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Updated: Jun 20, 2026

A Colorimetric Method for Measuring Iron Content in Plants
Published on: September 7, 2018
The iron deficiency-induced phenolics secretion plays multiple important roles in plant iron acquisition underground
Chong Wei Jin1, Guang Yi You, Shao Jian Zheng
1State Key Laboratory of Plant Physiology and Biochemistry; College of Life Science.
Abstract:
In non-graminaceous monocots and dicots, phenolic compounds are frequently reported to be the main components of root exudates in response to Fe deficiency. We show that the phenolics secretion is an important part of a plant's adaptive strategy to Fe deficiency stress that encourages a reutilization of the considerable amounts of Fe normally stored and unavailable in the root apoplast. Besides, we also found that the secreted phenolics can selectively alter the soil microbial community, and the altered soil microbial community may in turn favor plant Fe acquisition by producing siderophores and auxins.
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