Male poplars have a stronger ability to balance growth and carbohydrate accumulation than do females in response to a short-term potassium deficiency

CORC > 成都山地灾害与环境研究所 > 中国科学院水利部成都山地灾害与环境研究所 > 山地表生过程与生态调控重点实验室

	Male poplars have a stronger ability to balance growth and carbohydrate accumulation than do females in response to a short-term potassium deficiency
	Yang, Yanni 1,2; Jiang, Hao3 ; Wang, Maolin 2; Korpelainen, Helena 4; Li, Chunyang3
刊名	PHYSIOLOGIA PLANTARUM
	2015-12-01
卷号	155 期号:4 页码:400-413
关键词	HORDEUM-VULGARE L
ISSN号	0031-9317
通讯作者	Li, Chunyang
英文摘要	Potassium (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.
WOS标题词	Science & Technology ; Life Sciences & Biomedicine
类目[WOS]	Plant Sciences
研究领域[WOS]	Plant Sciences
关键词[WOS]	PLANT SALT TOLERANCE ; HORDEUM-VULGARE L. ; POPULUS-CATHAYANA ; SALINITY TOLERANCE ; SEXUAL DIFFERENCES ; DROUGHT STRESS ; NA+ TRANSPORT ; K+ TRANSPORT ; CHLOROPLAST ULTRASTRUCTURE ; MAGNESIUM-DEFICIENCY
收录类别	SCI
语种	英语
WOS记录号	WOS:000367687300004
内容类型	期刊论文
源URL	[http://ir.imde.ac.cn/handle/131551/14163]
专题	成都山地灾害与环境研究所_山地表生过程与生态调控重点实验室
作者单位	1.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
推荐引用方式 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.