APX — Solanum lycopersicum

Summary

SlAPX (SOLYC06G005160.4) on tomato chromosome 6 encodes a haem peroxidase with L-ascorbate peroxidase activity, also annotated with p-coumarate 3-hydroxylase, siRNA binding, chitosan binding, RNA endonuclease, miRNA binding, chitin binding, histone H2AS1 kinase, transmembrane receptor protein kinase, heme binding, kinase, protein kinase, metal binding, and protein serine/threonine kinase activities. The gene is associated with drought resistance in tomato, and linked to the ascorbate glutathione cycle, xanthophyll cycle, hydrogen sulfide anabolism, vascular transport, chemotropism, and light absorption. It localises to the peroxisome membrane, chloroplast thylakoid membrane, stress granule, plant-type cell wall, chloroplast stroma, Golgi complex, plasmodesma, extracellular space, membrane, and mitochondria. Associations include fruit diameter, stem thickness, leaf weight, root volume, seedling vigor, total soluble sugar content, relative chlorophyll content, rubisco content, IAA content, bacterial blight disease resistance, viral disease response, submergence tolerance, drought sensitivity, and fungal disease response.