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The investigation of the structures of reproductive organs,megasporogenesis,microsporogenesis and the development of male and female gametophyte in Dendrocalamus sinicus are made using normal paraffin method in this article.

通过石蜡切片的方法对巨龙竹生殖器官结构、大小孢子的发生和雌、雄配子体的发育过程进行了观察研究。巨龙竹为一心皮组成的单室单子房,子房内具有一个胚珠,倒生、双珠被、厚珠心。

Sun called Dream of Dictyophora mushroom, is not to the End of Dictyophora embryo, was milky white, with mushrooms, braised can enjoy the tune, Qingdun, for pot expected, consumption, import Qingxiang tender crisp; outsourcing and was Jungai, A milky white translucent mesh, known as bamboo-sun flowers, cooking can be braised, steamed, for pot expected, consumption, import crisp Weixian; whole fresh eggs at Sun, first wash spores, eggs, to the black part of cooking Can be braised, steamed, with chickens, ducks Qingdun, consumption of imported Qingxiang tender crisp, its unique flavor.

梦荪又叫竹荪菇,是未出完的竹荪胚,呈乳白色,磨菇状,享调可红烧、清炖,可作火锅料,食用时入口清香嫩脆;外包被和菌盖,呈乳白色半透明网状,又叫竹荪花,烹调可红烧、清蒸、可作火锅料,食用时入口松脆味鲜;竹荪蛋全食,先洗净孢子,即蛋内转黑色部分,烹调可红烧、清蒸,可与鸡、鸭清炖,食用入口清香嫩脆,其味独特。

In this paper, the biological characteristics of florescence, spikelet and inflorescences structure, morphogenesis formation of inflorescence, megasporogenesis and the development of female gametophytes were studied systematically by using anatomy structure, scanning electron microscopic and paraffin section methods. The results were as followed:(1) Phyllostachys praecox was the bamboo flowering fragmentarily; the cultivation changed the characteristic of flowering; the plantlets of flowering were complex and splitted into three kinds: the plantlet flowering before continued flowering; the plantlet flowering before stopped flowering and the plantlet changed into flowering. The inflorescence of Ph. praecox was indefinite inflorescence or called false inflorescence, and actually it was flower stress structure. Its basal unit was pseudospikelet with two kinds: apical spikelet and lateral spikelet. The floret had one lemma, one pelea, three stamens, one pistil and three lodicules.

本研究综合运用形态解剖学、扫描电镜、石蜡切片等技术手段,对雷竹花期生物学特性、小穗与花序构造、花序形态建成过程、大孢子发生与雌配子体发育等进行了较为系统的研究,结果表明:(1)雷竹为零星开花竹种,耕作条件对其开花特性具有重要影响;开花植株类型复杂多样,可以分为以前开过花现在继续开花、以前开过花现在停止开花以及以前未开过花现在转为开花等3种类型;雷竹花序为无限制花序或称&假花序&,实为花枝结构,基本单位为&假小穗&;假小穗有顶生和侧生之分;小花具内外稃各1枚,雄蕊3,雌蕊L,另具3枚大小不等之鳞被。

On the basis of results of our test,we suggest that low temperature pretreatment changes content of endogenous IAA and iPA of anther,thus interrupts previous developmental direction of pollen and induces microspores develop from a gametophytic way to a sporophytic way.

根据实验结果,推测低温预处理改变了花药内源IAA和iPA含量,阻断了花粉原来的发育方向,使其由配子体的发育途径转向孢子体的发育途径。

Protozoans of the order Gregarinida that are parasitic within the digestive tracts of various invertebrates including arthropods and annelids.

簇虫任一种簇虫孢子虫类的原生动物,寄生于各类无脊椎动物,包括节肢动物和环节动物的消化道内

Morphology of sexual reproduction abortion in'High Noon', a distant hybridization cultivar of tree peonies(P.delavayi var. lutea×P. suffruticasa), was systematically investigated with light microscopy and cross. The results indicated that:(1)The stamens matured earlier than the gynoecia and pollens dispersed at the early stage of anthesis but the rate of normal 2-celled pollens were merely 2.41%.

采用光镜和杂交等方法对牡丹远缘杂交一代品种'正午'有性生殖败育进行系统形态学观察发现:(1)雄蕊较雌蕊先成熟,初花期即散粉,正常2-细胞花粉仅占2·41%,且花粉在多种培养液中、在自身和其它两种柱头上均不萌发;柱头在谢花期大量分泌粘液,进入最佳授粉状态;(2)同一胚珠中多个大孢子母细胞减数分裂高度不同步,胚囊发育与受精延迟,部分胚乳游离核在细胞化时期分裂异常;(3)自花及品种内异花授粉不结实,天然授粉结实率为0·053‰~0·130‰。

Lomasome An infolding of the plasma membrane found particularly in fungal hyphae and spores, and also in some algae and higher plants.

质膜外泡:原生质膜的内折,尤其存在于真菌的菌丝和孢子中,在某些藻类和高等植物中也存在。

Microsporidia are ubiquitous intracellular parasitic protozoa infecting all types of animals.

微孢子虫是广泛分布於自然界的细胞内原虫类寄生物。

After Nageli found the Aosema bombycis, there are five genus of microsporidia pathogenic from the silkworm having been found in the last two decade. They are Kosema, Pleistophora, Thelohania, Vairimorpha and Endoreticulatus. i!. bombycis is quarantined in egg production of silkworm because it tends to have offspring infection.

从1857年Nageli在家蚕中发现家蚕微粒子后,近二十年来,已相继从家蚕体内分离到微粒子虫属、具褶孢虫属、泰罗汉孢虫属、变形孢虫属、和内网虫属等其它病原性微孢子虫。

At mononucleus microspore stage,cytoplasm were thick and organella,such as mitochondria,endoplasmic reticulum were abundant.At two\|nucleus and three\|nucleus stage,there were a lot of starch grains.

结果表明,85 EA、89 AR、TA 与恢复系杂交F1 代小孢子发育表现出明显的可育特征:在单核期,细胞质浓,细胞器丰富,线粒体、内质网等十分发达,二核及三核期淀粉粒数量多。

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