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Responses to Salt Stress

Responses to Salt Stress

Salt stress—which can be triggered by high salt concentrations in a plant’s environment—can significantly affect plant growth and crop production by influencing photosynthesis and the absorption of water and nutrients.

Short-distance Transport of Resources

Short-distance Transport of Resources

Short-distance transport refers to transport that occurs over a distance of just 2-3 cells, crossing the plasma membrane in the process. Small uncharged molecules, such as oxygen, carbon dioxide, and water, can diffuse across the plasma membrane on their own. In contrast, ions and larger molecules require the assistance of transport proteins due to their charge or size. Transport across membranes also occurs within individual cells, playing a variety of essential roles for the plant as a whole.

Tonicity in Plants

Tonicity in Plants

Tonicity describes the capacity of a cell to lose or gain water. It depends on the quantity of solute that does not penetrate the membrane. Tonicity delimits the magnitude and direction of osmosis and results in three possible scenarios that alter the volume of a cell: hypertonicity, hypotonicity, and isotonicity. Due to differences in structure and physiology, tonicity of plant cells is different from that of animal cells in some scenarios.

Tonicity in Plants

Tonicity in Plants

Plant cells maintain appropriate osmotic balance in extreme conditions. For instance, plants in dry environments store water in vacuoles, limit the opening of their stoma, and have thick, waxy cuticles to prevent unnecessary water loss. Some species of plants that live in salty environments store salt in their roots. As a result, water osmosis occurs in the root from the surrounding soil.
Tonicity
Tonicity describes the capacity of a cell to lose or gain water depending on the solute...

Cell Signaling in Plants

Cell Signaling in Plants

Plant cells communicate to coordinate their cycle of growth, flowering and fruiting, and activities in roots, shoots, and leaves in response to the changing environmental conditions. Plant signaling is distinct from animal signaling. Plants primarily utilize enzyme-linked receptors, whereas the largest class of cell-surface receptors in animals are G-protein coupled receptors (GPCRs). Unlike animals, receptor tyrosine kinases are rare in plants. Instead, plants have a diverse class of...

Overview of Metabolism

Overview of Metabolism

Living cells constantly carry out various chemical reactions which are necessary for their proper functioning. These reactions are interlinked to one another via multiple pathways. The collection of these chemical reactions is known as metabolism.
Plant Metabolism
Sunlight, the primary source of energy in plants, is first absorbed by the chlorophyll pigments present in their leaves. Plants then use this energy to carry out photosynthesis, where water is oxidized into oxygen and carbon dioxide...

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Related Experiment Video

Updated: Jan 17, 2026

Construction and Testing of Coin Cells of Lithium Ion Batteries

Construction and Testing of Coin Cells of Lithium Ion Batteries

Published on: August 2, 2012

Lithium in plants.

Sebastian Garcia-Daga^1,2, Sina Fischer², Matthew Gilliham¹

¹School of Agriculture, Food and Wine, Waite Research Institute & ARC Centre of Excellence in Plants for Space, University of Adelaide, Urrbrae, SA, 5064, Australia.

The New Phytologist

|September 22, 2025

Summary

This summary is machine-generated.

Lithium (Li+) has unknown physiological roles in plants, differing from sodium (Na+) in transport and toxicity. Understanding plant lithium interactions offers new avenues for phytoremediation and biofortification.

Keywords:

ROS ion homeostasis ion toxicity lithium lithium transport phytoremediation plant nutrition salinity salinity stress trace elements

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Last Updated: Jan 17, 2026

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1,3,5-Triphenylbenzene and Corannulene as Electron Receptors for Lithium Solvated Electron Solutions

1,3,5-Triphenylbenzene and Corannulene as Electron Receptors for Lithium Solvated Electron Solutions

Published on: October 10, 2016

Area of Science:

Plant Physiology
Biochemistry
Environmental Science

Background:

Lithium (Li+) presence in plants is common but its physiological significance is largely unknown.
Traditionally, Li+ was thought to use sodium (Na+) transport pathways, but evidence suggests distinct mechanisms.
Li+ exhibits unique effects on reactive oxygen species and can displace magnesium (Mg2+) from enzymes.

Purpose of the Study:

To review the current understanding of Li+ transport and molecular interactions in plants.
To highlight knowledge gaps and emerging concepts regarding Li+ in plant biology.
To explore potential biotechnological applications of plant Li+ interactions.

Main Methods:

Literature review synthesizing existing research on Li+ in plants.
Analysis of Li+ transport mechanisms, including potential specific transporters.
Examination of Li+ molecular interactions with enzymes and nucleic acids.

Main Results:

Evidence challenges the notion of shared transport pathways between Li+ and Na+.
Li+ exhibits unique toxicity responses and molecular interactions distinct from Na+.
Li+ can displace essential cations like Mg2+ and interact with nucleic acids.

Conclusions:

Plant Li+ physiology is complex and not fully explained by Na+ analogies.
Further research is needed to elucidate Li+ transport and molecular targets in plants.
Understanding plant Li+ interactions can lead to applications in phytoremediation, waste recycling, and biofortification.