Abstract
Plant adaptation to an environment subject to heavy snowfalls was investigated in four species of evergreen shrubs growing in a Fagus crenata forest in an area of Honshu on the Sea of Japan. These shrubs stored carbohydrates in some organs before the snowy season and were covered with snow for 4–5 months. Aucuba japonica var. borealis, Camellia rusticana, and Ilex crenata var. paludosa maintained a reserve of carbohydrates during the snowy season. In Daphniphyllum macropodum var. humile, the reserve of carbohydrates decreased during winter. The respiration rates in the first three species decreased from autumn to winter, whereas the decrease in D. macropodum was slight. It was found that the first three species could use reserve carbohydrates for the growth of new shoots after the thaw, whereas in the last species the growth of new shoots depends on high photosynthetic activity in late spring. Our findings suggest some types of matter economy in evergreen shrubs for wintering in an environment of heavy snow.
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Acknowledgements
This study was supported in part by a Grant-in-Aid (No. 06640824) from the Ministry of Education, Culture, Sports, Science and Technology, and funds from Waseda University (99A-108). We give thanks to Mr. M. Fujimaki of Matsudai Waseda Kyouryoku-Kai for his help.
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Ino, Y., Maekawa, T., Shibayama, T. et al. Two types of matter economy for the wintering of evergreen shrubs in regions of heavy snowfall. J Plant Res 116, 327–330 (2003). https://doi.org/10.1007/s10265-003-0101-y
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DOI: https://doi.org/10.1007/s10265-003-0101-y