Polyamines: pleiotropic molecules regulating plant development and enhancing crop yield and quality

Author:

Yang Haishan123,Fang Yinyin123,Liang Zhiman123,Qin Tian123,Liu Ji‐Hong45ORCID,Liu Taibo123ORCID

Affiliation:

1. State Key Laboratory for Conservation and Utilization of Subtropical Agro‐bioresources South China Agricultural University Guangzhou China

2. Guangdong Provincial Key Laboratory for the Development Biology and Environmental Adaptation of Agricultural Organisms, College of Life Sciences South China Agricultural University Guangzhou China

3. Guangdong Laboratory for Lingnan Modern Agriculture Guangzhou China

4. National Key Laboratory for Germplasm Innovation & Utilization of Horticultural Crops, College of Horticulture and Forestry Sciences Huazhong Agricultural University Wuhan China

5. Hubei Hongshan Laboratory Wuhan China

Abstract

SummaryPolyamines (PAs) are pleiotropic bioorganic molecules. Cellular PA contents are determined by a balance between PA synthesis and degradation. PAs have been extensively demonstrated to play vital roles in the modulation of plant developmental processes and adaptation to various environmental stresses. In this review, the latest advances on the diverse roles of PAs in a range of developmental processes, such as morphogenesis, organogenesis, growth and development, and fruit ripening, are summarized and discussed. Besides, the crosstalk between PAs and phytohormones or other signalling molecules, including H2O2 and NO, involved in these processes is dwelled on. In addition, the attempts made to improve the yield and quality of grain and vegetable crops through altering the PA catabolism are enumerated. Finally, several other vital questions that remain unanswered are proposed and discussed. These include the mechanisms underlying the cooperative regulation of developmental processes by PAs and their interplaying partners like phytohormones, H2O2 and NO; PA transport for maintaining homeostasis; and utilization of PA anabolism/catabolism for generating high‐yield and good‐quality crops. This review aims to gain new insights into the pleiotropic role of PAs in the modulation of plant growth and development, which provides an alternative approach for manipulating and engineering valuable crop varieties that can be used in the future.

Funder

Natural Science Foundation of Guangdong Province

National Natural Science Foundation of China

Publisher

Wiley

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