The tryptophan pathway is involved in the defense responses of rice against pathogenic infection via serotonin production

• Published in: The Plant journal : for cell and molecular biology Vol. 54; no. 3; pp. 481 - 495
• Main Authors: Ishihara, Atsushi, Hashimoto, Yumi, Tanaka, Chihiro, Dubouzet, Joseph G., Nakao, Takahito, Matsuda, Fumio, Nishioka, Takaaki, Miyagawa, Hisashi, Wakasa, Kyo
• Format: Journal Article
• Language: English
• Published: Oxford, UK Blackwell Publishing Ltd 01.05.2008; Blackwell Science
• Subjects: Anthranilate Synthase - genetics; Anthranilate Synthase - metabolism; Aromatic-L-Amino-Acid Decarboxylases - genetics; Aromatic-L-Amino-Acid Decarboxylases - metabolism; Ascomycota - growth & development; Biological and medical sciences; Botany; Cellular biology; Crop diseases; Fundamental and applied biological sciences. Psychology; Fungal plant pathogens; Gramineae; Metabolism; Molecular Structure; Mutation; Oryza - genetics; Oryza - metabolism; Oryza - microbiology; Oryza sativa; Pathology, epidemiology, host-fungus relationships. Damages, economic importance; physical defense; Phytopathology. Animal pests. Plant and forest protection; Plant Leaves - genetics; Plant Leaves - metabolism; Plant Leaves - microbiology; Plant Proteins - genetics; Plant Proteins - metabolism; Plants, Genetically Modified; Rice; secondary metabolism; serotonin; Serotonin - chemistry; Serotonin - metabolism; Signal Transduction - physiology; tryptophan; Tryptophan - chemistry; Tryptophan - metabolism; Monocotyledones; Decarboxylase; Anthranilate synthase; Growth; Enzyme; Lyases; Plant leaf; rice; Cell wall; Oxo-acid-lyases; Oryza sativa; Carbon-carbon lyases; serotonin; Gramineae; Carboxy-lyases; Angiospermae; physical defense; Spermatophyta; Mutation; Secondary metabolism; tryptophan

Summary The upregulation of the tryptophan (Trp) pathway in rice leaves infected by Bipolaris oryzae was indicated by: (i) enhanced enzyme activity of anthranilate synthase (AS), which regulates metabolic flux in the Trp pathway; (ii) elevated levels of the AS (OASA2, OASB1, and OASB2) transcripts;...