Basic studies on the processes of reproduction and colony formation in corals.

珊瑚繁殖和群体形成过程的基础研究。

• 批准号: 59440005
• 负责人: YAMAZATO Kiyoshi
• 金额: $ 11.84万
• 依托单位: University of the Ryukyus
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for General Scientific Research (A)
• 财政年份: 1984
• 资助国家: 日本
• 起止时间: 1984 至 1986
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-59440005/
• 关键词: Sexual reproduction in corals; Asexual reproduction in corals; Ultrastructure of coral skeleton; Skeletogenesis in corals; Mechanism of disc detachment in Fungia; Fertilization in Lobophytum; Embryogenesis in Lobophytum; フトウネタケの初期発生; サンゴ; 生殖; 骨格

1. Growth rates and other aspects of polypal growth in the colonies of Galaxea fascicularis were studied. In addition, reproductive processes of this species, Porites (Synaraea) rus and Pocillopora damicornis were elucidated.2. Newly settled polyps of Pocillopora damicornis were studied by transmittance and scanning electron microscope and the microstructure of both soft tissues and skeleton were analyzed with special reference to the initial stages of calcium carbonate crystallization.3. Calcium carbonate crystallization processes of the regenerating skeletons of Acropora hebes were examined and elucidated to parallel the normal skeleton formation processes. In addition, calcium binding capacity of calcium binding substance obtained from alcyonacean and scleractinian corals was studied and positive results were obtained.4. Processes of detachment of discs from stalks of Fungia fungites was studied with scanning electron microscope and found that crystal to powder transformation at the detaching site was found reponsible for detachment, which in turn was probably induced by acid production of calicoblastic epithelial tissues. Changes in mechanical strength in the course of detachment was studied also.5. Fertilization, embryogenesis and metamorphosis of the larvae of Lobophytum crassum and Galaxea fascicularis were studied.6. Transformation of nematocysts in the tentacles of Galaxea fascicularis during the course of changes from the normal to sweeper were studied. Nematocysts with slender capsules and long shafts of threads transformed into those with fat capsule and short and obsure shaft, which were proposed to be included in b-rhabdoid group.

1.研究了束状Galaxea fascicularis群体中息肉生长的生长速率和其他方面。此外，还对该种、滨珊瑚Porites（Synaraea）罗斯和红角滨珊瑚Pocilloppora damicornis的生殖过程进行了研究.利用透射电镜和扫描电镜对新沉积的珊瑚珊瑚虫珊瑚虫进行了研究，分析了珊瑚虫珊瑚虫软组织和骨骼的显微结构，特别是碳酸钙结晶的初始阶段.研究了轴孔珊瑚（Acropora hebes）再生骨骼的碳酸钙结晶过程，并阐明其与正常骨骼形成过程相似。此外，对从软珊瑚和石珊瑚中提取的钙结合物质的钙结合能力进行了研究，得到了肯定的结果.用扫描电镜观察了蕈菌（Fungia fungites）盘状体从柄上脱落的过程，发现脱落部位的晶体向粉末转化是导致盘状体脱落的原因，而这种转化可能是由成钙细胞上皮组织产酸引起的。研究了脱附过程中机械强度的变化.研究了厚叶藓和束状乳藓幼虫的受精、胚胎发生和变态过程.本文研究了束状乳水蚤触角内的囊泡在由正常向清扫虫转变过程中的转化。由细长囊、长轴的线虫囊转变为囊厚、轴短而不明显的线虫囊，拟归入b-横纹肌群。

项目成果

UEHARA, Tsuyoshi: "General description of developmental stages in a soft coral Lobophutum crassum Marenzeller." Galaxea. 6. 185-193 (1987)

UEHARA, Tsuyoshi：“软珊瑚 Lobophutum crassum Marenzeller 发育阶段的一般描述。”

ISA, Yeishin: "Scanning electron microscopy on the regenerating skeletal tip of a reef-building coral, Acropora hebes (Dana)." Galaxea. 6. 153-162 (1987)

ISA，Yeishin：“扫描电子显微镜观察造礁珊瑚 Acropora hebes (Dana) 的再生骨骼尖端。”

Proc.【V】th Int.Coral Reef.Congress. Vol.2. P.261 (1985)

论文【V】国际珊瑚礁大会第 261 卷（1985 年）。

YAMASU, Terufumi: "Fine structure of the newly settled juviniles of a reef building coral, Pocillopora damicornis (Linnaeus)." Galaxea. 6. 119-124 (1987)

YAMASU, Terufumi：“造礁珊瑚 Pocillopora damicornis (Linnaeus) 新定居幼体的精细结构。”

Yamazato,Kiyoshi: Galaxea. 6. 119-124 (1987)

山里、清：银河。