IMHE OpenIR  > 山地表生过程与生态调控重点实验室
Sexually differential tolerance to water deficiency of Salix paraplesia-A female-biased alpine willow
Liao, Jun1,2; Song, Haifeng1,2; Tang, Duoteng3; Zhang, Sheng3
Corresponding AuthorZhang, Sheng(shengzhang@scu.edu.cn)
2019-08-01
Source PublicationECOLOGY AND EVOLUTION
ISSN2045-7758
Volume9Issue:15Pages:8450-8464
AbstractSalicaceae plants are dioecious woody plants. Previous studies have shown that male individuals are more tolerant to water deficiency than females for male-biased poplars. However, Salix paraplesia is a female-biased species in nature. It is still unknown whether female willows are more tolerant to drought stress than males. To better understand the sexually different tolerance to water deficiency in willows, a greenhouse experiment combined with a field investigation was conducted, and physiological traits were tested in male and female S. paraplesia under a drought-stressed condition (50% of soil water capacity). Our field investigation showed that S. paraplesia was a species with female-biased sex ratio along altitude gradients (2,400 m, 2,600 m and 2,800 m) in their natural habitats. Our results showed that the height growth, biomass accumulation, total chlorophyll pigment content (TChl), and the net photosynthetic rate were higher in female willows than in males at the low and middle altitudes (2,400 m and 2,600 m) rather than at a high altitude (2,800 m) under well-watered conditions. Under drought-stressed conditions, the growth, biomass, and photosynthesis were greatly inhibited in both sexes, while females showed higher biomass and TChl content and suffered less negative effects than did males. Particularly, females that originated from a high altitude showed lower leaf relative electrolyte leakage, malondialdehyde content, and less disorder of chloroplast ultrastructures but a higher peroxidase activity (POD) than that of males. Therefore, S. paraplesia females exhibited a better drought tolerance and self-protective ability than males from high altitude. There is a reason to speculate that the population structure of S. paraplesia at a high altitude would be likely to further female biases with the increased drought intensity in the alpine regions.
Keywordalpine dioecy drought sex ratio willow
DOI10.1002/ece3.5175
Indexed BySCI
WOS KeywordSEX-SPECIFIC RESPONSES ; POPULUS-CATHAYANA ; DIOECIOUS PLANTS ; CLIMATE-CHANGE ; GAS-EXCHANGE ; DROUGHT ; PATTERNS ; ALTITUDE ; GROWTH ; SHRUB
Language英语
Funding ProjectNational Natural Science Foundation of China[31770650] ; National Natural Science Foundation of China[XDA20020401] ; Chinese Academy of Sciences ; Fundamental Research Funds for Central Universities
WOS Research AreaEnvironmental Sciences & Ecology ; Evolutionary Biology
WOS SubjectEcology ; Evolutionary Biology
WOS IDWOS:000478481200001
Funding OrganizationNational Natural Science Foundation of China ; Chinese Academy of Sciences ; Fundamental Research Funds for Central Universities
PublisherWILEY
Citation statistics
Document Type期刊论文
Identifierhttp://ir.imde.ac.cn/handle/131551/26775
Collection山地表生过程与生态调控重点实验室
Corresponding AuthorZhang, Sheng
Affiliation1.Chinese Acad Sci, Inst Mt Hazards & Environm, Key Lab Mt Surface Proc & Ecol Regulat, Chengdu, Sichuan, Peoples R China
2.Univ Chinese Acad Sci, Beijing, Peoples R China
3.Sichuan Univ, Coll Life Sci, Key Lab Bioresource & Ecoenvironm, Minist Educ, Chengdu, Sichuan, Peoples R China
First Author Affilication中国科学院水利部成都山地灾害与环境研究所
Recommended Citation
GB/T 7714
Liao, Jun,Song, Haifeng,Tang, Duoteng,et al. Sexually differential tolerance to water deficiency of Salix paraplesia-A female-biased alpine willow[J]. ECOLOGY AND EVOLUTION,2019,9(15):8450-8464.
APA Liao, Jun,Song, Haifeng,Tang, Duoteng,&Zhang, Sheng.(2019).Sexually differential tolerance to water deficiency of Salix paraplesia-A female-biased alpine willow.ECOLOGY AND EVOLUTION,9(15),8450-8464.
MLA Liao, Jun,et al."Sexually differential tolerance to water deficiency of Salix paraplesia-A female-biased alpine willow".ECOLOGY AND EVOLUTION 9.15(2019):8450-8464.
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