坛紫菜新品系WO144-3的主要经济性状分析  

Analyzation of Main Economic Traits of Pyropia haitanensis Strain WO144-3

作　　者：赵蕊 徐燕[1,2,3] 许凯 王文磊[1,2,3] 纪德华 陈昌生 谢潮添[1,2,3] ZHAO Rui;XU Yan;XU Kai;WANG Wenlei;JI Dehua;CHEN Changsheng;XIE Chaotian(Fisheries College,Jimei University,Xiamen 361021,China;Fujian Engineering Research Center of Aquatic Breeding and Healthy Aquaculture,Xiamen 361021,China;Key Laboratory of Healthy Mariculture for the East China Sea of Ministry of Agriculture and Rural Affairs,Xiamen 361021,China)

机构地区：[1]集美大学水产学院,福建厦门361021 [2]福建省水产生物育种与健康养殖工程研究中心,福建厦门361021 [3]农业农村部东海海水健康与养殖重点实验室,福建厦门361021

出　　处：《集美大学学报（自然科学版）》2022年第5期385-391,共7页Journal of Jimei University：Natural Science

基　　金：国家重点研发项目(2018YFD0901500);福建省科技重大专项(2019NZ08003);现代农业产业技术体系MDF和MARA项目(CARS-50)。

摘　　要：对杂交选育的坛紫菜新品系(WO144-3)的生长性状、耐高温性能、叶绿素含量、藻胆蛋白含量等指标进行了测定,并与一个野生型品系(WT)进行了对比分析。结果表明:1)经过20 d培养,WO144-3品系叶状体长度从4 cm增加到138 cm,平均日增长率为17.59%,是WT品系的1.92倍;叶状体厚度为(17.41±0.33)μm,约为WT品系的70%。培养开始时,WO144-3品系长宽比约为WT品系的2倍,20 d后增加到5倍。但WO144-3品系的平均日增重率与WT品系没有显著差异。2)在30℃高水温培养10 d后,WO144-3品系叶状体的长度是WT品系的1.70倍;此外,高温处理对WO144-3品系的F_(v)/F_(m)没有显著影响,而WT品系的显著降低了59%。3)WO144-3品系的藻胆蛋白、藻红蛋白和藻蓝蛋白的含量分别为WT品系的2.05、2.74和1.42倍,但在叶绿素a和别藻蓝蛋白的含量上两品系没有显著差异。由此可得出:WO144-3是一个窄/薄叶品系,具有生长速度快、耐受高温胁迫、藻胆蛋白含量高等优点,具备应用于生产的潜力。Trait analysis is the core work of Pyropia haitanensis breeding.Therefore,the growth rate,high temperature resistance,chlorophyll and phycobiliprotein contents of the hybrid-selected strain of P.haitanensis(WO144-3)were measured in this study and compared with a wild-type strain(WT).The results suggested that:1)After 20 days of culture,the length of thalli of WO144-3 strain increased from 4 cm to 138 cm;the thallus thickness was(17.41±0.33)μm,which was about 70%of that of WT strain.The average daily growth rate was 17.59%,which was 1.92 times that of WT.At the beginning of the incubation,the thallus length/width ratio of the WO144-3 strain was about twice that of the WT strain,increasing to 5 times after 20 d.But no significant difference was found between WO144-3 and WT on the average daily weight rate.2)The thalli length of WO144-3 strain was 1.70 times that of WT strain after cultured with high temperature at 30℃for 10 days to simulate high temperature stress.In addition,the high temperature had no significant effect on the F_(v)/F_(m)of WO144-3,but decreased the F_(v)/F_(m) of WT by 59%.3)The contents of phycobiliprotein,phycoerythrin and phycocyanin of WO144-3 strain were 2.05,2.74 and 1.42 times those of WT strain,respectively.There were no significant differences between WO144-3 and WT on chlorophyll a and allophycocyanin contents.The above results indicated that WO144-3 was a narrow-leaf strain/thin thalli strain with the advantages of rapid growth,tolerance to high temperature stress and high content of phycobiliprotein,and had the potential to be used in aquaculture.

关 键 词：坛紫菜 生长性状 耐高温性能 藻胆蛋白 

分 类 号：S968.43[农业科学—水产养殖]