基本解释:大孢子
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Triploid induction in white poplar by chromosome doubling of megaspore;诱导大孢子染色体加倍选育白杨杂种三倍体XWT汉语字典
Genesis and developments of megaspore and nucellar embryo in Jiaogan ;蕉柑大孢子与珠心胚的发生发育XWT汉语字典
) at megasporogenesis stageto study the relationship between calcium andmegaspore degeneration.莴苣胚囊发育为蓼型,减数分裂形成的4个大孢子中只有合点端的一个大孢子可继续发育,其余3个大孢子从珠孔端依次退化。XWT汉语字典
Aim The development of megasporogenesis and microspore of morphological bisexual flowers of S.大孢子母细胞减数分裂产生T 形四分体和少数线形四分体。XWT汉语字典
The research included its microsporogenesis, the development of male gametophyte, megasporogenesis, the development of female gametophyte, .Schulz )的各营养器官的解剖结构,探讨了其可耐高盐环境的结构基础;首次报道了小盐芥的小孢子发生及雄配子体发育过程、大孢子发生及雌配子体发育过程、受精过程、胚及胚乳发育过程,以及上述各过程不同阶段与花蕾、花、果实外部形态的相关性。XWT汉语字典
Studies on the Megasporogenesis, Microsporogenesis and Development of Female and Male Gametophyte of Capsicum annuum L.;胚珠内为单孢原,孢原直接发育为大孢子母细胞,经减数分裂形成线形四分体,合点端倒数第2个大孢子发育为功能大孢子,经连续三次有丝分裂发育为七细胞七核的成熟胚囊,雌配子体的发育为蓼型。XWT汉语字典
A leaflike structure that bears megasporangia.(植)大孢子叶带有大孢子囊的叶形结构XWT汉语字典
The larger of two types of spores that give rise to a female gametophyte.大孢子两种孢子中较大的一种,会产生雌性配子体XWT汉语字典
A large multinucleate spore formed by union of similar gametes, as in algae or fungi.接合孢子由相似的配子结合而成的多核大孢子,如在海藻或真菌中XWT汉语字典
LOCALIZATION OF CALLOSE DURING THE OCCURRENCE OF MEGASPOROCYTE IN GASTRODIA ELATA BLUME天麻大孢子发生时胼胝质的定位观察XWT汉语字典
There is only one layer of parietal cells at the stage of sporogenous cell, megaspore mother cell and tetrad.造孢细胞,大孢子母细胞和四分体时期,周缘细胞仅1层。XWT汉语字典
The gametophyte is derived from the product of a reduction division in the megaspore mother cell.该配子体是由大孢子母细胞进行减数分裂而来。XWT汉语字典
A Technique for Mass-production of Conidia of Exserohilum Monoceras大批量生产尖角突脐孢菌分生孢子技术XWT汉语字典
Sterigma (pl. sterigmata) A fingerlike projection upon which spores are formed in most basidiomycete fungi.担孢子梗:是大多数担子菌所具有的指状突起结构,其上着生担孢子。XWT汉语字典
Producing two types of spores differing in size and sex.具异形孢子的产生大小与性别不同的两种孢子的XWT汉语字典
The inner layer of the wall of a spore.孢子内壁孢子壁的内层XWT汉语字典
telial stage冬孢子阶段, 冬孢子堆XWT汉语字典
the development of both microspores and megaspores.产生大小不同孢子的过程或现象。XWT汉语字典
Effect of Lucid Ganoderma Spores Power on Hepatocirrhosis in Rats灵芝孢子粉对大鼠肝硬化的影响研究XWT汉语字典
Isolated Microspore Culture and Plantlet Formation In heading Chinese Cabbage大白菜游离小孢子胚诱导及植株再生XWT汉语字典
The Newest Research Development of the Culture of Chinese Cabbage Free Small Spores大白菜游离小孢子培养最新研究进展XWT汉语字典
Zoosporangium (pl. zoosporangia) A sporangium that produces ZOOSPORES.游动孢子囊:产生游动孢子的孢子囊。XWT汉语字典
The spores of Diplodia pinea are one-septate, being brown in color and measured 28.5-39.9×14-17μ Inoculation tests made on young trees of Pinus massoniana,P.(bìng)原菌的特征是分生孢子双孢,褐色,大小为28.5~39.9×14~17微米。XWT汉语字典
Germinating Conditions Selection of Oospores and Development of Virulent Pure Line of Phytophthora. Sojae Through Single-Oospore Progeny Segregation;大豆疫霉菌卵孢子萌发及单卵孢株(dú)性纯系的研究XWT汉语字典
