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uBio  Web  Results 151 - 160 of about 3606 Synonyms:    Oncidium carthaginense (Coot Bay dancing-lady orchid)  Broader Terms:    Oncidium (Golden showers orchid)     Orchidales  More Specific:    Oncidium carthaginense andreanum     Oncidium carthaginense klotzschii     Oncidium carthaginense oerstedii     Oncidium carthaginense sanguineum     Oncidium carthaginense swartzii      External Resources: Common Names: Coot Bay dancing-lady orchid 151.  GeSUT4 mediates sucrose import at the symbiotic interface for carbon allocation of heterotrophic Gastrodia elata (Orchidaceae). Ho LH, Lee YI, Hsieh SY, Lin IS, Wu YC, Ko HY, Klemens PA, Neuhaus HE, Chen YM, Huang TP, Yeh CH, Guo WJ Plant, cell & environment Plant Cell Environ GeSUT4 mediates sucrose import at the symbiotic interface for carbon allocation of heterotrophic Gastrodia elata (Orchidaceae). 20-33 10.1111/pce.13833 Gastrodia elata, a fully mycoheterotrophic orchid without photosynthetic ability, only grows symbiotically with the fungus Armillaria. The mechanism of carbon distribution in this mycoheterotrophy is unknown. We detected high sucrose concentrations in all stages of Gastrodia tubers, suggesting sucrose may be the major sugar transported between fungus and orchid. Thick symplasm-isolated wall interfaces in colonized and adjacent large cells implied involvement of sucrose importers. Two sucrose transporter (SUT)-like genes, GeSUT4 and GeSUT3, were identified that were highly expressed in young Armillaria-colonized tubers. Yeast complementation and isotope tracer experiments confirmed that GeSUT4 functioned as a high-affinity sucrose-specific proton-dependent importer. Plasma-membrane/tonoplast localization of GeSUT4-GFP fusions and high RNA expression of GeSUT4 in symbiotic and large cells indicated that GeSUT4 likely functions in active sucrose transport for intercellular allocation and intracellular homeostasis. Transgenic Arabidopsis overexpressing GeSUT4 had larger leaves but were sensitive to excess sucrose and roots were colonized with fewer mutualistic Bacillus, supporting the role of GeSUT4 in regulating sugar allocation. This is not only the first documented carbon import system in a mycoheterotrophic interaction but also highlights the evolutionary importance of sucrose transporters for regulation of carbon flow in all types of plant-microbe interactions. © 2020 John Wiley & Sons Ltd. Ho Li-Hsuan LH Department of Biotechnology and Bioindustry Sciences, National Cheng Kung University, Tainan, Taiwan, Republic of China. Lee Yung-I YI Biology Department, National Museum of Natural Science, Taichung, Taiwan, Republic of China. Hsieh Shu-Ying SY Department of Biotechnology and Bioindustry Sciences, National Cheng Kung University, Tainan, Taiwan, Republic of China. Lin I-Shiuan IS Department of Biotechnology and Bioindustry Sciences, National Cheng Kung University, Tainan, Taiwan, Republic of China. Wu Yun-Chien YC Department of Biotechnology and Bioindustry Sciences, National Cheng Kung University, Tainan, Taiwan, Republic of China. Ko Han-Yu HY Department of Biotechnology and Bioindustry Sciences, National Cheng Kung University, Tainan, Taiwan, Republic of China. Klemens Patrick A PA Plant Physiology, University of Kaiserslautern, Kaiserslautern, Germany. Neuhaus H Ekkehard HE Plant Physiology, University of Kaiserslautern, Kaiserslautern, Germany. Chen Yi-Min YM Department of Biotechnology and Bioindustry Sciences, National Cheng Kung University, Tainan, Taiwan, Republic of China. Huang Tzu-Pi TP Department of Plant Pathology, National Chung Hsing University, Taichung, Taiwan, Republic of China. Yeh Chih-Hsin CH Taoyuan District Agricultural Research and Extension Station, Council of Agriculture, Taoyuan, Taiwan, Republic of China. Guo Woei-Jiun WJ https://orcid.org/0000-0003-0183-8473 Department of Biotechnology and Bioindustry Sciences, National Cheng Kung University, Tainan, Taiwan, Republic of China. eng DAAD PPP Taiwan 57320939 Deutscher Akademischer Austauschdienst MOST 104-2311-B-006-004-MY3 Ministry of Science and Technology, Taiwan MOST 108-2314-B-006-77-MY3 Ministry of Science and Technology, Taiwan MOST PPP Germany 106-2911-I-006-506 Ministry of Science and Technology, Taiwan Journal Article 2020 08 10 United States Plant Cell Environ 9309004 0140-7791 IM Bacillus subtilis SUT mycoheterotrophy symbiosis transporter 2020 04 19 2020 06 17 2020 06 19 2020 6 26 6 0 2020 6 26 6 0 2020 6 26 6 0 ppublish 32583877 10.1111/pce.13833 Plant Biol (Stuttg) Secondary origin, hybridization and sexual reproduction in a diploid-tetraploid contact zone of the facultatively apomictic orchid Zygopetalum mackayi. 939-948 10.1111/plb.13148 The production of triploids and apomictic reproduction are important processes for polyploid establishment and cytotype coexistence, but we know little about the interaction between triploids and facultatively apomictic plants. To bridge this gap, we studied the pollen-dependent, facultatively apomictic orchid Zygopetalum mackayi from high-elevation outcrops of southeast Brazil. We described the nature of the contact between Z. mackayi cytotypes and patterns of genetic diversity and structure based on eight microsatellite markers and 155 individuals of pure tetraploid, pure diploid and mixed cytotype populations. Our results revealed high values of genetic and genotypic diversity within all populations of Z. mackayi. Each cytotype emerged as a genetic distinct cluster, combining individuals from different populations. Triploids clustered in an intermediate position between diploids and tetraploids. Most genetic variance is associated with individuals within populations and genetic differentiation is high among populations. Mixed cytotype populations of Z. mackayi originate from secondary contact. Triploids are hybrids between diploids and tetraploids and likely act as a bridge. Our results point to the predominance of sexual reproduction in all populations but do not corroborate previous basic chromosome number for this species. Polyploidy rather than facultative apomixis may explain the larger geographic distribution of tetraploids of Z. mackayi. © 2020 German Society for Plant Sciences and The Royal Botanical Society of the Netherlands. Moura Y A YA https://orcid.org/0000-0001-8203-3890 Departamento de Biologia Vegetal, Instituto de Biologia, CP 6109, Universidade Estadual de Campinas - UNICAMP, 13083-970, Campinas, SP, Brazil. Alves-Pereira A A https://orcid.org/0000-0002-3012-6355 Departamento de Biologia Vegetal, Instituto de Biologia, CP 6109, Universidade Estadual de Campinas - UNICAMP, 13083-970, Campinas, SP, Brazil. da Silva C C CC Departamento de Biologia Vegetal, Instituto de Biologia, CP 6109, Universidade Estadual de Campinas - UNICAMP, 13083-970, Campinas, SP, Brazil. Souza L M LM https://orcid.org/0000-0002-0202-9531 Departamento de Biologia Vegetal, Instituto de Biologia, CP 6109, Universidade Estadual de Campinas - UNICAMP, 13083-970, Campinas, SP, Brazil. de Souza A P AP https://orcid.org/0000-0003-3831-9829 Departamento de Biologia Vegetal, Instituto de Biologia, CP 6109, Universidade Estadual de Campinas - UNICAMP, 13083-970, Campinas, SP, Brazil. Koehler S S https://orcid.org/0000-0003-0955-5339 Departamento de Biologia Vegetal, Instituto de Biologia, CP 6109, Universidade Estadual de Campinas - UNICAMP, 13083-970, Campinas, SP, Brazil. eng 2014/04426-5 Fundação de Amparo à Pesquisa do Estado de São Paulo 2018/00036-9 Fundação de Amparo à Pesquisa do Estado de São Paulo Coordenação de Aperfeiçoamento de Pessoal de Nível Superior 88887.373880/2019-00 FAEPEX-UNICAMP Journal Article England Plant Biol (Stuttg) 101148926 1435-8603 IM Brazil Diploidy Hybridization, Genetic Orchidaceae physiology Polyploidy Reproduction Tetraploidy apomixis hybrid mixed cytotype polyploidy reproductive interference sympatry triploid 2020 03 16 2020 05 26 2020 6 20 6 0 2021 1 14 6 0 2020 6 20 6 0 ppublish 32558140 10.1111/plb.13148