiment. We were able to combine data from morphophysiological parameters measured under well-watered conditions and under water restriction with metabolic data from different organs. These different organs possessed distinct metabolite compositions, with the leaf blade displaying the most considerable metabolome changes following water deficiency. Whilst we could show a general increase in metabolite levels under drought stress, including changes in amino acids, sugars, sugar alcohols, and intermediates of the TCA cycle, these changes were not differential between maize hybrids that had previously been designated based on field trial data as either drought-tolerant or susceptible. The fact that data described here resulted from a greenhouse experiment with rather different growth conditions compared to natural ones in the field may explain why tolerance groups could not be confirmed in this study. We were, however, able to highlight several metabolites that displayed conserved responses to drought as well as metabolites whose levels correlated well with certain physiological traits.
536			_aGlobal Maize Program
546			_aEnglish
591			_aCIMMYT Informa No. 1791|Oxford
593			_aLucia Segura
594			_aINT2948|INT2691
595			_aCSC
650	1	0	_acarbon metabolism
650	1	0	_ametabolomics
650	1	0	_awater relations
700	1		_91436 _aAraus, J.L.
700	1		_aFernie, A.R., _ecoaut. _92019
700	1		_aGalicia, L., _ecoaut.
700	1		_aLisec, J., _ecoaut. _92016
700	1		_aTiessen, A., _ecoaut.
700	1		_9850 _aPalacios-Rojas, N. _gGlobal Maize Program _8INT2691
700	1		_9879 _aCairns, J.E. _gGlobal Maize Program _8INT2948
773	0		_tMolecular Plant _gv. 5, no. 2, p. 401-417
942			_cJA
999			_c28737 _d28737