Endosperm: thermal sensor and regulator of seed thermoinhibition

Rahul Michael; Shagun Bali; Ritu Godara; Vivek Dogra

doi:10.1016/j.tplants.2023.06.017

Endosperm: thermal sensor and regulator of seed thermoinhibition

Trends Plant Sci. 2023 Nov;28(11):1201-1204. doi: 10.1016/j.tplants.2023.06.017. Epub 2023 Jul 3.

Authors

Rahul Michael¹, Shagun Bali¹, Ritu Godara², Vivek Dogra³

Affiliations

¹ Biotechnology Division, CSIR-Institute of Himalayan Bioresource Technology, Palampur 176061, India.
² Biotechnology Division, CSIR-Institute of Himalayan Bioresource Technology, Palampur 176061, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India.
³ Biotechnology Division, CSIR-Institute of Himalayan Bioresource Technology, Palampur 176061, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India. Electronic address: vivekdogra@ihbt.res.in.

PMID: 37407410
DOI: 10.1016/j.tplants.2023.06.017

Abstract

Seed thermoinhibition protects emerging seedlings from thermodamage by preventing seed germination at elevated temperatures. It had remained unknown how a seed fine-tunes its germination in response to temperature. Recently, Piskurewicz et al. demonstrated that endosperm phyB senses increased temperature, thereby facilitating PIF3-mediated abscisic acid (ABA) accumulation to inhibit germination and embryo elongation.

Keywords: future warming climate; seed germination; seedling establishment; thermoinhibition; thermosensor.