Nitric oxide mitigates the effect of water deficit in Crambe abyssinica

Batista, Priscila Ferreira; Costa, Ana Letícia Rodrigues; Müller, Caroline; Silva-Filho, Robson de Oliveira; Silva, Fábia Barbosa da; Merchant, Andrew; Mendes, Giselle Camargo; Nascimento, Kelly Juliane Telles

doi:10.1016/j.plaphy.2018.06.012

Cited by 39 publications

(26 citation statements)

References 87 publications

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“…However, the reduction of Ψ W and RWC indicates that stomatal regulation was not enough to avoid water loss. In this sense, the reduction of Ψs leaf and Ψs root observed in the three cultivars can be related to the accumulation of osmoregulatory compounds, which acts to maintain cellular turgor (Batista et al, 2018).…”

Section: Discussionmentioning

confidence: 97%

“…Also, the osmotic adjustment is important for maintaining water uptake, CO 2 assimilation, and growth (Araújo and Deminicis, 2009;Monteiro et al, 2014). Among the osmolytes, proline has been described to alleviate water stress (Díaz et al 2005;Batista et al, 2018). However, under high temperature, sugars such as sucrose act in the osmoregulation since proline constitutes a toxic substance (Rizhsky et al, 2004).…”

Section: Discussionmentioning

confidence: 99%

“…It is adversely affecting plant development in many agricultural areas (Dai et al, 2018). Water deficit promotes the reduction of leaf water potential, leading to stomatal closure, decreased CO 2 absorption, and reduced photosynthesis (Goisser et al, 2016;Batista et al, 2018;Moura et al, 2018). In addition, water deficit increases foliar temperature (Heschel et al, 2014), affects membrane properties, and decreases dry matter production, leading to premature senescence and causing reduced production (Arruda et al, 2015;Fernandes et al, 2015).…”

Section: Introductionmentioning

confidence: 99%

“…Even under water restriction, this adjustment allows the plant to keep the stomata partially open to assimilate CO 2 and continue the processes of cell elongation and plant growth (Araújo and Deminicis, 2009;Monteiro et al, 2014). In order to allow osmotic adjustment, tolerant plants accumulate osmotically active compounds such as polyamines, glycine, organic acids, calcium, potassium, chloride ions, proline, sugars, and polyols, particularly sucrose (Cvikrová et al, 2013;Khan and Komatsu, 2016;Batista et al, 2018). Along with high efficiency in osmotic adjustment and water use, the ability to maintain photosynthetically active structures is also important for the selection of soybean cultivars with double tolerance to stresses caused by water deficit and high temperature.…”

Section: Introductionmentioning

confidence: 99%

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Physiological tolerance to drought under high temperature in soybean cultivars

et al. 2019

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Soybean is one of the most economically important crops and has experienced adverse physiological and biochemical effects when subjected to drought stress and heat, resulting in lost productivity. Thus, the objective of this work was to evaluate the physiological, metabolic and growth responses of well-watered and drought-treated soybean cultivars under high temperature. The experimental design was set up in randomized blocks, in a factorial scheme with three soybean cultivars (7739 M, Anta 82 and Desafio) and two water levels (100% and 40% field capacity). The experiment was conducted in a controlled growth chamber with a gradual rise in temperature at 41°C for 5 hours daily. Morpho-physiological and metabolic analyses were performed 12 days after the treatments imposition. The parameters of water and osmotic potentials, relative water content, photosynthetic rate, stomatal conductance, transpiratory rate, electron flux for the carboxylation and oxygenation of RuBisCO were decreased for all cultivars under water deficit and high temperature. The results showed that the photorespiration and the rate of electrolyte leakage were increased as well. These results showed that these physiological behaviors are standard for soybean plants under water deficit, regardless of cultivars. The cultivars 7739 M and Desafio showed lower performance than the cultivar Anta 82 for the parameters of total electron flow and effective quantum yield of PS II. The 7739 M and Anta 82 were the only cultivars to show increased nonphotochemical quenching dissipation and total soluble sugar content, respectively, under stress conditions. Desafio cultivar demonstrated greater physiological and growth traits stability, which could potentially indicate double tolerance to these stresses.

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Section: Discussionmentioning

confidence: 97%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Physiological tolerance to drought under high temperature in soybean cultivars

et al. 2019

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“…Similar values for this parameter of F V /F M were visualized by Silva et al (2014) and Moura et al (2018) in R. sativus plants, when compared to the control plants, proving that these were ideal values for this species. The increase of F 0 as a function of the increase of the doses of the herbicide tepraloxydim, even in a non-high order, is an indication of the limitations in the transfer of the excitation energy from the antenna pigments to the reaction center (Lima et al, 2017;Batista et al, 2018).…”

Section: Resultsmentioning

confidence: 99%