Differential response of cultivated rice to pathogen challenge and abiotic stresses with reference to cationic peroxidase

Autor:	Subramanian Babu, Bawankar Raksha, Ramamoorthy Siva, Singh Pooja, G. Vivekanandhan ., Vylassery Deepthi, R. Subashkumar
Rok vydání:	2013
Předmět:	Abiotic component Antioxidant biology medicine.medical_treatment fungi food and beverages Biotic stress Salinity Agronomy Catalase biology.protein medicine Blight Agronomy and Crop Science Pathogen Peroxidase
Zdroj:	Archives Of Phytopathology And Plant Protection. 47:1390-1399
ISSN:	1477-2906 0323-5408
DOI:	10.1080/03235408.2013.843332
Popis:	Seedlings of cultivated rice variety ADT43 was investigated after challenging with two different abiotic (drought and salinity) and biotic (sheath blight and bacterial leaf blight pathogens) stresses. Salinity and drought stress reduced the growth of seedlings, mainly the higher conditions (100 mM NaCl and 10 days of drought, respectively). Increased level of MDA content was observed in biotic and abiotic-stress treated seedlings. The highest H2O2 content was observed under salinity-stressed seedlings and lower level observed under biotic stress. Superoxide dismutase activity showed a gradual decrease in all stress conditions compared to control. Salinity stress resulted in highest activity of catalase compared to biotic stress. The peroxidase activity of the seedlings was found to be increased under salt and drought stress conditions and the activity decreased under biotic stress. Drought stress resulted in induced expression of POC1 gene whereas the biotic stress showed lower expression level. Suppressi...
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::3d6464f49de19e2a4d03bf02c937c7a0 https://doi.org/10.1080/03235408.2013.843332 Zobrazit plný text záznamu