AtRD22 and AtUSPL1, members of the plant-specific BURP domain family involved in Arabidopsis thaliana drought tolerance.

Autor:	Harshavardhan VT; Research Group Abiotic Stress Genomics, Interdisciplinary Center for Crop Plant Research (IZN), Halle (Saale), Germany, and Leibniz Institute of Plant Genetics and Crop Plant Research (IPK) Gatersleben, Stadt Seeland, OT Gatersleben, Germany., Van Son L; Research Group Gene Regulation, Leibniz Institute of Plant Genetics and Crop Plant Research (IPK) Gatersleben, Stadt Seeland, OT Gatersleben, Germany; National Key Laboratory of Gene Technology, Institute of Biotechnology Vietnam, Academy of Science and Technology, Hanoi, Vietnam., Seiler C; Research Group Abiotic Stress Genomics, Interdisciplinary Center for Crop Plant Research (IZN), Halle (Saale), Germany, and Leibniz Institute of Plant Genetics and Crop Plant Research (IPK) Gatersleben, Stadt Seeland, OT Gatersleben, Germany., Junker A; Research Group Heterosis, Leibniz Institute of Plant Genetics and Crop Plant Research (IPK) Gatersleben, Stadt Seeland, OT Gatersleben, Germany., Weigelt-Fischer K; Research Group Heterosis, Leibniz Institute of Plant Genetics and Crop Plant Research (IPK) Gatersleben, Stadt Seeland, OT Gatersleben, Germany., Klukas C; Research Group Image Analysis, Leibniz Institute of Plant Genetics and Crop Plant Research (IPK) Gatersleben, Stadt Seeland, OT Gatersleben, Germany., Altmann T; Research Group Heterosis, Leibniz Institute of Plant Genetics and Crop Plant Research (IPK) Gatersleben, Stadt Seeland, OT Gatersleben, Germany., Sreenivasulu N; Research Group Abiotic Stress Genomics, Interdisciplinary Center for Crop Plant Research (IZN), Halle (Saale), Germany, and Leibniz Institute of Plant Genetics and Crop Plant Research (IPK) Gatersleben, Stadt Seeland, OT Gatersleben, Germany; Grain Quality and Nutrition Center, International Rice Research Institute (IRRI), Metro Manila, Philippines., Bäumlein H; Research Group Gene Regulation, Leibniz Institute of Plant Genetics and Crop Plant Research (IPK) Gatersleben, Stadt Seeland, OT Gatersleben, Germany., Kuhlmann M; Research Group Abiotic Stress Genomics, Interdisciplinary Center for Crop Plant Research (IZN), Halle (Saale), Germany, and Leibniz Institute of Plant Genetics and Crop Plant Research (IPK) Gatersleben, Stadt Seeland, OT Gatersleben, Germany.
Jazyk:	angličtina
Zdroj:	PloS one [PLoS One] 2014 Oct 15; Vol. 9 (10), pp. e110065. Date of Electronic Publication: 2014 Oct 15 (Print Publication: 2014).
DOI:	10.1371/journal.pone.0110065
Abstrakt:	Crop plants are regularly challenged by a range of environmental stresses which typically retard their growth and ultimately compromise economic yield. The stress response involves the reprogramming of approximately 4% of the transcriptome. Here, the behavior of AtRD22 and AtUSPL1, both members of the Arabidopsis thaliana BURP (BNM2, USP, RD22 and polygalacturonase isozyme) domain-containing gene family, has been characterized. Both genes are up-regulated as part of the abscisic acid (ABA) mediated moisture stress response. While AtRD22 transcript was largely restricted to the leaf, that of AtUSPL1 was more prevalent in the root. As the loss of function of either gene increased the plant's moisture stress tolerance, the implication was that their products act to suppress the drought stress response. In addition to the known involvement of AtUSPL1 in seed development, a further role in stress tolerance was demonstrated. Based on transcriptomic data and phenotype we concluded that the enhanced moisture stress tolerance of the two loss-of-function mutants is a consequence of an enhanced basal defense response.
Databáze:	MEDLINE
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