Agricultural Reviews

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Agricultural Reviews, volume 40 issue 3 (september 2019) : 159-174

In Planta Transformation in Plants: A Review

Ratna Preeti Kaur, Sugani Devi
1Central Potato Resaerch Station, Jalandhar
Cite article:- Kaur Preeti Ratna, Devi Sugani (2019). In PlantaTransformation in Plants: A Review. Agricultural Reviews. 40(3): 159-174. doi: 10.18805/ag.R-1597.
In planta transformation has been established as an innovative and simple technique involving direct transformation of plant parts without involving the tedious tissue culture step. Methodologies of in planta transformation involve different plant parts and strategies. Agrobacterium strain carrying the gene of interest is targeted to the specific plant part either directly or in the induction medium. Vacuum infiltration is sometimes used to facilitate foreign gene integration. Initial studies of this novel technique involved treatment of whole plants with the inoculum, and later shifted to treatments of shoot tips and floral parts and finally the female reproductive parts have been targeted. Zygotes, embryos and seeds have recently been used extensively yielding successful transformation. The method is simple, convenient and overcomes the problem of tissue culture induced genetic variability in the transformants. The review traces the origin and development in the in planta methodologies used over the past and the various parameters considered by the workers for increased effectiveness viz. developmental stages, Agrobacterium stain, surfactant, induction medium etc., in the various crops compiled. Based on the review it may be inferred that there is immense potential in planta transformation, and the ease of regeneration and selection of transformants in the methods described, can be utilized for crop improvement.
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