Ion micro-distribution in varying aged leaves in salt-treated cucumber seedlings.

Na distribution is one of the most important strategies for plant resistance to salt stress. The way of Na compartmentation in different aged leaves has been controversial, especially at the cell and sub-cellular level. The roles that Na and K/Na play the key role in photosynthesis need to be further verified.

A faunistic study of genus Sharp, 1882 of China (Coleoptera, Hydrophilidae).

Sharp, 1882 is newly reported from the Chinese Mainland. A new species, , is described from China (Yunnan). Watanabe, 1987 is reported from Hong Kong, the first record outside Japan.

Effect of root length on epicotyl dormancy release in seeds of Paeonia ludlowii, Tibetan peony.

Background And Aims: Epicotyl dormancy break in seeds that have deep simple epicotyl morphophysiological dormancy (MPD) requires radicle emergence and even a certain root length in some species. However, the mechanisms by which root length affects epicotyl dormancy break are not clear at present. This study aims to explore the relationship between root length and epicotyl dormancy release in radicle-emerged seeds of Tibetan peony, Paeonia ludlowii, with discussion of the possible mechanisms.