Ethylene Participates in the Regulation of Fe Deficiency Responses in Strategy I Plants and in Rice.

ABSTRACT: Iron (Fe) is very abundant in most soils but its availability for plants is low, especially in calcareous soils. Plants have been divided into Strategy I and Strategy II species to acquire Fe from soils. Strategy I species apply a reduction-based uptake system which includes all higher plants except the Poaceae. Strategy II species apply a chelation-based uptake system which includes the Poaceae. To cope with Fe deficiency both type of species activate several Fe deficiency responses, mainly in their roots. These responses need to be tightly regulated to avoid Fe toxicity and to conserve energy. Their regulation is not totally understood but some hormones and signaling substances have been implicated. Several years ago it was suggested that ethylene could participate in the regulation of F

SUBMITTER: Lucena C 

PROVIDER: S-EPMC4661236 | biostudies-literature | 2015

REPOSITORIES: biostudies-literature