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1
題名:The Involvement of Calcium in Heat-induced Coral Bleaching    
鈣離子參與珊瑚受熱白化過程之研究
著者:Shiao-Ping Huang(黃小萍) ;Ku-Lin Lin(林谷霖) ;Lee-Shing Fang(方力行)
出版地區:台灣
出版城市:台北市
學科:生命科學 ; 醫學綜合
關鍵字:珊瑚白化 ; 鈣離子濃度 ; 胞吐作用 ; Coral bleaching ; Calcium concentration ; Exocytosis
刊名:Zoological Studies 
頁碼:89-94
語言:英語
摘要: 中文摘要PDF ; 英文摘要PDF

珊瑚會因高溫而導致白化,然而白化過程中共生藻從珊瑚細胞釋放的機制,則尚不明瞭,我們發現珊瑚細胞會因高溫而使得其細胞內鈣離子濃度提高,而且隨加熱時間增長而蓄積,同時使用鈣離子螯合物EGTA及cation ionophore A23187去除珊瑚細胞內外之鈣離子,使得珊瑚因高溫而白化之程度降低,因此海水中鈣離子的濃度與高溫導致的白化有密切關係;研究結論顯示鈣離子訊號在珊瑚白化細胞層次中扮演樞要的角色。
Coral bleaching is inducible by elevated sea water temperature. At the subcellular level the mechanism of bleaching is unclear. We investigated the relationship between intracellular calcium concentration and bleaching induced by elevated temperature. Intracellular calcium concentration rose in proportion to the duration of heat treatment. Bleaching was inhibited after applying the calcium chelator EGTA and the cation ionophore A23187 to deplete extra- and intracellular calcium concentrations. Further, heat-induced coral bleaching was inhibited when the ambient calcium concentration in sea water was reduced or depleted. The extent of bleaching was correlated with the calcium concentration of the sea water. These findings indicate that calcium plays a pivotal role in the subcellular mechanism of coral bleaching.


    

本卷期目次
Zoological Studies 
Conversion of Cholesterol to Sex Steroid-like Substances by Tissues of Mictyris brevidactylus in Vitro/ Jin-Taur ShihChing-Fong Liao
Review of the Marine Gobiid Genus, Amblyeleotris (Pisces: Gobiidae) with Seven New Records from Taiwan/ Jeng-Ping ChenI-Shiung ChenKwang-Tsao Shao
Juvenoid Biosynthesis by Corpora Allata of Adult Female and Male Loreyi Leafworm, Mythimna loreyi Duponchel (Lepidoptera: Noctuidae)/ Rong KouMeng-Ping Tu
Purification and Characterization of Vitellin from the Freshwater Giant Prawn, Macrobrachium rosenbergii/ Ying-Nan ChenChing-Ming Kuo
Shallow-water Echinoderms of Taiping Island in the South China Sea/ Ming-Shiou Jeng
A New Species of the Genus Coprophilus Latreille, 1829 from the High Mountain Elevations in Taiwan, with Comments on Zonyptilus Motschulsky, 1845 (Coleoptera: Staphylinidae: Oxytelinae)/ Ale? Smetana
Heterochromatin Accumulation and Karyotypic Evolution in Some Dipteran Insects/ Visut Baimai
The Involvement of Calcium in Heat-induced Coral Bleaching/ Shiao-Ping HuangKu-Lin LinLee-Shing Fang
Morphology and Ultrastructure of the Alimentary Canal of Oriental Fruit Fly Bactrocera dorsalis (Hendel) (Diptera: Tephritidae) (I): The Structure of the Foregut and Cardia/ Wen-Yung LeeMei-Er ChenTai-Lang Lin
 
   
 
   

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