Differential expression of specific sulphate transporters underlies seasonal and spatial patterns of sulphate allocation in trees.

Differential expression of specific sulphate transporters underlies seasonal and spatial patterns of sulphate allocation in trees.
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特定硫酸盐转运蛋白的差异表达是树木中硫酸盐分配的季节和空间模式的基础

DOI:
10.1111/pce.12058
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发表时间:
2013
期刊:
Plant, cell & environment
影响因子:
--
通讯作者:
C. Herschbach
C. Herschbach
中科院分区:
--
文献类型:
--
作者:
F. Malcheska;A. Honsel;H. Wildhagen;J. Dürr;C. Larich;H. Rennenberg;C. Herschbach

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植物对硫酸盐的吸收和分布取决于不同硫酸盐转运体(SULTR)的活性。在树木等长期生存的落叶植物中,空间模式的季节性变化增加了另一个复杂的问题,即不同转运体的相互作用如何根据环境变化调整植物内S的分布。杨树是一个很好的模型来解决这个问题,因为它的S代谢已经很好地描述了。在本研究中,通过分析SULTRs的基因表达与木材和木质部汁液中硫酸盐含量的关系,研究了SULTRs在杨树(P.tremula×P. alba)木材中对季节性硫酸盐储存和动员的重要性。根据这些结果,提出了相应的SULTRs在木材中季节性储存和活化硫酸盐的可能功能。综上所述,本研究结果补充了先前发表的季节硫酸盐在树叶和树皮之间循环的模型,并为未来全树硫酸盐通量的机械模拟提供了信息。
Sulphate uptake and its distribution within plants depend on the activity of different sulphate transporters (SULTR). In long‐living deciduous plants such as trees, seasonal changes of spatial patterns add another layer of complexity to the question of how the interplay of different transporters adjusts S distribution within the plant to environmental changes. Poplar is an excellent model to address this question because its S metabolism is already well characterized. In the present study, the importance of SULTRs for seasonal sulphate storage and mobilization was examined in the wood of poplar (Populus tremula×P. alba) by analysing their gene expression in relation to sulphate contents in wood and xylem sap. According to these results, possible functions of the respective SULTRs for seasonal sulphate storage and mobilization in the wood are suggested. Together, the present results complement the previously published model for seasonal sulphate circulation between leaves and bark and provide information for future mechanistic modelling of whole tree sulphate fluxes.
DOI: 10.1104/pp.124.1.461
发表时间: 2000-09-01
期刊: PLANT PHYSIOLOGY
影响因子: 7.4
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DOI: --
发表时间: 1994
期刊:
影响因子: --
作者:
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DOI: 10.1093/nar/22.22.4673
发表时间: 1994-11-11
影响因子: 14.9
作者:
THOMPSON, JD;HIGGINS, DG;GIBSON, TJ
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