Related Experiment Video
Updated: Jan 17, 2026
11:27
A Flexible Low Cost Hydroponic System for Assessing Plant Responses to Small Molecules in Sterile Conditions
Published on: August 25, 2018
11.4K
Potassium Deficiency and Hormone Signalling in Plants
Shefali Mishra1, Diksha Bisht2, Anna Amtmann3
1Nuclear Agricultural Biotechnology Division, Bhabha Atomic Research Centre, Mumbai, India.
Plant, Cell & Environment
|September 18, 2025
Summary
Plant hormone signaling is key to improving potassium use efficiency (KUE) in crops, especially in low-potassium soils. Understanding this crosstalk is vital for enhancing plant growth and global food security.
Area of Science:
- Plant Physiology
- Nutrient Management
- Molecular Biology
Background:
- Potassium (K⁺) is an essential macronutrient for plant growth and development.
- Enhancing potassium use efficiency (KUE) is critical for crop production in potassium-deficient soils.
- Current strategies targeting K⁺ sensing and signaling have yielded limited success in developing high-KUE crops.
Purpose of the Study:
- To review the role of hormonal signaling in plant responses to potassium deficiency.
- To integrate evidence on K⁺-hormone signaling crosstalk and its effects on plant physiology.
- To provide a framework for advancing KUE research.
Main Methods:
- Literature review integrating evidence on K⁺-hormone signaling crosstalk.
- Meta-analysis of hormonal roles in K⁺ deficiency responses.
- Assessment of transcriptional changes mediated by hormones.
Main Results:
- Hormonal signaling pathways significantly regulate plant responses to potassium deficiency.
- K⁺-hormone crosstalk influences root system architecture, K⁺ uptake, and stress resilience.
- Jasmonic acid and abscisic acid play central roles in mediating transcriptional changes during K⁺ deficiency.
Conclusions:
- K⁺-hormone signaling crosstalk is a crucial mechanism in plant adaptation to low potassium conditions.
- Understanding this crosstalk offers novel strategies for developing crops with improved KUE.
- This research framework can contribute to addressing global food security challenges.
Related Concept Videos
01:25Cell Signaling in Plants
6.1K
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...
6.1K
01:56Plant Hormones
27.3K
Plant hormones—or phytohormones—are chemical molecules that modulate one or more physiological processes of a plant. In animals, hormones are often produced in specific glands and circulated via the circulatory system. However, plants lack hormone-producing glands.
27.3K
01:45Endocrine Signaling
67.9K
Endocrine cells produce hormones to communicate with remote target cells found in other organs. The hormone reaches these distant areas using the circulatory system. This exposes the whole organism to the hormone but only those cells expressing hormone receptors or target cells are affected. Thus, endocrine signaling induces slow responses from its target cells but these effects also last longer.
67.9K
02:02Responses to Salt Stress
14.5K
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.
14.5K
02:12Short-distance Transport of Resources
17.5K
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.
17.5K
01:26Regulation of Sodium and Potassium
2.0K
The regulation of sodium and potassium ion concentrations in the human body is a complex process governed primarily by hormones such as aldosterone, antidiuretic hormone (ADH), and atrial natriuretic peptide (ANP).
Sodium Regulation
Sodium ions make up approximately 90% of extracellular cations, with a normal blood plasma concentration of 136–148 mEq/L. A decrease in blood volume and pressure triggers the release of renin from granular cells in the juxtaglomerular complex (JGC), primarily...
Sodium Regulation
Sodium ions make up approximately 90% of extracellular cations, with a normal blood plasma concentration of 136–148 mEq/L. A decrease in blood volume and pressure triggers the release of renin from granular cells in the juxtaglomerular complex (JGC), primarily...
2.0K