Calcification Response of Coccolithophores to Eutrophication
發(fā)布時間:2025-02-11 20:21
顆石藻細(xì)胞是單細(xì)胞光合海藻類,珊瑚藻類主要是海洋單細(xì)胞浮游植物。顆石藻蟲物種海洋球石藻是現(xiàn)代海洋中分布最廣泛的物種。因為它們可以通過光合作用消化碳和碳酸鈣(球石),所以它們的物種遍布全世界。它們是世界上最大的碳群,也是最大的主要生產(chǎn)者之一。隨著人口的增加,人類越來越依賴海洋作為食物來源和生活。因此,我們的文明越來越容易受到海洋系統(tǒng)的負(fù)面影響。關(guān)于碳和氮在細(xì)胞水平上相互作用的信息缺乏與生態(tài)相關(guān)的浮游植物物種,我們研究了硝酸根的有效性對廣泛分布的海洋球石藻有害藻華的碳和氮含量的影響。這些自然現(xiàn)象,對捕魚生產(chǎn),公共衛(wèi)生和現(xiàn)代工業(yè)產(chǎn)生了顯著的負(fù)面影響。細(xì)胞在足夠的(~280uM)和環(huán)境(~10uM)硝酸根離子中培養(yǎng)。后者代表了典型的地表水硝酸鹽濃度。在過去的幾十年里,硝酸鉺的全球頻率,規(guī)模和地理范圍都有所增加。有人提出,全球變化和富營養(yǎng)化是主要趨勢。因此,本文的第一部分重點(diǎn)關(guān)注海洋球石藻可能形成的環(huán)境條件。使用分批培養(yǎng)技術(shù),提高溫度和營養(yǎng)素負(fù)荷(磷酸鹽和硝酸鹽)。海洋球石藻(PMLB92/11)也在氮?dú)庀路峙囵B(yǎng)。作為磷鈣化石的限制,多元化廣泛分布著一批海洋微藻,生物生產(chǎn)。由球孢霉產(chǎn)生植物海洋球...
【文章頁數(shù)】:69 頁
【學(xué)位級別】:碩士
【文章目錄】:
ABSTRACT
摘要
1 Introduction
1.1 The Coccoliths
1.1.1 Coccolith composition and structure
1.1.1.2 Coccolith formation crystal growth
1.1.1.3 Number of coccoliths produced by and lost from the cell
2 Importance of topic
3 Literature Review
3.1 Harmful Algal Blooms
3.2 The main biological groups that produce algal blooms
3.2.1 Diatoms
3.2.2 Dinoflagellates
3.2.3 Cyanobacteria
4 Eutrophication and coccolith growth
5 Calcification and photosynthesis
5.1 Irradiance effects on calcification
5.2 The calcification photosynthesis (CIP) ratio
5.3 Carbon sources in photosynthesis
6 Research background
7 Thesis aims and objectives
8 Materials and methods
8.1 Batch culturing and sample collection
8.2 Quantifying physiological factors
8.3 Sample dilution process for Poc/Pic
8.4 Spectroscopy(FT-IR) and Ultraviolet-visible spectroscopy(UV-Vis)
8.5 Sample collection for (FT-IR and UV-VIS)
9 Technical Rout
10 Results & Discussion
10.1 Results
11 Discussion
Conclusion
Acknowledgement
References
本文編號:4033800
【文章頁數(shù)】:69 頁
【學(xué)位級別】:碩士
【文章目錄】:
ABSTRACT
摘要
1 Introduction
1.1 The Coccoliths
1.1.1 Coccolith composition and structure
1.1.1.2 Coccolith formation crystal growth
1.1.1.3 Number of coccoliths produced by and lost from the cell
2 Importance of topic
3 Literature Review
3.1 Harmful Algal Blooms
3.2 The main biological groups that produce algal blooms
3.2.1 Diatoms
3.2.2 Dinoflagellates
3.2.3 Cyanobacteria
4 Eutrophication and coccolith growth
5 Calcification and photosynthesis
5.1 Irradiance effects on calcification
5.2 The calcification photosynthesis (CIP) ratio
5.3 Carbon sources in photosynthesis
6 Research background
7 Thesis aims and objectives
8 Materials and methods
8.1 Batch culturing and sample collection
8.2 Quantifying physiological factors
8.3 Sample dilution process for Poc/Pic
8.4 Spectroscopy(FT-IR) and Ultraviolet-visible spectroscopy(UV-Vis)
8.5 Sample collection for (FT-IR and UV-VIS)
9 Technical Rout
10 Results & Discussion
10.1 Results
11 Discussion
Conclusion
Acknowledgement
References
本文編號:4033800
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