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

	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; Jiang, Hao; Wang, Maolin; Korpelainen, Helena; Li, Chunyang
刊名	PHYSIOLOGIA PLANTARUM
	2015
卷号	155 期号:4 页码:400-413
关键词	PLANT SALT TOLERANCE HORDEUM-VULGARE L. POPULUS-CATHAYANA SALINITY TOLERANCE SEXUAL DIFFERENCES DROUGHT STRESS NA+ TRANSPORT K+ TRANSPORT CHLOROPLAST ULTRASTRUCTURE MAGNESIUM-DEFICIENCY
通讯作者	Li, CY (reprint author), Chinese Acad Sci, Inst Mt Hazards & Environm, Key Lab Mt Surface Proc & Ecol Regulat, Chengdu 610041, Peoples R China.
产权排序	1
合作状况	国际
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.
学科主题	Plant Sciences
类目[WOS]	Plant Sciences
语种	英语
内容类型	期刊论文
源URL	[http://210.75.237.14/handle/351003/27480]
专题	成都生物研究所_生态研究
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.