摘要
研究了红树科Ｒｈｉｚｏｐｈｏｒａｃｅａｅ的木榄Ｂｒｕｇｕｉｅｒａｇｙｍｎｏｒｒｈｉｚａ、海莲Ｂｒｕｇｕｉｅｒａｓｅｘａｎｇｕｌａ、角果木Ｃｅｒｉｏｐｓｔａｇａｌ和秋茄Ｋａｎｄｅｌｉａｃａｎｄｅｌ；马鞭草科Ｖｅｒ－ｂｅｎａｃｅａｅ的白骨壤Ａｖｉｃｅｎｎｉａｍａｒｉｎａ；紫金牛科Ｍｙｓｉｎａｃｅａｅ的桐花树Ａｅｇｉｃｅｒａｓｃｏｒ－ｎｉｃｕｌａｔｕｍ和海桑和Ｓｏｎｎｅｒａｔｉａｃｅａｅ的海桑Ｓｏｎｎｅｒａｔｉａｃａｅｓｅｏｌａｒｉａ次生木质部的结构与进化关系，红树科植物的次生木质部结构比马鞭草科、紫金牛科和海桑科的植物原始；红树科中的竹节树属Ｃａｒａｌｌｉａ和山红树属Ｐｅｌｌａｃａｌｙｘ为陆生的非红树植物，它们次生木质部结构比海生的红树料红树植物木榄属、秋茄属、角果木属更为进化，即导管为单穿孔、管间纹孔式为互利式纹孔。单穿孔的导管存在，是长期的进化过程中，遇到干旱环境而产生的特化现象，而海生红树科植物进入海滩沼译后，木质部仍具有原始性状。
A study on the relation between the evolution and structure of secondary xylem of the mangrove Bruguiera sexangula, Bruguiera gymnorrhiza, Ceriops tagal and Kandelia candel (Rhizophoraceae), Avicennia marina (Verbenaceae) , Aegiceras corniculatum (Mysinaceae) and Sonneratia caeseolaria (Sonneratiaceae) is made. The results are shown as follows: Secondary xylem of mangrove species in Rhizophoraceae is more primitive than those of mangrove specie. in Verbenaceae, Mysinaceae and Sonneratiaceae , Carallia and Pella- calyx belong to Rhizophoraceae of terrestrial plants but are not mangrove species and they have more evolu- tionary secondary xylem, namely, simple perforation vessel and alternate pit-pair, than mangrove species such as Bruguiera, Ceriops and Kandelia (Rhizophoraceae). The form of simple perforation vessel is a specialization phenomenon in dry environment during the long evolution. But the secondary xylem characteristics of man- grove species in Rhizophoraceae remained primitive, after they entered the seashore wetlands.
出处
《海洋学报》
CAS
CSCD
北大核心
1998年第4期97-102,共6页
基金
国家自然科学基金
