Explanation of the diversity of photobionts in Cladia aggregate (Lichenes)

从日本部分地区采集的Cldia聚合体中分离到光生物。从鹿儿岛和广岛采集的克拉迪亚聚合体中分离到3种光生物。从日本其他地区采集的光生生物中，分离出1至2个光生生物。它们分别是石松树、团头树和梨形树。结果表明，聚合山红景天的光生物多样性初步显现。仅在一个群落中就发现了三种光生物，这在世界上是新发现的。光生物在一个群落中的分布是均匀的。通过对克拉迪亚的组织培养，一些愈伤组织在麦芽酵母培养基上培养一年后就形成了小的叶状体状的花丝。在实验室条件下，对从树皮无子囊中分离到的真菌孢子进行了培养和保存。在不久的将来，它们被用于克拉迪亚聚合体的重新合成。光生物的再合成实验对于弄清该菌中光生物群的多样性具有重要意义。

Photobionts were isolated from Cladia aggregata collected from some districts in Japan. From one podetium of Cladia aggregata collected from Kagoshima and Hiroshima, three species of photobionts were isolated. From podetia collected from other districts in Japan, one to two photobionts were isolated. They were Trebouxia erici, T.glomerata and T.pyriformis. As the results, the diversity of photobiont in Cladia aggregata was became clear at the first. The existence of three species of photobionts in only one podetium was newly found in the world. The distribution of photobionts in one podetium was uniform. By the tissue culture of Cladia aggregata, small thallus-like filaments were formed from some callus after one year on Malt-Yeast medium. Spores of mycobiont isolated from apotecia of Cladia aggregta were cultured and deposited in laboratory. They were used in resynthesis of Cladia aggregata in near future. The experiment of resynthesis is very important to make clear the diversity of photobionts in Cladia aggregata.