Induction of water deficit tolerance by cold shock and salicylic acid during germination in the common bean

Agostini, Edna Antônia Torquato de; Neto, Nelson Barbosa Machado; Custódio, Ceci Castilho

doi:10.4025/actasciagron.v35i2.15967

Cited by 21 publications

(18 citation statements)

References 36 publications

(14 reference statements)

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“…SA treatment also affected protein translation, priming of seed metabolism, synthesis of antioxidant enzymes, and mobilization of seed storage proteins leading to increased seed vigor [ 31 ]. Similar positive effects of SA treatment on seedling growth were also reported in bean [ 198 ]. SA is now implicated in promoting Arabidopsis seedling germination by modulating antioxidant activity [ 199 ].…”

Section: Interaction Of Sa With Other Plant Hormonessupporting

confidence: 63%

Hormone Signaling: Current Perspectives on the Roles of Salicylic Acid and Its Derivatives in Plants

Kumar

Haq

Chapagai

et al. 2015

The Formation, Structure and Activity of Phytochemicals

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Salicylic acid (SA) is an important plant hormone with a wide range of effects on plant growth and metabolism. Plants lacking SA exhibit enhanced susceptibility to pathogens. SA plays important signaling roles in resistance against biotrophic and hemi-biotrophic phytopathogens. It is synthesized in plastids along two pathways, one involving phenylalanine ammonia lyase (PAL) and the other isochorismate synthase (ICS). In Arabidopsis , during immune response most SA is synthesized through the ICS-dependent pathway, but clearly an ICS-independent pathway also exists. Several SA effector proteins have been identifi ed and characterized which mediate downstream SA signaling. This includes SABP, a catalase, SABP2, a methyl salicylate esterase, SABP3, a carbonic anhydrase, NPR1 (nonexpressor of pathogenesis-related 1), NPR3 (a NPR1 paralog), and NPR4 (another NPR1 paralog). NPR3 and NPR4 regulate the turnover of NPR1, a process which plays a key role in activating defense gene expression. The role of SA in abiotic stress signaling is gradually becoming clearer. Various components of SA signaling in biotic stress also appear to impact abiotic stress signaling.

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Section: Interaction Of Sa With Other Plant Hormonessupporting

confidence: 63%

Hormone Signaling: Current Perspectives on the Roles of Salicylic Acid and Its Derivatives in Plants

Kumar

Haq

Chapagai

et al. 2015

The Formation, Structure and Activity of Phytochemicals

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“…Salicylic acid has been studied extensively to evaluate its capability to provide protection to plants, when they are subjected to water stress. These studies have been conducted in different agricultural crops, including common beans, by Agostini, Machado-Neto and Custódio (2013); in sesame, by Silva et al (2017); and in cowpea, by Dutra et al (2017) and Costa (2016).…”

Section: Introductionmentioning

confidence: 99%

Germination and Initial Growth of Cowpea Cultivars Under Osmotic Stress and Salicylic Acid

et al. 2018

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Cowpea is one of the major food crops in Northeast Brazil, where it is commonly cultivated in the semi-arid regions with limited water availability. It is important to study the elicitors associated with cowpea to mitigate any deleterious effects of abiotic stress on the initial establishment of this crop. In this study, we aimed to evaluate the morphophysiological changes in cowpea cultivars under osmotic stress with seeds soaked in salicylic acid. The germination test was conducted in B.O.D germination chambers. The seeds of three cowpea cultivars: BRS Tumucumaque, BRS Aracê, and BRS Guariba, were germinated at five osmotic potentials (0.0; -0.2; -0.4; -0.6, and -0.8 MPa) after three pre-treatments: pre-soaking in deionized water, pre-soaking in salicylic acid, and without pre-soaking. The following parameters were evaluated: germination, germination speed index, seedling height, total phytomass, contents of chlorophyll ‘a’ and ‘b’, carotenoid content, electrolyte leakage, water content, and proline content. Our results indicate that salicylic acid promotes reduction in the harmful effects of abiotic stress, which is reflected in the increase in germination percentage, seedling height, and chlorophyll and carotenoid content as well as in the adjustment of electrolyte leakage and increase in proline content under induced water stress conditions. The cultivar BRS Guariba proved to be more tolerant to water deficit during germination and initial growth stages, when the seeds were treated with salicylic acid (1 mM).

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“…This is an important way to note that the seedling length is more sensitive to the reduction of water availability in comparison to seed germination (ABATI et al, 2014). The aerial part length of the common bean (P. vulgaris) decreased to zero when subjected to a potential of -1.2 MPa mannitol solution (AGOSTINI et al, 2013).…”

Section: Source Of Variationmentioning

confidence: 99%

“…This fact can be explained by the lower production of G6PDH and consequently of NADPH, culminating in a decline in the activities of some antioxidant enzymes due to the unfavorable environments to which the plants are submitted such as water stresses, producing lower Calvin cycle activity, which results This is an important way to note that the seedling length is more sensitive to the reduction of water availability in comparison to seed germination (ABATI et al, 2014). The aerial part length of the common bean (P. vulgaris) decreased to zero when subjected to a potential of -1.2 MPa mannitol solution (AGOSTINI et al, 2013).…”

Section: Source Of Variationmentioning

confidence: 99%

Physiological potential of Phaseolus lunatus L. seeds subjected to water stress at different temperatures

Nascimento

Silva

Alves

et al. 2019

SCA

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Germination is negatively influenced by water scarcity and by temperatures above or below the optimal range of the species, so it is necessary to know the critical point of absorption for the species or cultivar. The objective of this work was to evaluate the effect of water stress, simulated by solutions of polyethylene glycol 6000 (PEG 6000) at different temperatures, on the germination and vigor of seeds of four cultivars (Branca, Orelha de Vó, Rosinha and Roxinha) of beans (Phaseolus lunatus L.). The water stress simulation was performed using PEG 6000 solutions at concentrations of 0.0, -0.2, -0.4, -0.6, -0.8, -1.0, and -1.2 MPa at temperatures of 25, 30, and 35 ° C. The analyzed variables were percentage of germination at first count, germination speed index, length of aerial part and primary root of seedlings, and dry mass of the respective parts of the seedlings. The seeds of the cultivar Orelha de Vó were more sensitive to water stress, with 88% germinating up to the potential of -0.6 MPa at the tested temperatures. The cultivars Branca, Rosinha, and Roxinha germinated (94, 100, and 100%, respectively) up to the potential of -0.8 MPa. Water stress simulated by PEG (6000) negatively affects seed twinning and seed vigor of bean cultivars.

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Induction of water deficit tolerance by cold shock and salicylic acid during germination in the common bean

Cited by 21 publications

References 36 publications

Hormone Signaling: Current Perspectives on the Roles of Salicylic Acid and Its Derivatives in Plants

Hormone Signaling: Current Perspectives on the Roles of Salicylic Acid and Its Derivatives in Plants

Germination and Initial Growth of Cowpea Cultivars Under Osmotic Stress and Salicylic Acid

Physiological potential of Phaseolus lunatus L. seeds subjected to water stress at different temperatures

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