---

作 者 ：蔡传杰 陈善娜 尹梅 周恒苍 王乔

期 刊 ：云南植物研究 2003年 25卷 06期 页码：1-3

关键词：香荚兰；水杨酸；抗逆性；

Keywords:Distribution types；Spermatophyte；Flora；Henan province,

摘 要 ：对大田栽培的香荚兰植株进行不同浓度的水杨酸(SA)处理，结果表明：较低浓度(25～100mg/L)的SA，使其叶片的SOD、POD、PAL和PPO活性增加，MDA含量降低,抗逆性增强；而较高浓度的SA(150～200mg/l)则抑制了这些酶的活性、使MDA含量升高，抗逆性减弱。

Abstract:Henan province locates in a transitional zone betweeen temperate to subtropic region from longitude 110°21′ to 116°39′ E and latitude 31°23′ to 36°22′ N.Its various physical enviroments and long geologic history made it abundant in species with complex floristic elements.The distribution pattern of the species in spermatophyte are studied in this paper.The result demonstrated that the 2953 species distributed in Henan can be divided into 15 areal types and 24 subtypes.Among them 1514 species are endemic to China and account for 5222% of total species in the region and can be divided into 22 subtypes.Except cosmopolitan species,there are 910 species belonging to tropicssubtropics,949 species belonging to typical temperate zone and 920 species belonging to the distribution from temperate zone to subtropics; each about account for 1/3 of the total species in Henan province.So it shows that its floristic characteristics appears transitional from south to north in China.

---