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Sex-specific responses and tolerances of Populus cathayana to salinity.
Physiol Plant. 2010 Oct; 140(2):163-73.PP

Abstract

Responses of males and females to salinity were studied in order to reveal sex-specific adaptation and evolution in Populus cathayana Rehd cuttings. This dioecious tree species plays an important role in maintaining ecological stability and providing commercial raw material in southwest China. Female and male cuttings of P. cathayana were treated for about 1 month with 0, 75 and 150 mM NaCl. Plant growth traits, gas exchange parameters, chlorophyll pigments, intrinsic water use efficiency (WUEi), membrane system injuries, ion transport and ultrastructural morphology were assessed and compared between sexes. Salt stress caused less negative effects on the dry matter accumulation, growth rate of height, growth rate of stem base diameter, total number of leaves and photosynthetic abilities in males than in females. Relative electrolyte leakage increased more in females than in males under salinity stress. Soil salinity reduced the amounts of leaf chlorophyll a, chlorophyll b and total chlorophyll, and the chlorophyll a/b ratio more in females than in males. WUEi decreased in both sexes under salinity. Regarding the ultrastructural morphology, thylakoid swelling in chloroplasts and degrading structures in mitochondria were more frequent in females than in males. Moreover, females exhibited significantly higher Na(+) and Cl(-) concentrations in leaves and stems, but lower concentrations in roots than did males under salinity. In all, female cuttings of P. cathayana are more sensitive to salinity stress than males, which could be partially due to males having a better ability to restrain Na(+) transport from roots to shoots than do females.

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Publisher Full Text (DOI)

Authors+Show Affiliations

Chen F
Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu, China.
Chen L
No affiliation info available
Zhao H
No affiliation info available
Korpelainen H
No affiliation info available
Li C
No affiliation info available

MeSH

Cell NucleolusChloridesChlorophyllChloroplastsMicroscopy, Electron, TransmissionMitochondriaOxygen ConsumptionPhotosynthesisPlant LeavesPlant StemsPopulusReproductionSalinitySalt ToleranceSalt-Tolerant PlantsSodiumSodium ChlorideThylakoids

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

20561244

Citation

Chen, Fugui, et al. "Sex-specific Responses and Tolerances of Populus Cathayana to Salinity." Physiologia Plantarum, vol. 140, no. 2, 2010, pp. 163-73.
Chen F, Chen L, Zhao H, et al. Sex-specific responses and tolerances of Populus cathayana to salinity. Physiol Plant. 2010;140(2):163-73.
Chen, F., Chen, L., Zhao, H., Korpelainen, H., & Li, C. (2010). Sex-specific responses and tolerances of Populus cathayana to salinity. Physiologia Plantarum, 140(2), 163-73. https://doi.org/10.1111/j.1399-3054.2010.01393.x
Chen F, et al. Sex-specific Responses and Tolerances of Populus Cathayana to Salinity. Physiol Plant. 2010;140(2):163-73. PubMed PMID: 20561244.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Sex-specific responses and tolerances of Populus cathayana to salinity. AU - Chen,Fugui, AU - Chen,Lianghua, AU - Zhao,Hongxia, AU - Korpelainen,Helena, AU - Li,Chunyang, PY - 2010/6/22/entrez PY - 2010/6/22/pubmed PY - 2011/3/3/medline SP - 163 EP - 73 JF - Physiologia plantarum JO - Physiol Plant VL - 140 IS - 2 N2 - Responses of males and females to salinity were studied in order to reveal sex-specific adaptation and evolution in Populus cathayana Rehd cuttings. This dioecious tree species plays an important role in maintaining ecological stability and providing commercial raw material in southwest China. Female and male cuttings of P. cathayana were treated for about 1 month with 0, 75 and 150 mM NaCl. Plant growth traits, gas exchange parameters, chlorophyll pigments, intrinsic water use efficiency (WUEi), membrane system injuries, ion transport and ultrastructural morphology were assessed and compared between sexes. Salt stress caused less negative effects on the dry matter accumulation, growth rate of height, growth rate of stem base diameter, total number of leaves and photosynthetic abilities in males than in females. Relative electrolyte leakage increased more in females than in males under salinity stress. Soil salinity reduced the amounts of leaf chlorophyll a, chlorophyll b and total chlorophyll, and the chlorophyll a/b ratio more in females than in males. WUEi decreased in both sexes under salinity. Regarding the ultrastructural morphology, thylakoid swelling in chloroplasts and degrading structures in mitochondria were more frequent in females than in males. Moreover, females exhibited significantly higher Na(+) and Cl(-) concentrations in leaves and stems, but lower concentrations in roots than did males under salinity. In all, female cuttings of P. cathayana are more sensitive to salinity stress than males, which could be partially due to males having a better ability to restrain Na(+) transport from roots to shoots than do females. SN - 1399-3054 UR - https://www.unboundmedicine.com/medline/citation/20561244/Sex_specific_responses_and_tolerances_of_Populus_cathayana_to_salinity_ L2 - https://doi.org/10.1111/j.1399-3054.2010.01393.x DB - PRIME DP - Unbound Medicine ER -