PMID: 15381852Sep 24, 2004Paper

Do leaf surface characteristics affect Agrobacterium infection in tea [Camellia sinensis (L.) O Kuntze]?

Journal of Biosciences
Nitish KumarP S Ahuja

Abstract

The host range specificity of Agrobacterium with five tea cultivars and an unrelated species (Artemisia parviflora) having extreme surface characteristics was evaluated in the present study. The degree of Agrobacterium infection in the five cultivars of tea was affected by leaf wetness, micro-morphology and surface chemistry. Wettable leaf surfaces of TV1, Upasi-9 and Kangra jat showed higher rate (75%) of Agrobacterium infection compared to Upasi-10 and ST-449, whereas non-wettable leaves of A. parviflora showed minimum (25%) infection. This indicated that the leaves with glabrous surface having lower q (larger surface area covered by water droplet), higher phenol and wax content were more suitable for Agrobacterium infection. Caffeine fraction of tea promoted Agrobacterium infection even in leaves poor in wax (Upasi-10), whereas caffeine-free wax inhibited both Agrobacterium growth and infection. Thus, study suggests the importance of leaf surface features in influencing the Agrobacterium infection in tea leaf explants. Our study also provides a basis for the screening of a clone/cultivar of a particular species most suitable for Agrobacterium infection the first step in Agrobacterium-mediated genetic transformation.

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Citations

May 29, 2013·Applied Biochemistry and Biotechnology·Nitish KumarAmita Bhattacharya
Apr 13, 2006·Medical and Veterinary Entomology·M F Cooperband, R T Cardé
Jan 8, 2020·Horticulture Research·En-Hua XiaXiao-Chun Wan
Jan 1, 2021·Horticulture Research·En-Hua XiaXiao-Chun Wan
Jul 22, 2021·AoB Plants·Kadeem J Gilbert, Tanya Renner
Oct 10, 2018·Journal of Agricultural and Food Chemistry·Guodong WangJinliang Jia

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