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Male poplars have a stronger ability to balance growth and carbohydrate accumulation than do females in response to a short-term potassium deficiency
Yang, Yanni1,2; Jiang, Hao3; Wang, Maolin2; Korpelainen, Helena4; Li, Chunyang3
Corresponding AuthorLi, Chunyang
2015
Source PublicationPHYSIOLOGIA PLANTARUM
ISSN0031-9317
EISSN1399-3054
Volume155Issue:4Pages:400-413
SubtypeArticle
AbstractPotassium (K) deficiency influences plant performance, such as ion uptake and carbohydrate transport. However, little is known about differences between males and females in response to K deficiency. In this study, dry matter accumulation, photosynthetic capacity, allocation patterns of K+, Na+ and carbohydrates, and ultrastructural changes in males and females of Populus cathayana exposed to K deficiency were investigated. The results indicated that males maintained a significantly higher K+ content and K+/Na+ ratio in leaves and stems than did females under K deficiency. Moreover, K deficiency significantly increased the sucrose content of females, whereas no significant effect on males was detected. In addition, a comparative analysis showed that males allocated more resources to roots, while females allocated more to leaves, which resulted in sexually different root/shoot (R/S) ratios. Transmission electron microscopic (TEM) observations showed that males suffered fewer injuries than did females. These results suggested that males have a better ability to cope with K deficiency. In addition, the combined effects of salinity and K deficiency on poplars were studied. The results indicated that salt stress aggravates the negative effects caused by K deficiency. Taken together, our study provided evidence for gender-specific strategies in ion and carbohydrate allocation in poplars exposed to a short-term K deficiency. In leaves and stems, the lower K+ accumulation inhibited sucrose translocation and resulted in a decreased R/S ratio, which may contribute to males having a stronger ability to balance growth and carbohydrate accumulation when compared with females.
KeywordHordeum-vulgare l
WOS HeadingsScience & Technology ; Life Sciences & Biomedicine
DOI10.1111/ppl.12325
WOS Subject ExtendedPlant Sciences
Indexed BySCI
WOS KeywordPLANT SALT TOLERANCE ; HORDEUM-VULGARE L. ; POPULUS-CATHAYANA ; SALINITY TOLERANCE ; SEXUAL DIFFERENCES ; DROUGHT STRESS ; NA+ TRANSPORT ; K+ TRANSPORT ; CHLOROPLAST ULTRASTRUCTURE ; MAGNESIUM-DEFICIENCY
Language英语
Quartile3区
TOP
WOS SubjectPlant Sciences
WOS IDWOS:000367687300004
Funding OrganizationNational Key Basic Research Program of China(2012CB416901) ; Institute of Mountain Hazards and Environment(SDSQB-2012-02)
Citation statistics
Cited Times:13[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imde.ac.cn/handle/131551/14163
Collection山地表生过程与生态调控重点实验室
Affiliation1.Chinese Acad Sci, Chengdu Inst Biol, Chengdu 610041, Peoples R China
2.Sichuan Univ, Coll Life Sci, Key Lab Bioresources & Ecoenvironm, Minist Educ, Chengdu 610064, Peoples R China
3.Chinese Acad Sci, Inst Mt Hazards & Environm, Key Lab Mt Surface Proc & Ecol Regulat, Chengdu 610041, Peoples R China
4.Univ Helsinki, Dept Agr Sci, Helsinki, Finland
Recommended Citation
GB/T 7714
Yang, Yanni,Jiang, Hao,Wang, Maolin,et al. Male poplars have a stronger ability to balance growth and carbohydrate accumulation than do females in response to a short-term potassium deficiency[J]. PHYSIOLOGIA PLANTARUM,2015,155(4):400-413.
APA Yang, Yanni,Jiang, Hao,Wang, Maolin,Korpelainen, Helena,&Li, Chunyang.(2015).Male poplars have a stronger ability to balance growth and carbohydrate accumulation than do females in response to a short-term potassium deficiency.PHYSIOLOGIA PLANTARUM,155(4),400-413.
MLA Yang, Yanni,et al."Male poplars have a stronger ability to balance growth and carbohydrate accumulation than do females in response to a short-term potassium deficiency".PHYSIOLOGIA PLANTARUM 155.4(2015):400-413.
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