Different Impacts of Ni²⁺ and Li⁺ to Plants and Mycorrhiza Systems

Roles of Bioligands Forming Metal-Binding Complexes in Cells and Apoplasts

authored by

Masahiro Inouhe, Yui Katsuta, Aki Kato, Hirotaka Kato, Yoh Sakuma, Clemens Walther, Veenu Joon, Dharmendra K. Gupta

Abstract

Water uptake and nutritious mineral utilisation via roots from the soil are the critical requirements for terrestrial plants that have evolved as the major host organisms on the grove of Earth, autotrophically nourishing animals, fungi and many other heterotrophic organisms and continuing to play a crucial role in forming the landscapes of the planet’s biosphere. Minerals taken up from the ground return to the earth via food chains and biome networks through the actions of consumers and decomposers. Through the cyclic usage of inorganic and organic resources, plants and their associates sustain and develop as whole communities. In this chapter, based on such a co-association, or co-evolution, concept, the important interactions between autotrophic plants and the coordinative or competitional fungi and microbes are discussed and emphasised, especially in relation to plant stresses caused by excess levels of Li+ and Ni2+ ions in land environments. Li and Ni are gathering more attention, as well as cobalt (Co), because of their importance as very useful elements in industrial activities and sustainable energy for people in the future; however, their use is also accompanied by the incidental threat and concern about their possible increases through release and contamination into land and other environments. Li belongs to the group of relatively abundant alkaline metals (light metals), and Ni is one of the rare and micro-elementary heavy metals. Although their differential and unique impacts on plants and fungi are known, their combinational effects are not well known, so it will be necessary to address the increasing risks in the near future. In this chapter, the existing evidence will be substantiated with details about their bindings and localisations with different bioligands and polymers in the cells of plants or fungi. Taken together, we discuss the importance of complex binding and detoxification systems in plants and the symbiotic associates under combined stresses caused by the two metals as well as others.

Organisation(s)

Centre for Radiation Protection and Radioecology

External Organisation(s)

Ehime University
Ministry of Environment, Forest and Climate Change
Ministry of Environment, Forest and Climate Change India

Type

Contribution to book/anthology

Pages

139-169

No. of pages

31

Publication date

03.2024

Publication status

Published

Peer reviewed

Yes

ASJC Scopus subject areas

General Engineering, General Environmental Science

Electronic version(s)

https://doi.org/10.1142/9789811283123_0006 (Access: Closed)