RT Journal Article
T1 Overexpression of HvIcy6 in Barley Enhances Resistance against Tetranychus urticae and Entails Partial Transcriptomic Reprogramming
A1 Santamaria, Estrella
A1 Díaz Mendoza, María Mercedes
A1 Perez-Herguedas, David
A1 Hensel, Goetz
A1 Kumlehn, Jochen
A1 Diaz, Isabel
A1 Martinez, Manuel
AB Cystatins have been largely used for pest control against phytophagous species. However, cystatins have not been commonly overexpressed in its cognate plant species to test their pesticide capacity. Since the inhibitory role of barley HvCPI-6 cystatin against the phytophagous mite Tetranychus urticae has been previously demonstrated, the purpose of our study was to determine if barley transgenic lines overexpressing its own HvIcy6 gene were more resistant against this phytophagous infestation. Besides, a transcriptomic analysis was done to find differential expressed genes among wild-type and transformed barley plants. Barley plants overexpressing HvIcy6 cystatin gene remained less susceptible to T. urticae attack when compared to wild-type plants, with a significant lesser foliar damaged area and a lower presence of the mite. Transcriptomic analysis revealed a certain reprogramming of cellular metabolism and a lower expression of several genes related to photosynthetic activity. Therefore, although caution should be taken to discard potential deleterious pleiotropic effects, cystatins may be used as transgenes with impact on agricultural crops by conferring enhanced levels of resistance to phytophagous pests.
PB MDPI
SN 1661-6596
YR 2018
FD 2018
LK https://hdl.handle.net/20.500.14352/95280
UL https://hdl.handle.net/20.500.14352/95280
LA eng
NO Santamaria, M.E.; Diaz-Mendoza, M.; Perez-Herguedas, D.; Hensel, G.; Kumlehn, J.; Diaz, I.; Martinez, M. Overexpression of HvIcy6 in Barley Enhances Resistance against Tetranychus urticae and Entails Partial Transcriptomic Reprogramming. Int. J. Mol. Sci. 2018, 19, 697. https://doi.org/10.3390/ijms19030697
NO Ministerio de Economía, Industria y Competitividad (España)
DS Docta Complutense
RD 17 abr 2025