Abstract
The apoplast and plant cells are inextricably linked,yet the response to drought stress within apoplast has rarely been reported.In this paper,the drought stress responses of apoplastic endogenous hormones in tender stems of three poplar species were studied by using MD-HPLC coupled technique.Four kinds of endogenous hormones in the apoplast of tender stems of living poplar which were dialyzed by microdialysis probe,i.e.benzylaminopurine(6-BA),gibberellic acid(GA 3),indole aceticacid(3-IAA),and abscisic acid(ABA),were then simultaneously determined by HPLC.The results show that drought stress has a significant effect on the content of endogenous hormones within the apoplast(P0.05).As the drought stress was intensified and lasting,the contents of GA 3,6-BA and 3-IAA obviously decreased while the content of ABA increased significantly(P0.01),meanwhile the contents of GA 3,6-BA,3-IAA and ABA has changed differently among poplar species.This paper has provided a new basis for study on physiological response mechanism to drought stress and it also provides a new method for the dynamically quantitative analysis of the apoplastic endogenous hormone in vivo.
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Claims 5
Claim · model-written summary
Drought significantly affected endogenous apoplastic hormone content.
- Organ / stage
- tender stemse1
- Treatment
- drought stresse0
- Outcome
- content of endogenous hormones within the apoplaste0
PopulusNot reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“drought stress has a significant effect on the content of endogenous hormones within the apoplast(P0.05)”
e1“tender stems of three poplar species”
Claim · model-written summary
GA 3, 6-BA and 3-IAA contents decreased as drought intensified and lasted.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“As the drought stress was intensified and lasting,the contents of GA 3,6-BA and 3-IAA obviously decreased”
e1“three poplar species”
Claim · model-written summary
ABA content rose significantly with more intense and prolonged drought.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“As the drought stress was intensified and lasting,the contents of GA 3,6-BA and 3-IAA obviously decreased while the content of ABA increased significantly(P0.01)”
e1“three poplar species”
Claim · model-written summary
The four hormone contents changed differently among poplar species.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“contents of GA 3,6-BA,3-IAA and ABA has changed differently among poplar species”
Claim · model-written summary
The coupled microdialysis and HPLC method determined four apoplastic hormones in living poplar stems.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Four kinds of endogenous hormones in the apoplast of tender stems of living poplar which were dialyzed by microdialysis probe,i.e.benzylaminopurine(6-BA),gibberellic acid(GA 3),indole aceticacid(3-IAA),and abscisic acid(ABA),were then simultaneously determined by HPLC”
The same questions in other papers
drought · molecular: metabolites · Populus (poplar)Positive and negative results
1 paper in the same direction as this paper · 4 in the opposite direction
- positive
- positive
- positive
2 papers more in this group
See all 6 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.