Abstract: Thirty chromosomes were observed in rophytes of mature seaweed Undaria pinnatifida the parthenogenetic cells of fragments excised in the juvenile spowhile sixty chromosomes were found in the normal juvenile sporo- phytes. Then the female gametophytes were induced from the vegetative cells of the parthenogenesis juvenile sporophytes whose rhizoids were cut off. Nearly 100% of female gametophytes were induced at 20℃, higher than 45% at 15 ℃ and 12% at 10 ℃. The induced female gametophytes had 100% of maturation rate by being excised into fragments at 20 ℃ 15 days after culture, without significant difference between the induced female gametophytes and the normal ones （ P 〉 0.05 ）. There was also no significant difference in the production rate of young sporo- phytes between the group of crossing induced female gametophytes and normal male ones（ 88% ） and the group of crossing normal female with normal male（92% ） （P 〉 0.05 ）. The mixture of induced female gametophytes and normal male ones were excised into fragments and then spread on vinylon strings. The seedlings with length of 1 -2 mm were appearance 30 days after culture.
张泽宇, 李晓丽, 刘洋, 曹淑青. 用裙带菜孤雌生殖的幼孢子体体细胞诱导雌配子体的研究[J]. 大连海洋大学学报, 2009, 24(6): 482-486.
ZHANG Zhe-yu, LI Xiao-li, LIU Yang, CAO Shu-qing. Induction of female gametophytes by vegetative parthenogenetic cells of juvenile sporophytes in seaweed Undaria pinnatifida. Journal of Dalian Ocean University, 2009, 24(6): 482-486.
2009, Vol. 24 
