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논문 기본 정보

자료유형
학술저널
저자정보
Rungthip Sangpueak (Suranaree University of Technology) Piyaporn Phansak (Nakhon Phanom University) Kanjana Thumanu (Synchrotron Light Research Institute) Supatcharee Siriwong (Synchrotron Light Research Institute) Sopone Wongkaew (Suranaree University of Technology) Natthiya Buensanteai (Suranaree University of Technology)
저널정보
한국식물병리학회 The Plant Pathology Journal The Plant Pathology Journal 제37권 제4호
발행연도
2021.8
수록면
356 - 364 (9page)

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초록· 키워드

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This study was to investigate defense mechanisms on cassava induced by salicylic acid formulation (SA) against anthracnose disease. Our results indicated that the SA could reduce anthracnose severity in cassava plants up to 33.3% under the greenhouse condition. The β-1,3-glucanase and chitinase enzyme activities were significantly increased at 24 hours after inoculation (HAI) and decrease at 48 HAI after Colletotrichum gloeosporioides challenge inoculation, respectively, for cassava treated with SA formulation. Synchrotron radiation-based Fourier-transform infrared microspectroscopy spectra revealed changes of the C=H stretching vibration (3,000-2,800 cm<SUP>-1</SUP>), pectin (1,740-1,700 cm<SUP>-1</SUP>), amide I protein (1,700-1,600 cm<SUP>-1</SUP>), amide II protein (1,600-1,500 cm<SUP>−1</SUP>), lignin (1,515 cm<SUP>-1</SUP>) as well as mainly C-O-C of polysaccharides (1,300-1,100 cm<SUP>-1</SUP>) in the leaf epidermal and mesophyll tissues treated with SA formulations, compared to those treated with fungicide carbendazim and distilled water after the challenged inoculation with C. gloeosporioides. The results indicate that biochemical changes in cassava leaf treated with SA played an important role in the enhancement of structural and chemical defense mechanisms leading to reduced anthracnose severity.

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Materials and Methods
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