[논문]Effect of Salinity on Lignin and Hydroxycinnamic Acid Contents in Rice

Wi Seung Gon; Kim Jae-Sung; Kim Jin-Hong; Baek Myung Hwa; Yang Dae-Hwa; Lee Myung Chul; Chung Byung Yeoup

Effect of Salinity on Lignin and Hydroxycinnamic Acid Contents in Rice 원문보기

Korean journal of crop science = 韓國作物學會誌, v.49 no.5, 2004년, pp.368 - 372

Wi Seung Gon (Korea Atomic Energy Research Institute(KAERI)) , Kim Jae-Sung (Korea Atomic Energy Research Institute(KAERI)) , Kim Jin-Hong (Korea Atomic Energy Research Institute(KAERI)) , Baek Myung Hwa (Korea Atomic Energy Research Institute(KAERI)) , Yang Dae-Hwa (Korea Atomic Energy Research Institute(KAERI)) , Lee Myung Chul (National Institute of Agricultural Biotechnology, R.D.A.) , Chung Byung Yeoup (Korea Atomic Energy Research Institute(KAERI))

Abstract ▼ AI-Helper

The lignin contents between IR-29 and Pokkali were not significantly different in the absence of NaCl, but they were slightly increased at 40 mM NaCl. Although lignin contents were not relatively significantly different between salt treated and control plants, the total yields of alkaline nitrobenzene oxidation ranged from 17.4-20.0 mg/g of cell wall residue at 40 mM NaCl were significantly different compared with control plants (11.8-12.2 mg/g). The total amounts of ester-linked hydroxycin-namic acids in IR-29 were decreased from 14.5 to 9.9mg/g, while Pokkali is almost same levels (14.9-15.0 mg/g) under treated and control with 40 mM NaCl. In contrast, the total amounts of ether-linked hydroxycinnamic acids were increased from 9.4 to 13.9 mg/g together with an opposite trend in Pokkali as a decrease 10.9 to 8.8 mg/g under treated and control with 40 mM NaCl. These results revealed that IR-29 is more sensitive in response to 40 mM NaCl in terms of hydroxycinnamic acids than Pokkali.

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제안 방법

The present research was undertaken to improve understanding of the response of hgmns and hydroxycinnamic acids in rice to salt stress. The emphasis is to quantitatively determine both ester- and ether-linked hydroxycinnamic acids, e.g. FA, PCA, and characteristics oflignins under salt stress.

대상 데이터

) evs IR-29 (salt-sensitive) and Pokkali (salt-resistant) were obtained from International Rice Research Institute (IRRI; Philippines). Seeds were put polystyrene plates with a plant-to-plant distance of 15 cm and grown in the Chungnam National University green house facilities.

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