學術資源整合系統-相關推薦

 
作者Chen, Ying-Chun;Chen Chang;Lin, Huey-Ling
出版日期2020
著作名稱Topolins and red light improve the micropropagation efficiency of passion fruit (Passiflora edulis Sims) ‘Tainung No. 1’.
刊名HortScience
55
8
頁數1337–1344
被收錄索引SCI
主題植物
關鍵字Passiflora edulis; aromatic cytokinins; LEDs; propagation; in vitro
摘要Passion fruit is a commercial crop of economic importance worldwide, with
recent increases in demand for high-quality plants for commercial production. Plant
tissue culture is widely used for the mass propagation of many commercial crops,
however its application on passion fruit is challenged by the problem of low reproducibility, leaf chlorosis, and growth retardation resulted from in vitro culture. The aim of this study was to evaluate the effects of cytokinins and light quality on in vitro culture of nodal segments of passion fruit ‘Tainung No. 1’. Three aromatic cytokinins were tested in a modified MS basal medium. The bud proliferation rates of segments initiated on a media containing 1mg·LL1 meta-topolin riboside (mTR) or benzyladenine (BA) were not significantly different at the same concentration. Buds cultured on medium supplemented with mTR grew and elongated for 4 weeks, while buds on a medium containing BA formed rosettes. After transfer to a medium without plant growth regulators (PGRs), shoots rooted spontaneously within 8 weeks. Furthermore, the effects of continuous propagation under a high proportion of red light affected the subsequent plant growth. Red LED induced an increase in the chlorophyll content (2.71 mg·gL1) compared with other light qualities (1.05–2.63 mg·gL1) and improved plantlet quality. Acclimated plants were grown in the field, and the flower morphology and fruit set were of commercial quality. Findings showed that replacing BA with mTR as the main cytokinin and using a high proportion of red light during the tissue culture induction period produced high quality plantlets in 3 months. This system is economical and will be further developed for the commercial propagation of passion fruit vines in the future.
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系統號NO000006680

May 10 2024 17:17:25
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