Abscisic Acid Decreases Leaf Na+ Exclusion in Salt-Treated Phaseolus vulgaris L.

Cabot, Catalina; Sibole, John V.; Barceló, Joan; Poschenrieder, Charlotte

doi:10.1007/s00344-009-9088-5

Cited by 75 publications

(26 citation statements)

References 16 publications

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“…Considering that ABA is a key hormone in regulating drought stress responses, the exposure of plants to salinity has been known to induce an increase in ABA levels. For example, ABA increased in leaves of salt stressed Brassica [17], Phaseolus vulgaris [18] and Zea mays [19]. Among the tools used to understand the mechanism of hormone action under abiotic conditions is the ABA application.…”

Section: Effect Of Aba On Plant Growth Responses Under Drought and Samentioning

confidence: 99%

Alterations of Endogenous Hormonal Levels in Plants under Drought and Salinity

Llanes¹,

Andrade²,

Alemano³

et al. 2016

AJPS

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The phytohormones are pivotal chemical messengers produced within the plant that regulate its growth and development, and responses to environmental stimuli. Drought and salinity are adverse environmental factors that disturb the plant hormonal balance. Accordingly, these hormonal fluctuations modify the cellular dynamic and hence they play a central role in regulating plant growth responses to abiotic stresses such as drought and salinity. The present review gives an update about the alterations of endogenous phytohormones such as abscisic acid (ABA), auxins (Aux), cytokinins (CKs), ethylene (ET), gibberellins (GAs), jasmonates (JAs), salicylic acid (SA), brassinosteroids (BRs), strigolactones (SLs) and nitric oxide (NO) that occur as part of the adaptative responses of plant against drought and salt stresses. Better understanding of the endogenous hormonal changes during the plant response to both abiotic stresses will contribute, in part, to the development of stress-tolerant plants.

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Section: Effect Of Aba On Plant Growth Responses Under Drought and Samentioning

confidence: 99%

Alterations of Endogenous Hormonal Levels in Plants under Drought and Salinity

Llanes¹,

Andrade²,

Alemano³

et al. 2016

AJPS

View full text Add to dashboard Cite

show abstract

“…However, the increased ABA level unexpectedly led to plant growth retardation. Higher level of the endogenous ABA for increasing salt stress tolerance in plants including Oryza sativa (Moons et al 1995), Brassica (He and Cramer 1996), Phaseolus vulgaris (Cabot et al 2009) and Zea mays (Cramer and Quarrie 2002) strongly correlated with growth defects.…”

Section: Introductionmentioning

confidence: 98%

Plant hormones in salt stress tolerance

2015

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Plants, as a sessile organism, rely on the endogenous regulators for the modulation of growth and development under severe stress conditions for their survival. Plant hormones have long been considered as essential endogenous molecules involved in regulating plant development and tolerance or susceptibility of diverse stresses including salinity stress. Plants are frequently exposed to numerous adverse environmental factors such as drought, cold, heat and high salinity. Under high salinity, plants rapidly reduce the growth and developmental programs in response to the stress due to either the effects of specific ions on metabolism, or adverse water relations. Recent investigations on the functional roles of plant hormones in response to unfavorable environmental conditions have eventually unravel their potentials in coffering tolerance to such conditions including salinity stress. In this review, we will present recent progress of our understanding to the important role of plant hormones including abscisic acid (ABA), auxin, cytokinins (CK), brassinosteroids (BRs), jasmonate, gibberellin (GA) and ethylene for alleviation of salt stress in plants.

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“…These responses against ABA are understandable for supraoptimal salinity, but it is unclear that the same responses are induced by ABA at suboptimal salinity. Recently, Cabot et al (2009) reported that ABA decreases leaf Na þ exclusion and accumulates Na þ in leaf in salt-treated Phaseolus vulgaris. Because of the importance of Na þ for maintaining osmotic potential of Salicornia bigelovii low, it was possible that accumulated ABA could lead to lower shoot Na þ exclusion at suboptimal salinity.…”

Section: Role Of Abscisic Acid At Suboptimal Salinitymentioning

confidence: 99%

Water deficit and abscisic acid production ofSalicornia bigeloviiunder salinity stress

Ohori

Fujiyama

2011

Soil Science and Plant Nutrition

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We investigated the mechanism of growth reduction of dicotyledonous halophyte Salicornia bigelovii under salinity stress by growing it at 0.005 to 500 mol m À3 sodium chloride (NaCl). The optimal range for growth of S. bigelovii was between 50 and 200 mol m À3 NaCl. A significant correlation was found between growth and water content, which indicated that water deficit was an important factor in growth reduction at both suboptimal and supraoptimal salinities. Abscisic acid (ABA) concentration of the shoot was negatively related to growth and water content, which suggested that ABA induced by water deficit may inhibit growth at both the suboptimal and supraoptimal salinities. The cause of water deficit at supraoptimal salinity might be caused by nutritional imbalance and osmotic stress due to the low osmotic potential of the external solution. However, limited salt uptake may be one of the causes of water deficit under suboptimal salinity. We discuss a sodium ion (Na þ ) specific deficit rather than salt deficit as another possible cause of water deficit.

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Abscisic Acid Decreases Leaf Na+ Exclusion in Salt-Treated Phaseolus vulgaris L.

Cited by 75 publications

References 16 publications

Alterations of Endogenous Hormonal Levels in Plants under Drought and Salinity

Alterations of Endogenous Hormonal Levels in Plants under Drought and Salinity

Plant hormones in salt stress tolerance

Water deficit and abscisic acid production ofSalicornia bigeloviiunder salinity stress

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