LaCl3 Treatment Improves Agrobacterium-mediated Immature Embryo Genetic Transformation Frequency of Maize
Keyword(s):
Abstract Agrobacterium-mediated genetic transformation of immature embryos is important for gene-function studies and molecular breeding of maize. However, the relatively low genetic transformation frequency remains a bottleneck for applicability of this method, especially on commercial scale. We report that pretreatment of immature embryos with LaCl3 (a Ca2+ channel blocker) improves the infection frequency of Agrobacterium tumefaciens, increases the proportion of positive calluses, yields more positive regenerated plantlets, and increases the transformation frequency from 8.40% to 17.60% for maize. This optimization is a novel method for improving the frequency of plant genetic transformations mediated by Agrobacterium tumefaciens.
2021 ◽
2015 ◽
Vol 38
(4)
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pp. 470-476
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2019 ◽
Vol 46
(3)
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pp. 223-230
2006 ◽
Vol 87
(3)
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pp. 233-243
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