@article{oai:soar-ir.repo.nii.ac.jp:00012099,
 author = {SHIBATA,  OSAMU and KONISHI,  TORU},
 issue = {2},
 journal = {信州大学理学部紀要},
 month = {Mar},
 note = {The number of pollen nuclei was determined on 133 species distributed along the slope of mountain, and the number of species with trinucleate pollen had a tendency to increase at high altitudes more than at low altitudes. From the relation between the number of pollen nuclei and the strength of the environmental stress, species with trinucleate pollen were statistically concluded to distribute under the higher stress of UV radiation or temperature than the case of species with binucleate pollen, and the distribution in trinucleate species was closely related to temperature more than UV radiation. Various physiological and biochemical characters in trinucleate pollen, which have been suggested to be effective to avoid UV radiation stress, seem to be in the same situation also to temperature stress., Article, 信州大学理学部紀要 24(2): 1-12(1990)},
 pages = {1--12},
 title = {Vertical Distribution of Plant Species with Binucleate or Trinucleate Pollen Influenced by Ultraviolet Radiation and Temperature.},
 volume = {24},
 year = {1990}
}