Abstract
Green leaf volatiles play vital roles in plant biotic stress, however, their functions in plant responses to abiotic stress remain unclear. The aim of this study was to investigate the possible role of Z-3-Hexenyl Acetate (Z-3-HAC), a kind of the green leaf volatile, on alleviating salinity stress of peanut (Arachis hypogaea L.) seedlings and the underlying physiological mechanisms. One salt-sensitive and one salt-tolerant peanut genotypes were primed with 200 μM Z-3-HAC at the four-week old stage before they were exposed to salinity stress. Physiological measurements showed that the primed seedlings possessed higher relative water content, net photosynthetic rate, the maximal photochemical efficiency of photosystem II, activities of the antioxidant enzymes, and osmolytes accumulation under salinity conditions. Furthermore, the reactive oxygen species, electrolyte leakage, and malondialdehyde content in the third fully expanded leaves showed significantly lower than non-primed plants. Additionally, we found that application of Z-3-HAC increased the total length, surface area, and volume of the peanut roots under salinity stress. These results indicated that the green leaf volatile Z-3-HAC protects peanut seedlings against damage from salinity stress through priming for modifications of photosynthetic apparatus, antioxidant systems, osmoregulation, and root morphology.
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Claims 5
Claim · model-written summary
Primed peanut seedlings had higher relative water content, net photosynthetic rate, and photosystem II efficiency under salinity.
- Taxon
- peanut
Arachis hypogaeat0 - Treatment
- primede0
- Outcome
- relative water content, net photosynthetic rate, the maximal photochemical efficiency of photosystem IIe0
- Direction
- highere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“primed seedlings possessed higher relative water content, net photosynthetic rate, the maximal photochemical efficiency of photosystem II”
t0“Peanut (Arachis hypogaea L.) Seedlings”
Claim · model-written summary
Primed peanut seedlings had higher antioxidant enzyme activity and osmolyte accumulation under salinity.
- Taxon
- peanutArachis hypogaeat0
- Treatment
- primede0
- Outcome
- activities of the antioxidant enzymes, and osmolytes accumulatione0
- Direction
- highere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the primed seedlings possessed higher relative water content, net photosynthetic rate, the maximal photochemical efficiency of photosystem II, activities of the antioxidant enzymes, and osmolytes accumulation under salinity conditions”
t0“Peanut (Arachis hypogaea L.) Seedlings”
Claim · model-written summary
Z-3-HAC priming significantly reduced reactive oxygen species, electrolyte leakage, and malondialdehyde content in peanut leaves.
- Taxon
- peanutArachis hypogaeat0
- Organ / stage
- third fully expanded leavese0
- Treatment
- Priming With the Green Leaf Volatile (Z)-3-Hexeny-1-yl Acetatet0
- Outcome
- reactive oxygen species, electrolyte leakage, and malondialdehyde contente0
- Direction
- lowere0
- Comparator
- non-primed plantse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“reactive oxygen species, electrolyte leakage, and malondialdehyde content in the third fully expanded leaves showed significantly lower than non-primed plants”
t0“Priming With the Green Leaf Volatile (Z)-3-Hexeny-1-yl Acetate Enhances Salinity Stress Tolerance in Peanut (Arachis hypogaea L.) Seedlings”
Claim · model-written summary
Z-3-HAC increased total peanut root length, surface area and volume under salinity stress.
- Taxon
- peanutArachis hypogaeae0
- Organ / stage
- rootse0
- Treatment
- application of Z-3-HACe0
- Outcome
- total length, surface area, and volume of the peanut rootse0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“application of Z-3-HAC increased the total length, surface area, and volume of the peanut roots under salinity stress”
Claim · model-written summary
Authors infer Z-3-HAC protects peanut seedlings from salinity damage through photosynthetic, antioxidant, osmotic and root changes.
- Taxon
- peanutArachis hypogaeae0
- Treatment
- Z-3-HACe0
- Outcome
- damage from salinity stresse0
- Qualifier
- modifications of photosynthetic apparatus, antioxidant systems, osmoregulation, and root morphologye0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Z-3-HAC protects peanut seedlings against damage from salinity stress through priming for modifications of photosynthetic apparatus, antioxidant systems, osmoregulation, and root morphology”
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