Back تحمل القحط Arabic Tolerancia a la sequía Spanish تحمل خشکی Persian 내건성 Korean Odporność roślin na suszę Polish Посухостійкість Ukrainian
In botany, drought tolerance is the ability by which a plant maintains its biomass production during arid or drought conditions.[1][2][3] Some plants are naturally adapted to dry conditions, surviving with protection mechanisms such as desiccation tolerance, detoxification, or repair of xylem embolism.[3] Other plants, specifically crops like corn, wheat, and rice, have become increasingly tolerant to drought with new varieties created via genetic engineering.[4] From an evolutionary perspective, the type of mycorrhizal associations formed in the roots of plants can determine how fast plants can adapt to drought.
The plants behind drought tolerance are complex and involve many pathways which allows plants to respond to specific sets of conditions at any given time. Some of these interactions include stomatal conductance, carotenoid degradation and anthocyanin accumulation, the intervention of osmoprotectants (such as sucrose, glycine, and proline), ROS-scavenging enzymes.[5][6][7][8] The molecular control of drought tolerance is also very complex and is influenced other factors such as environment and the developmental stage of the plant.[2] This control consists mainly of transcriptional factors, such as dehydration-responsive element-binding protein (DREB), abscisic acid (ABA)-responsive element-binding factor (AREB), and NAM (no apical meristem).[9][10]
- ^ Cite error: The named reference
:7was invoked but never defined (see the help page). - ^ a b "Biotechnology for the Development of Drought Tolerant Crops - Pocket K | ISAAA.org". www.isaaa.org. Retrieved 2018-11-29.
- ^ a b Tardieu, François; Simonneau, Thierry; Muller, Bertrand (2018-04-29). "The Physiological Basis of Drought Tolerance in Crop Plants: A Scenario-Dependent Probabilistic Approach". Annual Review of Plant Biology. 69 (1): 733–759. doi:10.1146/annurev-arplant-042817-040218. ISSN 1543-5008. PMID 29553801.
- ^ Hu, Honghong; Xiong, Lizhong (2014-04-29). "Genetic Engineering and Breeding of Drought-Resistant Crops". Annual Review of Plant Biology. 65 (1): 715–741. doi:10.1146/annurev-arplant-050213-040000. ISSN 1543-5008. PMID 24313844.
- ^ Ahmad, Uzair; Alvino, Arturo; Marino, Stefano (2021-10-17). "A Review of Crop Water Stress Assessment Using Remote Sensing". Remote Sensing. 13 (20): 4155. Bibcode:2021RemS...13.4155A. doi:10.3390/rs13204155. ISSN 2072-4292.
- ^ Varshney, Rajeev K; Tuberosa, Roberto; Tardieu, Francois (2018-06-08). "Progress in understanding drought tolerance: from alleles to cropping systems". Journal of Experimental Botany. 69 (13): 3175–3179. doi:10.1093/jxb/ery187. ISSN 0022-0957. PMC 5991209. PMID 29878257.
- ^ Shrestha, Asis; Fendel, Alexander; Nguyen, Thuy H.; Adebabay, Anteneh; Kullik, Annika Stina; Benndorf, Jan; Leon, Jens; Naz, Ali A. (2022-10-03). "Natural diversity uncovers P5CS1 regulation and its role in drought stress tolerance and yield sustainability in barley". Plant, Cell & Environment. 45 (12): 3523–3536. doi:10.1111/pce.14445. ISSN 0140-7791. PMID 36130879. S2CID 252438394.
- ^ Muzammil, Shumaila; Shrestha, Asis; Dadshani, Said; Pillen, Klaus; Siddique, Shahid; Léon, Jens; Naz, Ali Ahmad (October 2018). "An Ancestral Allele of Pyrroline-5-carboxylate synthase1 Promotes Proline Accumulation and Drought Adaptation in Cultivated Barley". Plant Physiology. 178 (2): 771–782. doi:10.1104/pp.18.00169. ISSN 0032-0889. PMC 6181029. PMID 30131422.
- ^ NAKASHIMA, Kazuo; SUENAGA, Kazuhiro (2017). "Toward the Genetic Improvement of Drought Tolerance in Crops". Japan Agricultural Research Quarterly. 51 (1): 1–10. doi:10.6090/jarq.51.1. ISSN 0021-3551.
- ^ Shrestha, Asis; Cudjoe, Daniel Kingsley; Kamruzzaman, Mohammad; Siddique, Shahid; Fiorani, Fabio; Léon, Jens; Naz, Ali Ahmad (June 2021). "Abscisic acid-responsive element binding transcription factors contribute to proline synthesis and stress adaptation in Arabidopsis". Journal of Plant Physiology. 261: 153414. doi:10.1016/j.jplph.2021.153414. PMID 33895677. S2CID 233397785.