期刊论文

Huang, Y.-Y.

中文

植物生理与分子生物学学报

1671-3877

2012

48

10

986-992

10.13592/j.cnki.ppj.2012.10.012

国家自然科学基金（30260007）；

本校为第一机构

考查广西百色西林县叉孢苏铁和广西百色田东县锈毛苏铁的生态环境,结合观测其叶片的内部结构来探讨其与生境的适应性。结果表明叉孢苏铁群落乔木和灌木均9种,藤本8种,草本18种,蕨类2种,空间格局明显;锈毛苏铁群落乔木和灌木均5种,草本6种,蕨类4种,空间格局不明显。两种苏铁的羽片均由表皮、栅栏组织、海绵组织和副转输组织构成;叶轴均由表皮、厚壁组织、薄壁组织和维管组织构成。不同之处在于,锈毛苏铁的羽片、角质层、栅栏组织和叶轴的厚壁组织均较叉孢苏铁的厚,分别是叉孢苏铁的1.82倍、2.32倍、1.79倍和2.45倍左右;锈毛苏铁叶片的表皮之下有下皮层、各组织中有丰富的异细胞,而叉孢苏铁的无或...

The present study investigated ecological environment and leaf structure of Cycas segmentifida in Xilin county of Guangxi and Cycas ferruginea in Tiandong county of Guangxi, their adaptability was also discussed. The main results showed that C. segmentifida community included 9 arbors, 9 shrubs, 8 vines and 18 herbs and 2 ferns, and spatial structure was obvious. C. ferruginea community included 5 arbors, 5 shrubs, 6 herbs and 4 ferns, while spatial structure was not obvious. The leaf of two Cycas composed of epidermis, palisade tissue, sponge tissue and accessory transfusion tissue. The rachi...