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학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2018.6
- 수록면
- 165 - 173 (9page)
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Cuscutain is a cysteine protease produced by dodder (the most important weeds of alfalfa) that is essential for the development and penetration of the haustoria in host. The propeptide subunit of cuscutain has a specific inhibitory function and inhibits the enzymatic activity of the cuscutain. In this study, we introduced the gene encoding the propeptide segment of the cuscutain (signal peptide-less inhibitor) into alfalfa and investigated its roles in parasitism and the alfalfa resistance to C. reflexa. Results demonstrated that cuscutain is mainly expressed in haustoria and the expression of propeptide in transgenic alfalfa plants effectively inhibited cuscutain enzyme activity and consequently interrupted haustoria development at the pathogenic stage. Digitate cells of haustoria could not differentiate into the xylem and phloem hyphae in dodder grown on transgenic alfalfa. Dodder development on transgenic alfalfa lines showed an overall reduction in fecundity and vigor due to imperfect attachment of haustoria. Morphology, nodule development and biomass of transgenic plants indicate that the inhibitory transgene exhibits exquisite specificity for cuscutain enzyme and by expression of the inhibitor in transgenic plants, there was no obvious adverse effect on them. The increased development and growth of dodder-challenged alfalfa transgenic plants compared to controls, showed the efficacy of propeptide in dodder control.
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참고문헌 (23)
참고문헌 신청
Albert M / 2010 / Calcium signaling during the plant-plant interaction of parasitic Cuscuta reflexa with its hosts / Plant Signal Behav 59:1144~1146
Massoume Amini / 2017 / Host-synthesized cysteine protease-specific inhibitor disrupts Cuscuta campestris parasitism in tomato / Plant Biotechnology Reports 11(5):289~298
Ashigh J / 2010 / Dodder (Cuscuta spp.) biology and management. NM State University, Guide A-615
Birschwilks M / 2007 / Arabidopsis thaliana is a susceptible host plant for the holoparasite Cuscuta spec / Planta 226:1231~1241
Bleischwitz M / 2010 / Significance of cuscutain, a cysteine protease from Cuscuta reflexa, in host-parasite interactions / BMC Plant Biol 10:227
Massoume Amini / 2017 / Host-synthesized cysteine protease-specific inhibitor disrupts Cuscuta campestris parasitism in tomato / Plant Biotechnology Reports 11(5):289~298
Ashigh J / 2010 / Dodder (Cuscuta spp.) biology and management. NM State University, Guide A-615
Birschwilks M / 2007 / Arabidopsis thaliana is a susceptible host plant for the holoparasite Cuscuta spec / Planta 226:1231~1241
Bleischwitz M / 2010 / Significance of cuscutain, a cysteine protease from Cuscuta reflexa, in host-parasite interactions / BMC Plant Biol 10:227
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