Abstract
通过防雨棚池栽试验,以不同花生品种为试材,研究了不同生育时期非充分灌溉对花生品种各生育期叶片膜脂过氧化、渗透调节物质含量和抗氧化酶活性的影响。结果表明,苗期和花针期灌水,叶片抗氧化酶活性、渗透调节物质和丙二醛(MDA)含量均有不同程度的降低。随生育期推进和土壤水分降低,其活性升高,但升幅因品种、抗氧化酶和渗透调节物质类型有异,两品种叶片超氧化物歧化酶(SOD)、过氧化氢酶(CAT)、可溶性糖(SS)、可溶性蛋白质(Pr)、游离氨基酸(AA)和脯氨酸(Pro)含量均以对水分最为敏感的花针期升幅较大,且花育27号的SOD、CAT、Pr和AA的升幅大于花育20号;结荚期灌水后,各抗氧化酶和渗透调节物质未表现降低。两品种全生育期灌水处理与苗期灌水处理间的抗氧化酶活性、渗透调节物质和MDA含量差异均不显著。水分胁迫初期,抗氧化酶活性升高,但随胁迫时间延长其活性明显降低;而渗透调节物质和MDA含量显著高于各生育期灌水处理。POD活性变化对灌水处理响应较弱,SOD和CAT是花生适应土壤水逆境的主要保护酶。灌水处理对花生叶片抗氧化及渗透调节能力表现为花针期>结荚期>苗期,各渗透物质调节能力依次表现为脯氨酸、可溶性蛋白质>可溶性糖>游离氨基酸。;Used a pool culture under rainproof, the effect of non-sufficient irrigation in different growth stages on leaf membrane lipid peroxidation, osmoregulation substances content and the protective enzyme activity of different peanut varieties were studied. The aim was to reveal the response mechanism of different peanut varieties to non-sufficient irrigation in different growth stages. The result showed that leaf protective enzyme activities, osmoregulation substances and malondialdehyde content reduced in different degrees after irrigation in seedling and flowering-pegging stages. Their activities increased with the growth of peanut and the reduction of soil moisture, but the increasing ranges were different because of peanut varieties, and kinds of protective enzymes or osmoregulation substances. The increasing range of leaf SOD, CAT, the content of soluble sugars, soluble proteins, free amino acids and proline of two varieties were larger in flowering-pegging stage, which is the most sensitive stage to water stress, than other stages. And the increasing range of leaf SOD, CAT, soluble proteins, and free amino acids content of Huayu 27 were larger than those of Huayu20. The protective enzymes activity and osmoregulation substances content were not reduced after irrigation in pod setting stage. The activity of protective enzymes and the osmoregulation substances content and MDA had no significantly difference between two varieties with irrigation in the whole growth stage and seedling stage. The activity of protective enzymes and the osmoregulation substances content and MDA in water stress under whole growth stage were increased significantly compared with irrigation treatment. The changing ranges of Huayu 27 were larger than those of Huayu22. The activity of POD was weakly affected by irrigation stage. SOD and CAT were the mostly protective enzymes of peanut to adapt to soil water stress.
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Claims 10
Claim · model-written summary
Irrigation at seedling and flowering pegging stages reduced protective enzymes, osmolytes and malondialdehyde.
- Taxon
- peanut
Arachis hypogaeae1 - Treatment
- irrigation in seedling and flowering-pegging stagese0
- Outcome
- leaf protective enzyme activities, osmoregulation substances and malondialdehyde contente0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“leaf protective enzyme activities, osmoregulation substances and malondialdehyde content reduced in different degrees after irrigation in seedling and flowering-pegging stages”
e1“different peanut varieties were studied”
Claim · model-written summary
Protective enzyme activities rose with growth and declining soil moisture.
- Taxon
- peanutArachis hypogaeae0
- Treatment
- reduction of soil moisturee0
- Outcome
- activitiese0
- Direction
- increasede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Their activities increased with the growth of peanut and the reduction of soil moisture”
Claim · model-written summary
SOD, CAT and four osmolyte contents increased more in flowering pegging than in other stages.
- Taxon
- peanutArachis hypogaeae1
- Organ / stage
- flowering-pegging stagee0
- Outcome
- increasing range of leaf SOD, CAT, the content of soluble sugars, soluble proteins, free amino acids and prolinee0
- Direction
- largere0
- Comparator
- other stagese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The increasing range of leaf SOD, CAT, the content of soluble sugars, soluble proteins, free amino acids and proline of two varieties were larger in flowering-pegging stage, which is the most sensitive stage to water stress, than other stages”
e1“different peanut varieties were studied”
Claim · model-written summary
Huayu 27 had larger SOD, CAT, soluble protein and amino acid increases than Huayu20.
- Taxon
- peanutArachis hypogaeae1
- Material
- Huayu 27e0
- Outcome
- increasing range of leaf SOD, CAT, soluble proteins, and free amino acids contente0
- Direction
- largere0
- Comparator
- Huayu20e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the increasing range of leaf SOD, CAT, soluble proteins, and free amino acids content of Huayu 27 were larger than those of Huayu20”
e1“different peanut varieties were studied”
Claim · model-written summary
Irrigation at pod setting did not reduce protective enzyme activity or osmolyte content.
- Taxon
- peanutArachis hypogaeae1
- Treatment
- irrigation in pod setting stagee0
- Outcome
- protective enzymes activity and osmoregulation substances contente0
- Direction
- not reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The protective enzymes activity and osmoregulation substances content were not reduced after irrigation in pod setting stage”
e1“different peanut varieties were studied”
Claim · model-written summary
Whole stage and seedling stage irrigation did not significantly differ in protective enzymes, osmolytes or MDA.
- Taxon
- peanutArachis hypogaeae1
- Treatment
- irrigation in the whole growth stagee0
- Outcome
- activity of protective enzymes and the osmoregulation substances content and MDAe0
- Direction
- no significantly differencee0
- Comparator
- seedling stagee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The activity of protective enzymes and the osmoregulation substances content and MDA had no significantly difference between two varieties with irrigation in the whole growth stage and seedling stage”
e1“different peanut varieties were studied”
Claim · model-written summary
Whole growth stage water stress significantly increased protective enzyme activity, osmolytes and MDA versus irrigation.
- Taxon
- peanutArachis hypogaeae1
- Treatment
- water stress under whole growth stagee0
- Outcome
- activity of protective enzymes and the osmoregulation substances content and MDAe0
- Direction
- increasede0
- Comparator
- irrigation treatmente0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The activity of protective enzymes and the osmoregulation substances content and MDA in water stress under whole growth stage were increased significantly compared with irrigation treatment”
e1“different peanut varieties were studied”
Claim · model-written summary
The English text reports larger changes in Huayu 27 than Huayu22.
- Taxon
- peanutArachis hypogaeae1
- Material
- Huayu 27e0
- Outcome
- changing rangese0
- Direction
- largere0
- Comparator
- Huayu22e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The changing ranges of Huayu 27 were larger than those of Huayu22”
e1“different peanut varieties were studied”
Claim · model-written summary
POD activity responded weakly to irrigation stage.
- Taxon
- peanutArachis hypogaeae1
- Treatment
- irrigation stagee0
- Outcome
- activity of PODe0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The activity of POD was weakly affected by irrigation stage”
e1“different peanut varieties were studied”
Claim · model-written summary
The authors identify SOD and CAT as principal protective enzymes for peanut water stress adaptation.
- Taxon
- peanutArachis hypogaeae0
- Gene
- SOD and CATe0
- Outcome
- adapt to soil water stresse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“SOD and CAT were the mostly protective enzymes of peanut to adapt to soil water stress”
The same questions in other papers
irrigation · physiology: oxidative · Arachis hypogaea (peanut)Positive and negative results
2 papers in the same direction as this paper · 1 in the opposite direction
- positive
- 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.