K+ Uptake, H+-ATPase pumping activity and Ca2+ efflux mechanism are involved in drought tolerance of barley
详细信息 查看全文
- 作者：Xue Feng ; Wenxing Liu ; Fanrong Zeng ; Zhonghua Chen ; Guoping Zhang ; Feibo Wu ; wufeibo@zju.edu.cn" class="auth_mail" title="E-mail the corresponding author
- 关键词：BSM ; basal salts medium ; BNS ; basal nutrient solution ; BSA ; bovine serum albumin ; PCD ; programmed cell death ; [Ca2+]cyt ; cytosolic free Ca2+ ; Fv/Fm ; maximal photochemical efficiency ; HKTs ; Na+/K+ symporters ; KOR ; outward rectifying K+ ; H+/K+ ; symporters ; MIFE ; non-invasive microelectrode ion flux ; OH ; hydroxyl radicals ; PAs ; synergistic effects of polyamines ; Pn ; net photosynthetic rate ; ROS ; reactive oxygen species ; SMC ; soil moisture content ; T-AOC ; total antioxidative capacity
- 刊名：Environmental and Experimental Botany
- 出版年：2016
- 出版时间：September 2016
- 年：2016
- 卷：129
- 期：Complete
- 页码：57-66
- 全文大小：1439 K
文摘
- •
Transient and steady-state ion fluxes were measured by MIFE technique.
- •
Tibetan wild barley XZ5 showed more tolerant to drought than cv Tadmor and ZJU9.
- •
XZ5 showed the least Ca2+ efflux and H+ alteration under drought over Tadmor/ZJU9.
- •
XZ5 recorded the highest K+ uptake in root epidermis and leaf mesophyll in drought.
- •
K+ uptake, leaf H+ influx/alkalization of apoplastic pH be a chemical signal for barley drought response.