不同光质对坛紫菜果孢子和壳孢子萌发的影响  

Effects of different light-qualities on the germinationof carpospores and conchospores of Pyropia haitanensis

作　　者：刘嘉嘉 梁小君 周琳琳 钟晨辉[1,3] 郭辰涛 唐隆晨 林琪 LIU Jiajia;LIANG Xiaojun;ZHOU Linlin;ZHONG Chenhui;GUO Chentao;TANG Longchen;LIN Qi(Key Laboratory of Cultivation and High-value Utilization of Marine Organisms in Fujian Province,Xiamen 361013,China;Shanghai Engineering Research Center of Aquaculture,Shanghai Ocean University,Shanghai 201306,China;National and Local Joint Engineering Research Center of Marine Biological Seed Industry Technology,Xiamen 361013,China)

机构地区：[1]福建省水产研究所、福建省海洋生物增养殖与高值化利用重点实验室,福建厦门361013 [2]上海海洋大学、水产种质资源发掘与利用教育部重点实验室,上海201306 [3]海洋生物种业技术国家地方联合工程研究中心,福建厦门361013

出　　处：《应用海洋学学报》2023年第3期409-415,共7页Journal of Applied Oceanography

基　　金：现代农业产业技术体系建设专项(CARS-50);福建省科技计划项目(2019R1013-8)。

摘　　要：本研究探究了白、蓝、红、绿光4种光质对坛紫菜(Pyropia haitanensis)果孢子和壳孢子萌发的影响。结果表明,与白光相比,用绿光培养时,果孢子萌发管分枝形成速度、萌发管生长速度,以及壳孢子的细胞分裂速度均相对较快,用红光与蓝光培养时则相对较慢。不同光质对坛紫菜果孢子和壳孢子的存活率无显著影响,但能造成萌发体色泽呈现明显差异。刚从孢子囊释放出来的两种孢子均呈黄褐色,经白光培养的两种孢子以及蓝光培养的果孢子,其萌发体颜色加深至鲜红色,蓝光培养的壳孢子萌发体颜色加深尤为明显,最终呈深紫红色,而红光和绿光培养的两种孢子颜色变浅,最终呈浅黄褐色。研究表明,绿光培养可能不利于坛紫菜孢子萌发过程的色素积累,但有利于孢子萌发及萌发体的生长。In this study,influences of different light qualities(White light,WL;Blue light,BL;Green light,GL;Red light,RL)on the germination processes of carpospores and conchospores of Pyropia haitanensis were investigated.Results showed that compared to those of WL-grown spores,growth and branch formation of germ tubes in carpospores and cell divisions in conchospores were accelerated by GL but retarded by RL and BL.In addition,different light qualities had no significant influence on survival rates of both carpospores and conchospores but apparently causing color changes.Two spores released from sporangia were originally yellowish-brown in color.The germling colors of two spores grown under WL and of the carpospores grown under BL became bright red.Even the color of chonchospores changed into mulberry much obviously under BL in the late stages of the culture.However,all the spores grown under RL and GL were discolored into light yellowished-brown.Results of this study indicated that GL might have negative effects on the pigment accumulation but favored the germination and the germling of carpospores and conchospores.

关 键 词：海洋生物学 坛紫菜 光质 果孢子 壳孢子 萌发 

分 类 号：P735[天文地球—海洋生物学]