Importance of AOX pathway in optimizing photosynthesis under high light stress: role of pyruvate and malate in activating AOX

• Published in: Physiologia plantarum Vol. 139; no. 1; pp. 13 - 26
• Main Authors: Dinakar, Challabathula, Raghavendra, Agepati S, Padmasree, Kollipara
• Format: Journal Article
• Language: English
• Published: Oxford, UK Oxford, UK : Blackwell Publishing Ltd 01.05.2010; Blackwell Publishing Ltd; Blackwell
• Subjects: Biological and medical sciences; Fundamental and applied biological sciences. Psychology; Light; Malates - metabolism; Mitochondrial Proteins; Oxidoreductases - metabolism; Photosynthesis - physiology; Pisum sativum - enzymology; Pisum sativum - metabolism; Plant physiology and development; Plant Proteins; Pyruvic Acid - metabolism; Malate; Plant physiology; Light; Pyruvate; Photosynthesis; Optimization; Stress

The present study shows the importance of alternative oxidase (AOX) pathway in optimizing photosynthesis under high light (HL). The responses of photosynthesis and respiration were monitored as O₂ evolution and O₂ uptake in mesophyll protoplasts of pea pre-incubated under different light intensities...