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Molecular and Physiological Responses of Physcomitrella patens to Ultraviolet-B Radiation
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Molecular and Physiological Responses of Physcomitrella patens to Ultraviolet-B Radiation
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Journal Article
Molecular and Physiological Responses of Physcomitrella patens to Ultraviolet-B Radiation
2010
Overview
Ultraviolet-B (UV-B) radiation present in sunlight is an important trigger of photomorphogenic acclimation and stress responses in sessile land plants. Although numerous moss species grow in unshaded habitats, our understanding of their UV-B responses is very limited. The genome of the model moss Physcomitrella patens, which grows in sun-exposed open areas, encodes signaling and metabolic components that are implicated in the UV-B response in flowering plants. In this study, we describe the response of P. patens to UV-B radiation at the morphological and molecular levels. We find that P. patens is more capable of surviving UV-B stress than Arabidopsis (Arabidopsis thaliana) and describe the differential expression of approximately 400 moss genes in response to UV-B radiation. A comparative analysis of the UV-B response in P. patens and Arabidopsis reveals both distinct and conserved pathways.
Publisher
American Society of Plant Biologists
Subject
/ Adaptation, Physiological - radiation effects
/ Arabidopsis - growth & development
/ Arabidopsis - radiation effects
/ Biological and medical sciences
/ Bryopsida - growth & development
/ Bryopsida - radiation effects
/ ENVIRONMENTAL STRESS AND ADAPTATION TO STRESS
/ Fundamental and applied biological sciences. Psychology
/ Gene Expression Regulation, Plant
/ Gene Expression Regulation, Plant - radiation effects
/ Genes
/ genetics
/ Genomes
/ Genotype
/ Germ Cells, Plant - growth & development
/ Germ Cells, Plant - radiation effects
/ habitats
/ Morphogenesis - radiation effects
/ Mosses
/ Plant physiology and development
/ Plants
/ Spores
/ Spores - growth & development
