RT info:eu-repo/semantics/article
T1 MATI, a Novel Protein Involved in the Regulation of Herbivore-Associated Signaling Pathways
A1 Santamaría Fernández, Mª Estrella
A1 Martínez, Manuel
A1 Arnáiz Alonso, Ana
A1 Ortego, Félix
A1 Grbic, Vojislava
A1 Diaz, Isabel
K1 Plant–herbivore interaction
K1 Tetranychus urticae
K1 Arabidopsis thaliana
K1 Spodoptera exigua
K1 Hormonal signaling pathways
K1 Plant redox status
K1 Biotecnología
K1 Biotechnology
AB The defense response of the plants against herbivores relies on a complex network of interconnected signaling pathways. In this work, we characterized a new key player in the response of Arabidopsis against the two-spotted spider mite Tetranychus urticae, the MATI (Mite Attack Triggered Immunity) gene. This gene was differentially induced in resistant Bla-2 strain relative to susceptible Kon Arabidopsis accessions after mite attack, suggesting a potential role in the control of spider mites. To study the MATI gene function, it has been performed a deep molecular characterization of the gene combined with feeding bioassays using modified Arabidopsis lines and phytophagous arthropods. The MATI gene belongs to a new gene family that had not been previously characterized. Biotic assays showed that it confers a high tolerance not only to T. urticae, but also to the chewing lepidopteran Spodoptera exigua. Biochemical analyses suggest that MATI encodes a protein involved in the accumulation of reducing agents upon herbivore attack to control plant redox homeostasis avoiding oxidative damage and cell death. Besides, molecular analyses demonstrated that MATI is involved in the modulation of different hormonal signaling pathways, affecting the expression of genes involved in biosynthesis and signaling of the jasmonic acid and salicylic acid hormones. The fact that MATI is also involved in defense through the modulation of the levels of photosynthetic pigments highlights the potential of MATI proteins to be exploited as biotechnological tools for pest control.
PB Frontiers Media
YR 2017
FD 2017
LK http://hdl.handle.net/10259/10105
UL http://hdl.handle.net/10259/10105
LA eng
NO This work was supported by projects from Ministerio de Economía y Competitividad of Spain (projects BIO2014-53508-R and 618105-FACCE-Era Net Plus) and the Government of Canada through Genome Canada and the Ontario Genomics Institute (OGI–046), the Ontario Research Fund (RE08-067) and the Natural Sciences and Engineering Research Council of Canada. MS was recipient of a post-doctoral grant from the Ministerio de Economia y Competitividad of Spain (subprogram Juan de la Cierva 2012).
DS Repositorio Institucional de la Universidad de Burgos
RD 31-ene-2025