CAJ | 학술논문

利用光学显微镜观察了分布于广西北部湾沿岸的三种主要海草(矮大叶藻、二药藻和喜盐草)的茎叶解剖构造.结果表明:(1)三种海草的叶片结构和根状茎均有发达的气腔组织,叶肉及皮层细胞数量较少,且胞间隙明显;(2)叶肉及皮层中夹杂有纤维群,皮层薄壁细胞均有不同程度的木质化现象;(3)维管束结构简化,主要起机械支持作用而非输导功能.这些特征反映出矮大叶藻、二药藻和喜盐草对海洋环境中海浪和潮汐冲击、光等胁迫的高度适应.
이용광학현미경관찰료분포우엄서북부만연안적삼충주요해초(왜대협조、이약조화희염초)적경협해부구조.결과표명:(1)삼충해초적협편결구화근상경균유발체적기강조직,협육급피층세포수량교소,차포간극명현;(2)협육급피층중협잡유섬유군,피층박벽세포균유불동정도적목질화현상;(3)유관속결구간화,주요기궤계지지작용이비수도공능.저사특정반영출왜대협조、이약조화희염초대해양배경중해랑화조석충격、광등협박적고도괄응.
@@@@Under optical microscope ,the anatomical observations were made on the rhizomes and leaves of Zostera ja‐ponica ,H alodule uninervis and H alophila ovalis .The results were as followed :(1)well‐developed aerenchymaes and distinct intercellular space were found both at the rhizomes and leaves structure in all three seagrass species ,while mesophylls and cortical cells were less compared to the general terrestrial plants ;(2)fiber clusters were found be‐tween mesophylls and cortices ,and lignified parenchyma cells were also found inside cortices ;(3)the structures of vascular bundles ,playing a role of mechanical support rather than conducting tissue ,were simplified .The anatomical structure of leaf and rhizome in these seagrass species reflected their greatly ecological adaptability to the surrounding high‐wave and low‐light habitat .