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Abstract
Tissue adhesion between plant species occurs both naturally and artificially. Parasitic plants establish intimate relationship with host plants by adhering tissues at roots or stems. Plant grafting, on the other hand, is a widely used technique in agriculture to adhere tissues of two stems. Here we found that the model Orobanchaceae parasitic plant Phtheirospermum japonicum can be grafted on to interfamily species. To understand molecular basis of tissue adhesion between distant plant species, we conducted comparative transcriptome analyses on both infection and grafting by P. japonicum on Arabidopsis. Despite different organs, we identified the shared gene expression profile, where cell proliferation- and cell wall modification-related genes are up-regulated. Among genes commonly induced in tissue adhesion between distant species, we showed a gene encoding a secreted type of β-1,4-glucanase plays an important role for plant parasitism. Our data provide insights into the molecular commonality between parasitism and grafting in plants.
Ken-ichi Kurotani, Takanori Wakatake et al. study tissue adhesion in plants. They found that the model Orobanchaceae parasitic plant Phtheirospermum japonicum can be grafted on to interfamily species. Using transcriptome profiling, the identify genes involved in tissue adhesion between distant species and demonstrate that β-1,4-glucanase plays an important role in plant parasitism.
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1 Nagoya University, Bioscience and Biotechnology Center, Chikusa-ku, Japan (GRID:grid.27476.30) (ISNI:0000 0001 0943 978X)
2 The University of Tokyo, Graduate School of Science, Bunkyo-ku, Japan (GRID:grid.26999.3d) (ISNI:0000 0001 2151 536X); RIKEN, Tsurumi, Center for Sustainable Resource Science, Yokohama, Japan (GRID:grid.7597.c) (ISNI:0000000094465255); University of Würzburg, Biocenter, Institute for Molecular Plant Physiology and Biophysics, Julius‐von‐Sachs‐Institute, Würzburg, Germany (GRID:grid.8379.5) (ISNI:0000 0001 1958 8658)
3 RIKEN, Tsurumi, Center for Sustainable Resource Science, Yokohama, Japan (GRID:grid.7597.c) (ISNI:0000000094465255); RIKEN BioResource Research Center, Tsukuba, Japan (GRID:grid.7597.c)
4 Nagoya University, Graduate School of Bioagricultural Sciences, Chikusa-ku, Japan (GRID:grid.27476.30) (ISNI:0000 0001 0943 978X)
5 RIKEN, Tsurumi, Center for Sustainable Resource Science, Yokohama, Japan (GRID:grid.7597.c) (ISNI:0000000094465255)
6 Nara Institute of Science and Technology, Institute for Research Initiatives, Division for Research Strategy, Ikoma, Japan (GRID:grid.260493.a) (ISNI:0000 0000 9227 2257)
7 Chubu University, College of Bioscience and Biotechnology, Matsumoto-cho, Japan (GRID:grid.254217.7) (ISNI:0000 0000 8868 2202)
8 The University of Tokyo, Graduate School of Science, Bunkyo-ku, Japan (GRID:grid.26999.3d) (ISNI:0000 0001 2151 536X); RIKEN, Tsurumi, Center for Sustainable Resource Science, Yokohama, Japan (GRID:grid.7597.c) (ISNI:0000000094465255)
9 Nagoya University, Bioscience and Biotechnology Center, Chikusa-ku, Japan (GRID:grid.27476.30) (ISNI:0000 0001 0943 978X); Nagoya University, Graduate School of Bioagricultural Sciences, Chikusa-ku, Japan (GRID:grid.27476.30) (ISNI:0000 0001 0943 978X); Nagoya University, Institute of Transformative Bio-Molecules, Chikusa-ku, Japan (GRID:grid.27476.30) (ISNI:0000 0001 0943 978X)