Radiochemical studies using 59Fe and 35S provide evidence for iron-regulated uptake of sulfur in wheat

被引：2

作者：

Sharma, Vasundhara ^{[1
]}

Anand, Anjali ^{[1
]}

Singh, Bhupinder ^{[2
]}

机构：

[1] Indian Agr Res Inst, ICAR, Div Plant Physiol, New Delhi, India

[2] Indian Agr Res Inst, ICAR, CESCRA, Nucl Res Lab, New Delhi, India

来源：

JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY | 2020年 / 323卷 / 01期

关键词：

Radiotracer; S-35; Fe-59; Zinc; Manganese; Wheat; Phytosiderophore; FE-DEFICIENCY; ASSIMILATION PATHWAY; GAMMA-IRRADIATION; NUTRITION; RELEASE; PLANTS; PHYTOSIDEROPHORES; ACCUMULATION; CHLOROPHYLL; METABOLISM;

D O I：

10.1007/s10967-019-06906-x

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

Iron (Fe) and sulfur (S) interaction was studied in bread and durum wheat by using radiotracers (Fe-59 and S-35). The results showed a higher uptake of S-35 under Fe+ than Fe- which provides irrefutable evidence for the role of Fe in determining plant S uptake particularly under S deficiency. Under Fe deficiency, the Fe-59 uptake was higher under the S2 than S1 and S0 condition, which may be attributed to a favorable regulation of phytosiderophores biosynthesis by S. This suggests that Fe and S synergistically interact and may regulate their respective uptake by inducing SULTR1; 1, high affinity sulphate transporters.

引用

页码：291 / 301

页数：11