Open Access

ARTICLE

Physiological changes in transgenic cotton inoculated with Trichoderma spp.

Vargas-Bejarano E, V Méndez-Trujillo, JC Vázquez Angulo, D González-Mendoza, O Grimaldo Juarez

Instituto de Ciencias Agrícolas de la Universidad Autónoma de Baja California (ICA-UABC), Tel.: + 52 (686)523-00; Fax +52(686)523-02-17, Carretera a Delta s/n C.P. 21705, Ejido Nuevo León, Baja California, México.

* Corresponding Author:Address Correspondence to: Daniel González Mendoza, e-mail:

Phyton-International Journal of Experimental Botany 2012, 81(all), 101-105. https://doi.org/10.32604/phyton.2012.81.101

Abstract

We performed the inoculation of transgenic cotton seedlings with Trichoderma sp. strain ICA 4 to evaluate its effects on the physiological development of seedlings. Inoculated seedlings of transgenic cotton had higher development than non-inoculated seedlings. The range of values for relative growth, doubling time, height and number of leaves (0.04 g/g d; 16.88 days; 17.16 cm and 4.2, respectively) were significantly higher that those observed in non-inoculated plants (0.03 g/g day; 24.38 days; 12.33 cm and 2.6, respectively). Regarding radical architecture, inoculated seedlings with Trichoderma strain ICA 4 showed a higher percentage of roots of 2^nd (46%), 3^rd (73%) and 4^th (98%) order with respect to control plants. This indicates that inoculation of Trichoderma strain ICA 4 can promote better nutrient use. Future studies should be designed to evaluate the expression of genes involved in the biosynthesis of plant hormones that could be involved in root development.

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