Roles of chemical signals in regulation of the adaptive responses to iron deficiency.
Iron is an essential micronutrient for plants but is not readily accessible in most calcareous soils. Although the adaptive responses of plants to iron deficiency have been well documented, the signals involved in the regulatory cascade leading to their activation are not well understood to date. Recent studies revealed that chemical compounds, including sucrose, auxin, ethylene and nitric oxide, positively regulated the Fe-deficiency-induced Fe uptake processes in a cooperative manner. Nevertheless, cytokinins, jasmonate and abscisic acid were shown to act as negative signals in transmitting the iron deficiency information. The present mini review is to briefly address the roles of chemical signals in regulation of the adaptive responses to iron deficiency based on the literatures published in recent years.
a Ministry of Education Key Laboratory of Environmental Remediation and Ecosystem Health, College of Natural Resources and Environmental Science, Zhejiang University , Hangzhou , China.
Xing Xing
XX
Liu
a Ministry of Education Key Laboratory of Environmental Remediation and Ecosystem Health, College of Natural Resources and Environmental Science, Zhejiang University , Hangzhou , China.
Xiao Lin
XL
He
a Ministry of Education Key Laboratory of Environmental Remediation and Ecosystem Health, College of Natural Resources and Environmental Science, Zhejiang University , Hangzhou , China.
Chong Wei
CW
Jin
D000222:Adaptation, Physiological; D007210:Indoleacetic Acids / Q000378:metabolism; D000090463:Iron Deficiencies; D008954:Models, Biological; D015398:Signal Transduction
D007210:Indoleacetic Acids
Auxin; Iron deficiency; ethylene; nitric oxide; sucrose