Male poplars have a stronger ability to balance growth and carbohydrate accumulation than do females in response to a short-term potassium deficiency
文献类型：期刊论文
| 作者 | Yang, Yanni; Jiang, Hao; Wang, Maolin; Korpelainen, Helena; Li, Chunyang |
| 刊名 | PHYSIOLOGIA PLANTARUM
 |
| 出版日期 | 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 |
| 产权排序 | 1 |
| 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. |
| 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 |
| 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. |
入库方式： OAI收割
来源：成都生物研究所
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