Abstract
Moringa oleifera leaf extract (MLE) is rich in amino acids, ascorbate, zeatin, minerals, and many other compounds known for their growth-promoting potential. Therefore, a pot experiment was aimed to study the effect of foliar spray with aqueous extracts of Moringa oleifera leaves on some physiological, biochemical, and molecular markers of common bean plants (Phaseolus vulgaris) grown under salt stress (200 mM), high temperature (45 °C), and gamma rays (200 Gy). The results showed that the shoot and root length, fresh and dry weights of shoots and roots, photosynthetic pigments, and phytohormone contents were decreased significantly in stressed plants as compared with untreated plants under all environmental stresses. On the other hand, total soluble sugars content, glutathione, malondialdehyde, O2•−, and H2O2 contents were significantly increased in stressed plants as compared to untreated plants. The exposure to different environmental stresses caused damage in leaf ultrastructure, which led to both vesiculation and swelling in the chloroplast stroma. In addition, many retrotransposons were showed to be activated in response to environmental stresses. Retrotransponson detecting the differences between control and stress samples in terms of different fragment length which reflects the effect of MLE and both stresses. The foliar application of moringa leaf extract caused significantly increased in all the above parameters. Results of this study suggested that MLE as antioxidant could activate the antioxidants in plants to enable them to alleviate the oxidative damage leading to improvements in physiological and molecular attributes in plants grown under the adverse conditions of environmental stresses.
Abstract from the paper’s OpenAlex record; open copy licensed cc-by. Read at the source ↗
The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.
Claims 12
Claim · model-written summary
Environmental stresses significantly decreased shoot and root length in common bean.
- Taxon
- common bean plants
Phaseolus vulgarist0 - Treatment
- all environmental stressese0
- Outcome
- shoot and root lengthe0
- Direction
- decreasede0
- Comparator
- untreated plantse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“shoot and root length, fresh and dry weights of shoots and roots, photosynthetic pigments, and phytohormone contents were decreased significantly in stressed plants as compared with untreated plants under all environmental stresses”
t0“common bean plants”
Claim · model-written summary
Environmental stresses significantly decreased fresh and dry shoot and root weights.
- Taxon
- common bean plantsPhaseolus vulgarist0
- Treatment
- all environmental stressese0
- Outcome
- fresh and dry weights of shoots and rootse0
- Direction
- decreasede0
- Comparator
- untreated plantse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“fresh and dry weights of shoots and roots, photosynthetic pigments, and phytohormone contents were decreased significantly in stressed plants as compared with untreated plants under all environmental stresses”
t0“common bean plants”
Claim · model-written summary
Environmental stresses significantly decreased photosynthetic pigments.
- Taxon
- common bean plantsPhaseolus vulgarist0
- Treatment
- all environmental stressese0
- Outcome
- photosynthetic pigmentse0
- Direction
- decreasede0
- Comparator
- untreated plantse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“photosynthetic pigments, and phytohormone contents were decreased significantly in stressed plants as compared with untreated plants under all environmental stresses”
t0“common bean plants”
Claim · model-written summary
Environmental stresses significantly decreased phytohormone contents.
- Taxon
- common bean plantsPhaseolus vulgarist0
- Treatment
- all environmental stressese0
- Outcome
- phytohormone contentse0
- Direction
- decreasede0
- Comparator
- untreated plantse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“phytohormone contents were decreased significantly in stressed plants as compared with untreated plants under all environmental stresses”
t0“common bean plants”
Claim · model-written summary
Environmental stresses significantly increased total soluble sugars content.
- Taxon
- common bean plantsPhaseolus vulgarist0
- Treatment
- stressed plantse0
- Outcome
- total soluble sugars contente0
- Direction
- increasede0
- Comparator
- untreated plantse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“total soluble sugars content, glutathione, malondialdehyde, O2•−, and H2O2 contents were significantly increased in stressed plants as compared to untreated plants”
t0“common bean plants”
Claim · model-written summary
Environmental stresses significantly increased glutathione content.
- Taxon
- common bean plantsPhaseolus vulgarist0
- Treatment
- stressed plantse0
- Outcome
- glutathionee0
- Direction
- increasede0
- Comparator
- untreated plantse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“glutathione, malondialdehyde, O2•−, and H2O2 contents were significantly increased in stressed plants as compared to untreated plants”
t0“common bean plants”
Claim · model-written summary
Environmental stresses significantly increased malondialdehyde, O2•− and H2O2 contents.
- Taxon
- common bean plantsPhaseolus vulgarist0
- Treatment
- stressed plantse0
- Outcome
- malondialdehyde, O2•−, and H2O2 contentse0
- Direction
- increasede0
- Comparator
- untreated plantse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“malondialdehyde, O2•−, and H2O2 contents were significantly increased in stressed plants as compared to untreated plants”
t0“common bean plants”
Claim · model-written summary
Environmental stresses damaged leaf ultrastructure, with chloroplast stroma vesiculation and swelling.
- Taxon
- common bean plantsPhaseolus vulgarist0
- Organ / stage
- leafe0
- Treatment
- different environmental stressese0
- Outcome
- damage in leaf ultrastructuree0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The exposure to different environmental stresses caused damage in leaf ultrastructure, which led to both vesiculation and swelling in the chloroplast stroma.”
t0“common bean plants”
Claim · model-written summary
Environmental stresses activated many retrotransposons.
- Taxon
- common bean plantsPhaseolus vulgarist0
- Treatment
- environmental stressese0
- Gene
- retrotransposonse0
- Outcome
- retrotransposons were showed to be activatede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“many retrotransposons were showed to be activated in response to environmental stresses”
t0“common bean plants”
Claim · model-written summary
Retrotransposon fragments differed in length between control and stress samples.
- Taxon
- common bean plantsPhaseolus vulgarist0
- Outcome
- different fragment lengthe0
- Comparator
- control and stress samplese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Retrotransponson detecting the differences between control and stress samples in terms of different fragment length”
t0“common bean plants”
Claim · model-written summary
Foliar moringa leaf extract significantly increased the reported plant parameters.
- Taxon
- common bean plantsPhaseolus vulgarist0
- Treatment
- foliar application of moringa leaf extracte0
- Outcome
- all the above parameterse0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The foliar application of moringa leaf extract caused significantly increased in all the above parameters.”
t0“common bean plants”
Claim · model-written summary
The authors suggest MLE activates plant antioxidants and alleviates oxidative damage.
- Taxon
- common bean plantsPhaseolus vulgarist0
- Treatment
- MLEe0
- Outcome
- oxidative damagee0
- Qualifier
- could activate the antioxidants in plantse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“MLE as antioxidant could activate the antioxidants in plants to enable them to alleviate the oxidative damage leading to improvements in physiological and molecular attributes in plants grown under the adverse conditions of environmental stresses”
t0“common bean plants”
The same questions in other papers
climate site · growth · Phaseolus vulgaris (common bean)Positive and negative results
3 papers in the same direction as this paper · 1 in the opposite direction
- positive
- negative
- negative
1 paper more in this group
See all 5 papers →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.