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Nutrient cells were obtained from these pigment mutants by enzymatic method and conchocelis were got by parthenogenesis. When the conchocelis were mature and conchospores were released, they were cultured singly and picked up as F1 gametophytic thallus.
通过酶法分离突变体的营养细胞,单性生殖获得丝状体;分别使丝状体成熟并放散壳孢子,然后单株培养和筛选获得褐黄、翠绿和褐绿色子代叶状体。
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A unisexual reproductive structure of gymnospermous plants such as conifers and cycads, typically consisting of a central axis around which there are scaly, overlapping, spirally arranged sporophylls that develop pollen-bearing sacs or naked ovules or seeds.
球果单性裸子植物的生殖器,例如针叶树和铁树目植物,一般由覆满鳞片和褶皱的中心轴构成,长螺旋状排列的孢子叶,孢子叶最终成为花粉囊或裸露的孢子或种子
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A unisexual reproductive structure of gymnospermous plants such as conifers and cycads, typically consisting of a central axis around which there are scaly, overlapping, spirally arranged sporophylls that develop pollen-bearing sacs or naked ''.
球果单性裸子植物的生殖器,例如针叶树和铁树目植物,一般由覆满鳞片和褶皱的中心轴构成,长螺旋状排列的孢子叶,孢子叶最终成为花粉囊或裸露的孢子或种子
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Spore leaf ball is unisexual, individual plant of different of male and female, spermatozoon much flagellum.
状缺刻,二叉脉序。孢子叶球单性,雌雄异株,精子多鞭毛。
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azuki bean,adzuki bean,adsuki bean,red bean:红豆
"氮量计","azotometer,nitrometer" | "红豆","azuki bean,adzuki bean,adsuki bean,red bean" | "非结合子,单性孢子","azygospore"
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parthenogenetic merogony:单性卵片发育
parthenogenetic development 孤雌发育 | parthenogenetic merogony 单性卵片发育 | parthenospore 单性孢子
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strobilus:孢子叶球
第七章 裸子植物(Gymnosperm) 第一节 裸子植物的一般特征孢子叶(sporophyll)大多数聚生成球果状(strobiliform),称孢子叶球(strobilus). 孢子叶球单生或多个聚生成各种球序,通常都是单性,同株或异株;小孢子叶(雄蕊)聚生成小孢子叶球(雄球花staminate strobilus),
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azygosperm:非接合子, 单性孢子
azotogen 固氮菌剂 | azotometer 氮素计 | azygosperm 非接合子, 单性孢子
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azygosperm:单性接合孢子,无配合子,拟接合子
azygobranchiate 单侧鳃的 | azygosperm 单性接合孢子,无配合子,拟接合子 | azygospore 无性接合孢子,无配合,拟接合孢子
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azygosperm:非接合子
azygosvein奇静脉 奇静脉 | azygosperm非接合子 | azygospore非接合子 单性接合孢子 单性孢子
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azygospore:非接合孢子,拟接合孢子
azurin天青蛋白 | azygospore非接合孢子,拟接合孢子 | azygote单性合子
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Gnetales:买麻藤目
根据假花说的理论裸子植物中的买麻藤目(Gnetales)演化为柔荑花序类植物,如杨柳科(Salicaceae)等. 因买麻藤目具单性孢子叶球和杨柳科的柔荑花序相似. 因而他们认为柔荑花序类植物的无花瓣、单性、木本、风媒传粉等特征是被子植物中最原始的类型.
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parthenospore:单性孢子
parthenogenetic merogony 单性卵片发育 | parthenospore 单性孢子 | parthenote 无精生殖生物
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parti-colored:杂斑的
parthenospore 单性孢子 | parti-colored 杂斑的 | partial 局部 局部 分音 零件 部分的