1455-Rev.Pdf
RESEARCH ARTICLE Gigantic chloroplasts, including bizonoplasts, are common in shade-adapted species of the ancient vascular plant family Selaginellaceae Jian-Wei Liu1, Shau-Fu Li1, Chin-Ting Wu2, Iván A. Valdespino3 , Jia-Fang Ho1,2, Yeh-Hua Wu1,2, Ho-Ming Chang4 , Te-Yu Guu1, Mei-Fang Kao5, Clive Chesson6, Sauren Das7 , Hank Oppenheimer8, Ane Bakutis9, Peter Saenger10, Noris Salazar Allen11 , Jean W. H. Yong12 , Bayu Adjie13, Ruth Kiew14, Nalini Nadkarni15 , Chun-Lin Huang16 , Peter Chesson1,17 , and Chiou-Rong Sheue1,17,18 Manuscript received 11 August 2019; revision accepted 21 January 2020. PREMISE: Unique among vascular plants, some species of Selaginella have single giant 1 Department of Life Sciences & Research Center for Global Change chloroplasts in their epidermal or upper mesophyll cells (monoplastidy, M), varying in Biology, National Chung Hsing University, Taichung, Taiwan structure between species. Structural variants include several forms of bizonoplast with 2 Department of Biological Resources, National Chiayi University, unique dimorphic ultrastructure. Better understanding of these structural variants, their Chiayi, Taiwan prevalence, environmental correlates and phylogenetic association, has the potential to 3 Departamento de Botánica, Facultad de Ciencias Naturales, shed new light on chloroplast biology unavailable from any other plant group. Exactas y Tecnología, Universidad de Panamá; Sistema Nacional de Investigación (SNI), SENACYT, Panama, Panama METHODS: The chloroplast ultrastructure of 76 Selaginella species
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