野生型与红色型坛紫菜杂交嵌合体及选育的研究   总被引：1，自引：0，他引：1  

陈昌生  王凤霞  徐燕  纪德华  谢潮添  柳佩娟  梁艳 《海洋学报》2007,29(6):101-109

以坛紫菜Porphyra haitanensis的红色型为父本,野生型为母本进行杂交,获得了不同色泽嵌合和不同嵌合方式的突变体;从中挑选出4株典型的嵌合体进行单株培养,并通过体细胞酶解,获得完整的单色突变体,然后对这些藻体进行生长发育和经济性状的比较,其结果如下:(1)杂交嵌合体的类型:红色和绿色嵌合、红色和褐黄色嵌合、翠绿色和野生色嵌合、红色和橘黄色嵌合;(2)嵌合的方式:斑点状嵌合、条状嵌合、线状嵌合、"V"字型嵌合和片状嵌合等;(3)各单色突变体的生长差异显著,红色突变体的藻体长度和鲜重增长较快,3~4 cm的幼苗在实验室培养11~15 d,日增长量为8.5~9.6 cm/d,日增重(鲜重)为0.120~0.128 g/d,明显高于其他突变体,具有较好的杂交优势和生产应用前景;(4)在高温26~31℃培养各单色突变体,耐高温能力较强的是红色突变体和绿色突变体,两者在29℃时培养10 d和30℃时培养6~7 d时,叶片出现点状腐烂,但整株藻体仍完整;褐绿色突变体和传统栽培对照组的藻体对高温的耐受能力较差,在26℃培养6 d以上就完全腐烂.以上研究结果可为坛紫菜杂交嵌合体生物学研究以及杂交优势品系的选育提供科学参考.  相似文献   

Seaweed cultivation: Traditional way and its reformation   总被引：4，自引：0，他引：4  

费修绠  鲍鹰  卢山 《中国海洋湖沼学报》1999,17(3):193-199

INTRODUCTIONSeaweedcultivationisthemosteffectivewayforobtaininglargeamountofseaweedproducts.Thoughseaweedcultivationhasahistoryofonlyafewdecades,itsdevelopmentisfast (Fei,1 996) .Thetotalproductionofcultivatedseaweedatpresentisabout 62 50× 1 0 3tonsfreshweight,ofwhichLaminariaaccountsfor 3 1 0 0× 1 0 3tons,Undaria 2 2 0 0x 1 0 3tons,Porphyra 750× 1 0 3tons,Gracilariasp .1 0 0× 1 0 3tons,EucheumaandKappaphycus 1 0 0× 1 0 3tons,otherkindofseaweeds 1 0 0× 1 0 3tons.Theestimatedtotal…  相似文献   

STUDIES ON COLOR TYPE VARIANTSFROM MUTAGENIZED PROTOPLASTS OFPORPHYRA HAITANENSIS CHANG ET ZHENG& P. YEZOENSIS UEDA (RHODOPHYCEASE )     

严兴洪 《中国海洋湖沼学报》1993,(3)

Isolated protoplasts from thalli of Porphyra haitanensis and Porphyra yezoensis were treated with colchicine or irradiated by ultraviolet (UV ). Several types of color variants were observed among the protoplast offspring. After treatment with colchicine: (1) 0.04-0.09% of red type variants in P. haitanensis were obtained; (2) The rate of red type variants and the variegated chimeral thalli composed of red type and wild type of sectors were 6.31- 1.11% in P. yezoensis. After irradiation with UV: (1) 3.5- 10.5% of red type variants in P. yezoensis were obtained: (2) 0.5-2-0% of red type variants and the variegated chimeral thalli composed of red type and wild type of sectors were obtained in P. haitanensis. Colchicine and UV's mutangenic effects on P. yezoensis protoplasts were stronger than those on P. haitanensis protoplasts. The most efficient concentration of colchicine was 0.05%. The optimal length of UV-radiation was 1/2 min (radiation distance 5 cm). The red type variants induced, by colchicine tr  相似文献   

Diurnal Variation in Pigment Content in Porphyra laciniata and Chondrus crispus and its Relation to the Diurnal Changes of Underwater Light Quality and Quantity   总被引：1，自引：0，他引：1  

Félix  López-Figueroa 《Marine Ecology》1992,13(4):285-305

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PRELIMINARY REPORT ON SUSPENSION CULTURE OF CLON OF PORPHYRA YEZOENSIS CONCHOSPORANGIAL FILAMENTS IN THE PRODUCTION OF CONCHOSPORES FOR PURPLE LAVER AQUACULTURE     

C.K.Tseng 《海洋与湖沼》1996,(6)

InSpringof1990,carposporesofboyeamsiswerecollected,gendnatedandgrewuptothefree-livingConchocelis,whichproducedconchosporangialfilaments.Allexperimentswereconductedincultureboxeswithlightandtemperaturecontrol.Theresultsofanumberofexperimentsareasfollows:1.Afterthedevelopmentofconcho-sporangialfilamellts,theycanbecultivatedalone,andnormallydevelopanddischargealargenumberofconchospores.2.Thesuspensionconchosporangialfilamentusedinpresentworkhavebeenvegetativelypropapatedmanytimesinseveralyears.…  相似文献   

紫菜体细胞发育与分化的研究   总被引：6，自引：1，他引：6  

严兴洪  王素娟 《海洋科学》1989,13(6):28-32

本文研究了紫菜体细胞的发育与分化。根据体细胞后代的形状、有无假根、颜色、色素体形状、细胞大小和排列方式以及最终分化趋势等,墰紫菜体细胞分8种发育类型。各种发育类型的百分数与藻体的日龄、大小及部位有关。日龄、体长越长,正常苗百分数越低,畸形苗和细胞团的百分数越高。随着藻体部位的上移,正常苗和畸形苗百分数下降,细胞团百分数上升。  相似文献   

温度、光强和盐度对坛紫菜体细胞发育的影响     

严兴洪  王素娟 《热带海洋学报》1993,(1)

坛紫菜Porphyra haitanensis叶状体酶解单离体细胞发育的最适温度为25℃。在10—25℃范围内,随着温度增高,体细胞发育成正常苗的百分率增高,苗生长加快,苗的假根数目增多。体细胞发育适宜的光强为2000—3000lx,过高或过低的光强均会抑制苗假根形成和生长,导致正常苗数量减少。体细胞发育和苗生长最适盐度为33.3,但在20.3—46.4范围内,盐度越高,发育成正常苗百分率越高。  相似文献   

絮凝剂对紫菜酶解单细胞的絮凝作用及对其生长的影响     

周立冉  王海  戴继勋 《海洋科学》1997,21(6):46-49

就解决紫菜养殖和制饵的生产实践中出现的单细胞收集困难问题进行了初步研究。首次尝试利用细胞絮凝剂收集大型海藻的酶解单细胞，检查了几种常规絮凝剂及新型生物絮凝剂对其絮凝作用，观察了对其生长发育的影响。实验中发现常规絮凝剂明显具有明显的絮凝作用，浓度过高时有致畸作用；饱和石灰水和甲壳胺絮凝效果较好，但甲壳爱具有阻碍细胞发育的特点；Ｃａ＾２＋Ｍｇ＾２＋基本无絮凝作用；Ｆｅ＾３＋在高浓度时有效畸作用。  相似文献   

Induction Effect and Genetic Analysis of NG to Thallus of Porphyra     

Xu Pu  SHEN Songdong  FEI Xiugeng  Zhang Xuecheng  Zhu Jianyi 《海洋通报(英文版)》2002,4(2)

The young thalli of Porphyra yezoensis and P. haitanensis are induced by N-Methy-N‘-Nitro-N-Nitrosoguanidine (NG), a strong mutagen to induce the mutant of chromatophore. It is showed that no mutants have been investigated in all control groups,while in the induced groups, it is easy to find mutant cells or mutant cell masses in the thallus.The pigmentation mutants may be the result of NG inducement. The mutant rate increases obviously with the mutagen concentration or by prolonging the induction time. Within the scope of experiment, the inducement effects of Porphyra yezoensis are raised from 11.2% to 28.7%, and those of P. haitanensis from 10.1% to 20.2%. According to our experiments, the amount of mutant cells in the same area does not increase with the induction intensity The amount of mutant cells in every group of inducement of both species of Porphyra changes very little with the fixed fields check method. The lowest dose (25μg/mL) of this experiment has a high mutant rate. The mutant rate shows the percentage of mutant cells in all the survived cells, while the amount of mutant cells reflects the effect of inducement. Thus the optimum induction concentration of NG is 25μg/mL, and the optimum induction time is 30minutes.  相似文献   

悬浮生长的条斑紫菜膨大藻丝无性系的培养及产生壳孢子的研究初报   总被引：4，自引：0，他引：4  

孙爱淑  曾呈奎 《海洋与湖沼》1996,27(6):667-669

１９９０年以来，采用多因子正交试验方法，对悬浮生长的条斑紫菜膨大藻丝即孢子囊技生长发育规律进行研究。通过细胞工程方法，建立悬浮培养的膨大藻丝无性系，并使该无性系长年大量繁殖。经过对膨大藻丝的生长发育调控，可使膨大藻丝适时，大量放散壳孢子。  相似文献