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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2017.10
- 수록면
- 289 - 298 (10page)
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초록· 키워드
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Dodder (Cuscuta campestris) is one of the most important pests of tomato causing severe losses in yield.
Cuscutain is a pre-pro-protein produced by dodder that has a cysteine proteinase function essential for normal development of the haustoria and parasitism, which involves the secretion and activation of cuscutain cysteine protease in the host plant tissue. The propeptide subunit of this enzyme has an inhibitory function and restricts the enzymatic activity of cuscutain. Here, we transformed the inhibitory propeptide segment of this enzyme into tomato and examined the tomato resistance to C. campestris. We demonstrate the expression of inhibitory propeptide in transgenic plants and find that it effectively interrupted cuscutain enzyme activity and haustoria development at the endophytic stage. Mature haustoria infecting transgenic hosts showed defects in searching hyphae development and these structures were not elongate, and in most cases no functional haustoria were formed due to inhibitor expression in the transgenic plants after prehaustoria contact.
Dodder grown on transgenic lines showed an overall reduction in vigor and fecundity due to defective attachment of haustoria. The increased growth of dodder-challenged transgenic plants relative to controls, demonstrates the efficacy of cysteine protease inhibition in parasite plant control.
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참고문헌 (25)
참고문헌 신청
Alakonya A / 2012 / Interspecific RNA interference of SHOOT MERISTEMLESSlike disrupts Cuscuta pentagona plant parasitism C / Plant Cell 24:3153~3166
Albert M / 2004 / The cell wall-modifying xyloglucan endotransglycosylase/hydrolase LeXTH1 is expressed during the defence reaction of tomato against the plant parasite Cuscuta reflexa / J Plant Biol 6:402~407
Bleischwitz M / 2010 / Significance of Cuscutain, a cysteine protease from Cuscuta reflexa, in host-parasite interactions / PMC Plant Biol 10:227
Chetty VJ / 2013 / Evaluation of four Agrobacterium tumefaciens strains for the genetic transformation of tomato (Solanum lycopersicum L.) cultivar Micro-Tom / Plant Cell Rep 32:239~247
Cubero JI / 1991 / Progress in Orobanche Research / Proceeding of the International Workshop on Orobanche Research :257~277
Albert M / 2004 / The cell wall-modifying xyloglucan endotransglycosylase/hydrolase LeXTH1 is expressed during the defence reaction of tomato against the plant parasite Cuscuta reflexa / J Plant Biol 6:402~407
Bleischwitz M / 2010 / Significance of Cuscutain, a cysteine protease from Cuscuta reflexa, in host-parasite interactions / PMC Plant Biol 10:227
Chetty VJ / 2013 / Evaluation of four Agrobacterium tumefaciens strains for the genetic transformation of tomato (Solanum lycopersicum L.) cultivar Micro-Tom / Plant Cell Rep 32:239~247
Cubero JI / 1991 / Progress in Orobanche Research / Proceeding of the International Workshop on Orobanche Research :257~277
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