| 000 | nab a22 7a 4500 | ||
|---|---|---|---|
| 999 |
_c63101 _d63093 |
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| 001 | 63101 | ||
| 003 | MX-TxCIM | ||
| 005 | 20210122214636.0 | ||
| 008 | 202102s2021||||ne |||p|op||||00||0|eng|d | ||
| 022 | _a0098-8472 | ||
| 024 | 8 | _ahttps://doi.org/10.1016/j.envexpbot.2020.104333 | |
| 040 | _aMX-TxCIM | ||
| 041 | _aeng | ||
| 100 | 1 |
_aCanales, F.J. _917869 |
|
| 245 | 1 | 0 | _aDrought resistance in oat involves ABA-mediated modulation of transpiration and root hydraulic conductivity |
| 260 |
_aNetherlands : _bElsevier, _c2021. |
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| 500 | _aPeer review | ||
| 520 | _aDrought is one of the most important constraints to crop productivity worldwide. Control of plant responses to drought is very complex. The mechanisms and their intensity may differ between species and/or genotypes ultimately conditioning tolerance or susceptibility. We explore here the strategy set up by two oat cultivars to cope with drought based on root morphological, anatomical, physiological and molecular studies. A dramatic and rapid abscisic acid increase in the susceptible genotype resulted in a tight and rapid reduction of stomatal conductance. Despite of this, leaf water potential decreased concomitantly due to a decrease in root hydraulic conductivity. By contrast, the resistant genotype, showed a mild and slow increase in abscisic acid that allowed maintaining transpiration longer. This response was linked to an increase in root hydraulic conductance through an increase in total root length and in the length of the thinnest roots as well as a rise in root conductivity. This was also coupled with anatomical changes leading to a reduction of metabolic cost. These changes allowed the resistant genotype to maintain higher water potential reducing drought symptoms and promoting growth under water deficit conditions. | ||
| 546 | _aText in English | ||
| 650 | 7 |
_aABA _2AGROVOC _93517 |
|
| 650 | 7 |
_aDrought _2AGROVOC _91080 |
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| 650 | 7 |
_aHydraulic conductivity _2AGROVOC _99621 |
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| 650 | 7 |
_aOats _2AGROVOC _99804 |
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| 650 | 7 |
_aRoots _2AGROVOC _91755 |
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| 650 | 7 |
_aTranspiration _2AGROVOC _94721 |
|
| 700 | 1 |
_aRispail, N. _917871 |
|
| 700 | 1 |
_aGarcía-Tejera, O. _917872 |
|
| 700 | 1 |
_aArbona, V. _917873 |
|
| 700 | 1 |
_aPérez-de-Luque, A. _917874 |
|
| 700 | 1 |
_aPrats, E. _917875 |
|
| 773 | 0 |
_tEnvironmental and Experimental Botany _gv. 182, art. 104333 _dNetherlands : Elsevier, 2021. _x0098-8472 _wu444262 |
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| 942 |
_cJA _n0 _2ddc |
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