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Comparison of photosynthesis and leaf ultrastructure on two black locust (Robinia pseudoacacia L.) |
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| Institution: | 1. College of Life Science, Northeast Forestry University, Harbin 150040, PR China;2. College of Life Science, Inner Mongolia University for the Nationalities, Inner Mongolia 028000, PR China;1. Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Photochemistry, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China;2. Key Laboratory of Photobiology, Institute of Botany, Chinese Academy of Sciences, Beijing 100093, China;1. College of Plant Sciences, Tarim University, Alar 843300, China;2. Key Laboratory of Biological Resource Protection and Utilization of Tarim Basin, Xinjiang Production and Construction Group, Alar 843300, China;1. VTT Technical Research Centre of Finland, P.O. Box 1000, FI-02044 VTT, Finland;2. MTT Agrifood Research Finland, Plant Production Research, FI-31600 Jokioinen, Finland;3. Yara Suomi, P.O. Box 900, FI-00181 Helsinki, Finland;1. Key Laboratory of Radiation Physics and Technology of Education Ministry of China, Institute of Nuclear Science and Technology, Sichuan University, Chengdu 610065, China;2. Institute of Nuclear Physics and Chemistry, China Academy of Engineering Physics, Mianyang 621900, China;3. College of Physics, Optoelectronics and Energy, Soochow University, Suzhou 215006, China |
| Abstract: | Polyploidy is common in many plant species. Up to date, few studies were reported on photosynthesis and leaf anatomy of tetraploid black locust (Robinia pseudoacacia L.), which has considerable value for agriculture and forest. This study compared photosynthesis and leaf ultrastructure on two black locusts. The values of Pn and Ci in tetraploid were significantly higher than those in the corresponding diploids. Significantly lower stomata dimensions (6.0 μm in length and 2.4 μm in width) and tomatal density were observed in 4×. Leaf trichome density was statistically different between 2× and 4×. However, no substantial difference in the ultrastructure of chloroplasts and mitochondria between diploid and tetraploid was observed under any stress. These ultrastructural characteristics may contribute to tetraploid a better protection mechanism than diploid. |
| Keywords: | Photosynthesis Anatomic Diploid Tetraploid Cl"} {"#name":"keyword" "$":{"id":"kwrd0050"} "$$":[{"#name":"text" "_":"chloroplast stomatal conductance Le"} {"#name":"keyword" "$":{"id":"kwrd0070"} "$$":[{"#name":"text" "_":"lower epidermis Li"} {"#name":"keyword" "$":{"id":"kwrd0080"} "$$":[{"#name":"text" "_":"liposomes LSD"} {"#name":"keyword" "$":{"id":"kwrd0090"} "$$":[{"#name":"text" "_":"lowest standard deviations M"} {"#name":"keyword" "$":{"id":"kwrd0100"} "$$":[{"#name":"text" "_":"mitochondria osmium tetraoxide PFD"} {"#name":"keyword" "$":{"id":"kwrd0120"} "$$":[{"#name":"text" "_":"photon flux density net photosynthetic rate Pt"} {"#name":"keyword" "$":{"id":"kwrd0140"} "$$":[{"#name":"text" "_":"palisade tissue St"} {"#name":"keyword" "$":{"id":"kwrd0150"} "$$":[{"#name":"text" "_":"spongy Sg"} {"#name":"keyword" "$":{"id":"kwrd0160"} "$$":[{"#name":"text" "_":"starch grain UE"} {"#name":"keyword" "$":{"id":"kwrd0170"} "$$":[{"#name":"text" "_":"upper epidermis YE"} {"#name":"keyword" "$":{"id":"kwrd0180"} "$$":[{"#name":"text" "_":"vacuole |
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