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Plant growth under suboptimal water conditions : early responses and methods to study them

Marieke Dubois (UGent) and Dirk Inzé (UGent)
(2020) JOURNAL OF EXPERIMENTAL BOTANY. 71(5). p.1706-1722
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Abstract
Drought stress forms a major environmental constraint during the life cycle of plants, often decreasing plant yield and in extreme cases threatening survival. The molecular and physiological responses induced by drought have therefore been the topic of extensive research during the last decades. Because soil-based approaches to study drought responses are often inconvenient due to low throughput and insufficient control of the conditions, osmotic stress assays in plates were developed to mimic drought. Addition of compounds such as poly-ethylene glycol, mannitol, sorbitol, or NaCl to controlled growth media has become increasingly popular since it offers the advantage of accurate control of stress level and onset. These osmotic stress assays enabled the discovery of very early stress responses, occurring within seconds or minutes following osmotic stress exposure. In this review, we construct a detailed timeline of early responses to osmotic stress, with a focus on how they initiate plant growth arrest. We further discuss the specific responses triggered by different types and severities of osmotic stress. Finally, we compare short-term plant responses under osmotic stress vs. in-soil drought and discuss the advantages, disadvantages and future of these plate-based proxies for drought.
Keywords
Plant Science, Physiology, Drought, mannitol, osmotic stress, polyethylene glycol, salt, signaling, sorbitol, stress response, ENHANCES DROUGHT TOLERANCE, RESPIRATORY BURST OXIDASE, ACTIVATED PROTEIN-KINASE, NAC TRANSCRIPTION FACTOR, SALT-STRESS-RESPONSE, OSMOTIC-STRESS, ABSCISIC-ACID, LEAF GROWTH, PLASMA-MEMBRANE, NATURAL VARIATION

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MLA
Dubois, Marieke, and Dirk Inzé. “Plant Growth under Suboptimal Water Conditions : Early Responses and Methods to Study Them.” JOURNAL OF EXPERIMENTAL BOTANY, vol. 71, no. 5, 2020, pp. 1706–22, doi:10.1093/jxb/eraa037.
APA
Dubois, M., & Inzé, D. (2020). Plant growth under suboptimal water conditions : early responses and methods to study them. JOURNAL OF EXPERIMENTAL BOTANY, 71(5), 1706–1722. https://doi.org/10.1093/jxb/eraa037
Chicago author-date
Dubois, Marieke, and Dirk Inzé. 2020. “Plant Growth under Suboptimal Water Conditions : Early Responses and Methods to Study Them.” JOURNAL OF EXPERIMENTAL BOTANY 71 (5): 1706–22. https://doi.org/10.1093/jxb/eraa037.
Chicago author-date (all authors)
Dubois, Marieke, and Dirk Inzé. 2020. “Plant Growth under Suboptimal Water Conditions : Early Responses and Methods to Study Them.” JOURNAL OF EXPERIMENTAL BOTANY 71 (5): 1706–1722. doi:10.1093/jxb/eraa037.
Vancouver
1.
Dubois M, Inzé D. Plant growth under suboptimal water conditions : early responses and methods to study them. JOURNAL OF EXPERIMENTAL BOTANY. 2020;71(5):1706–22.
IEEE
[1]
M. Dubois and D. Inzé, “Plant growth under suboptimal water conditions : early responses and methods to study them,” JOURNAL OF EXPERIMENTAL BOTANY, vol. 71, no. 5, pp. 1706–1722, 2020.
@article{8649304,
  abstract     = {Drought stress forms a major environmental constraint during the life cycle of plants, often decreasing plant yield and in extreme cases threatening survival. The molecular and physiological responses induced by drought have therefore been the topic of extensive research during the last decades. Because soil-based approaches to study drought responses are often inconvenient due to low throughput and insufficient control of the conditions, osmotic stress assays in plates were developed to mimic drought. Addition of compounds such as poly-ethylene glycol, mannitol, sorbitol, or NaCl to controlled growth media has become increasingly popular since it offers the advantage of accurate control of stress level and onset. These osmotic stress assays enabled the discovery of very early stress responses, occurring within seconds or minutes following osmotic stress exposure. In this review, we construct a detailed timeline of early responses to osmotic stress, with a focus on how they initiate plant growth arrest. We further discuss the specific responses triggered by different types and severities of osmotic stress. Finally, we compare short-term plant responses under osmotic stress vs. in-soil drought and discuss the advantages, disadvantages and future of these plate-based proxies for drought.},
  author       = {Dubois, Marieke and Inzé, Dirk},
  issn         = {0022-0957},
  journal      = {JOURNAL OF EXPERIMENTAL BOTANY},
  keywords     = {Plant Science,Physiology,Drought,mannitol,osmotic stress,polyethylene glycol,salt,signaling,sorbitol,stress response,ENHANCES DROUGHT TOLERANCE,RESPIRATORY BURST OXIDASE,ACTIVATED PROTEIN-KINASE,NAC TRANSCRIPTION FACTOR,SALT-STRESS-RESPONSE,OSMOTIC-STRESS,ABSCISIC-ACID,LEAF GROWTH,PLASMA-MEMBRANE,NATURAL VARIATION},
  language     = {eng},
  number       = {5},
  pages        = {1706--1722},
  title        = {Plant growth under suboptimal water conditions : early responses and methods to study them},
  url          = {http://dx.doi.org/10.1093/jxb/eraa037},
  volume       = {71},
  year         = {2020},
}

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