前孢子 的英文怎麼說
中文拼音 [qiánbāozi]
前孢子
英文
forespore-
External fertilization occurs when gametes are expelled into a watery substrate from the parental bodies before fusion ; it is typical of sporebearing plants
當配子在融合之前從親本體中排出到有水介質時發生體外受精,這是孢子植物的特徵。In the present dissertation, summarized and reviewed senior ' s study of lespedeza michx., on the basis of this, studied plants of lespedeza michx. in inner mongolia by means of polynology and cladistics taxology, discussed part of controversial species with menthod of and peroxidase isoenzyme pattern analysis
本文在回顧和總結前人對胡枝子屬lespedezamichx .植物研究的基礎上,對在內蒙古分佈的胡枝子屬植物進行了支序分類學和孢粉學研究;還對部分有爭議的種類做了過氧化物酶同工酶酶譜分析。The methods of classical classification, integrating the study on seed morphology and leave epidemics morphology, along with phytomorphology, phytotomy, phytoembryology, palynology, phytocytotaxonomy, phytochemistry and molecular systcmatics, were used to revise and complete the former taxonomic system
以經典植物分類學方法為基礎,結合種子形態學和葉表皮形態學的實驗研究,參考植物形態學、植物解剖學、植物胚胎學、孢粉學、植物細胞分類學、植物化學和分子系統學等方面的資料,對前人的五味子屬分類系統進行修訂和補充。Vivipary the germination of seeds or spores that are still attached to the parent plant
胎生:種子或孢子未脫離母體前就開始發育生長。Is unreliable. so, in this paper we follow < flora reipublicae popularis sinicae > ( tomus 3 ( 2 ) ) ( ching ' s concept for athyriaceae in 1978 was modified ), spore morphology and molecular of athyriaceae was investigated. at the bases of these studies combining the researching informations of predeceesors, the texonmic position of the genera and dividing about subfamily in athyriaceae were analyzed
所以,本文根據《中國植物志》 3 ( 2 )的系統(秦仁昌, 1978的系統並稍做改動) ,對蹄蓋蕨科的植物進行了孢粉學和分子系統學的研究,在此基礎上,結合前人的研究資料,對蹄蓋蕨科各屬的系統分類以及亞科的劃分進行了探討。In the course of present investigation in interspecific hybrid of tritical crops, cytomixis mas observed at microspore stage, the present investigation deals with detailed analysis of this phenomenon at different conditions
作者在麥類遠緣雜種的減數分裂過程中發現,在減數分裂的前期和小孢子時期均存在核穿壁的現象,並對各種狀態下的穿壁現象進行了詳細的觀察研究。L were studied. during the meiotic process of megasporocyte, the ribosome population diminished greatly in prophase i and restored in metaphase i ; plastids and mitochondria turned unclear dedifferentiation in prophase i and recovered their normal structures redifferentiation in metaphase i. all these proved that cytoplasmic reorganization took place during the megasporogenesis of
發現了小麥大孢子母細胞減數分裂過程中,核糖體密度在前期顯著降低,到中期才完全恢復質體和線粒體也出現了脫分化和再分化。從而證明了小麥的大孢子形成過程中也存在著細胞質改組現象。分享友人