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Commun Integr Biol

Title:		Floral thermogenesis: An adaptive strategy of pollination biology in Magnoliaceae
Author(s):		Wang R; Zhang Z;
Address:		"National Engineering Laboratory for Tree Breeding; Key Laboratory for Genetics and Breeding of Forest Trees and Ornamental Plants; Ministry of Education; College of Biological Sciences and Biotechnology; Beijing Forestry University ; Beijing, PR China. Lab of Systematic Evolution and Biogeography of Woody Plants; College of Nature Conservation; Beijing Forestry University ; Beijing, PR China"
Journal Title:		Commun Integr Biol
Year:		2015
Volume:		20150309
Issue:		1
Page Number:		e992746 -
DOI:		10.4161/19420889.2014.992746
ISSN/ISBN:		1942-0889 (Print) 1942-0889 (Electronic) 1942-0889 (Linking)
Abstract:		"Floral thermogenesis plays a crucial role in pollination biology, especially in plant-pollinator interactions. We have recently explored how thermogenesis is related to pollinator activity and odour release in Magnolia sprengeri. By analyzing flower temperatures, emission of volatiles, and insect visitation, we found that floral blends released during pistillate and staminate stages were similar and coincided with sap beetle visitation. Thus, odour mimicry of staminate-stage flowers may occur during the pistillate stage and may be an adaptive strategy of Magnolia species to attract pollinators during both stages, ensuring successful pollination. In addition to the biological significance of floral thermogenesis in Magnolia species, we explored the underlying regulatory mechanisms via profiling miRNA expression in M. denudata flowers during thermogenic and non-thermogenic stages. We identified 17 miRNAs that may play regulatory roles in floral thermogenesis. Functional annotation of their target genes indicated that these miRNAs regulate floral thermogenesis by influencing cellular respiration and light reactions. These findings increase our understanding of plant-pollinator interactions and the regulatory mechanisms in thermogenic plants"
Keywords:		Magnoliaceae odour mimicry pollination biology regulatory mechanisms thermogenesis;
Notes:		"PubMed-not-MEDLINEWang, Ruohan Zhang, Zhixiang eng 2016/02/06 Commun Integr Biol. 2015 Mar 9; 8(1):e992746. doi: 10.4161/19420889.2014.992746. eCollection 2015 Jan-Feb"