Abstract
Common bean (Phaseolus vulgaris L.) is sensitive to drought and salinity, while an ancestral legume, tepary bean (P. acutifolius A. Gray) is cultivated successfully where high temperature and drought are common (Lazcano-Ferrat and Lovatt, 1999). Hence, P. acutifolius is a potential source of stress tolerant traits for P. vulgaris through interspecific hybrids. This study comparatively evaluated the effects of salt stress on leaf relative water content (RWC), soluble protein, the phytohormones indole acetic acid (IAA), gibberellic acid (GA3), zeatin, and abscisic acid (ABA) levels in P. vulgaris and P. acutifolius. With the exception of ABA, stress-induced changes in hormonal levels putatively related to stress tolerance have not been investigated previously in either species. Treatment with 50 mM, 100 mM and 150 mM NaCl reduced relative water and protein content in P. vulgaris, but did not affect relative water content and increased protein content in P. acutifolius. Varietal differences between P. vulgaris and P. acutifolius were also observed in hormonal content during the stress period. ABA levels in salt-treated plants of P. vulgaris increased but did not change in P. acutifolius versus the controls. Both IAA and gibberellin levels increased in leaves of P. acutifolius but decreased in P. vulgaris under salt stress. In salt-treated plants, zeatin concentrations in leaves of P. vulgaris decreased within 24–72 h after treatment. However, P. acutifolius responded to all tested NaCl levels by increasing zeatin concentrations after short-term NaCl treatment.
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Claims 9
Claim · model-written summary
NaCl at 50, 100 and 150 mM reduced relative water content and protein content in P. vulgaris.
- Taxon
- P. vulgaris
Phaseolus vulgarise0 - Treatment
- 50 mM, 100 mM and 150 mM NaCle0
- Outcome
- relative water and protein contente0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Treatment with 50 mM, 100 mM and 150 mM NaCl reduced relative water and protein content in P. vulgaris, but did not affect relative water content and increased protein content in P. acutifolius”
Claim · model-written summary
NaCl at 50, 100 and 150 mM did not affect relative water content in P. acutifolius.
- Taxon
- P. acutifolius
Phaseolus acutifoliuse0 - Treatment
- 50 mM, 100 mM and 150 mM NaCle0
- Outcome
- relative water contente0
- Direction
- did not affecte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Treatment with 50 mM, 100 mM and 150 mM NaCl reduced relative water and protein content in P. vulgaris, but did not affect relative water content and increased protein content in P. acutifolius”
Claim · model-written summary
NaCl at 50, 100 and 150 mM increased protein content in P. acutifolius.
- Taxon
- P. acutifoliusPhaseolus acutifoliuse0
- Treatment
- 50 mM, 100 mM and 150 mM NaCle0
- Outcome
- protein contente0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Treatment with 50 mM, 100 mM and 150 mM NaCl reduced relative water and protein content in P. vulgaris, but did not affect relative water content and increased protein content in P. acutifolius”
Claim · model-written summary
ABA levels increased in salt-treated P. vulgaris plants versus the controls.
- Taxon
- P. vulgarisPhaseolus vulgarise0
- Treatment
- salt-treatede0
- Outcome
- ABA levelse0
- Direction
- increasede0
- Comparator
- controlse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“ABA levels in salt-treated plants of P. vulgaris increased but did not change in P. acutifolius versus the controls”
Claim · model-written summary
ABA levels did not change in salt-treated P. acutifolius plants versus the controls.
- Taxon
- P. acutifoliusPhaseolus acutifoliuse0
- Treatment
- salt-treatede0
- Outcome
- ABA levelse0
- Direction
- did not changee0
- Comparator
- controlse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“ABA levels in salt-treated plants of P. vulgaris increased but did not change in P. acutifolius versus the controls”
Claim · model-written summary
IAA and gibberellin levels increased in leaves of P. acutifolius under salt stress.
- Taxon
- P. acutifoliusPhaseolus acutifoliuse0
- Organ / stage
- leavese0
- Treatment
- salt stresse0
- Outcome
- IAA and gibberellin levelse0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Both IAA and gibberellin levels increased in leaves of P. acutifolius but decreased in P. vulgaris under salt stress”
Claim · model-written summary
IAA and gibberellin levels decreased in leaves of P. vulgaris under salt stress.
- Taxon
- P. vulgarisPhaseolus vulgarise0
- Organ / stage
- leavese0
- Treatment
- salt stresse0
- Outcome
- IAA and gibberellin levelse0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Both IAA and gibberellin levels increased in leaves of P. acutifolius but decreased in P. vulgaris under salt stress”
Claim · model-written summary
Zeatin concentrations in leaves of salt-treated P. vulgaris decreased within 24-72 h after treatment.
- Taxon
- P. vulgarisPhaseolus vulgarise0
- Organ / stage
- leavese0
- Treatment
- salt-treatede0
- Outcome
- zeatin concentrationse0
- Direction
- decreasede0
- Qualifier
- within 24–72 h after treatmente0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In salt-treated plants, zeatin concentrations in leaves of P. vulgaris decreased within 24–72 h after treatment”
Claim · model-written summary
P. acutifolius responded to all tested NaCl levels by increasing zeatin concentrations after short-term NaCl treatment.
- Taxon
- P. acutifoliusPhaseolus acutifoliuse0
- Treatment
- all tested NaCl levelse0
- Outcome
- zeatin concentrationse0
- Direction
- increasinge0
- Qualifier
- after short-term NaCl treatmente0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“P. acutifolius responded to all tested NaCl levels by increasing zeatin concentrations after short-term NaCl treatment”
The same questions in other papers
sodium chloride · quality: protein · Phaseolus vulgaris (common bean)Results agree
2 papers in the same direction as this paper
- negative
- negative
Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.