- 更多网络例句与植物起源的相关的网络例句 [注:此内容来源于网络,仅供参考]
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This Review discusses current advances in our understanding of the origin, biogenesis, and mode of action of plant miRNAs and draws comparisons with their metazoan counterparts.
本文对植物miRNAs的生物起源和作用模式进行了讨论,并对与它们配对的后生动物进行了对比。
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They can be classificated to two kinds. One kind is build by photomultiplier; another kind is build by MCP. The mechanism of delayed luminescence is discussed with subradiation. A photon count system is built. To proof the biophoton is a kind of ultra weak photon stream originate from exothermic reaction, and primarily discuss the relationship between the delayed luminescence and proteins activity, we chose microphyllous banyan leave , ficus elastica leave, gingkgo leave, Chinese fan palm leave, and cinnamomum camphora leave as biological samples. The ultra weak photon emission from normal biosamples, and proteins inactivated biosample were measured separately with photon count system. The results showed that the delayed luminescence of biosamples have
在研究过程中,作者从辐射陷获的角度讨论了延迟发光的产生机制,对生物光子的生物化学起源与相干场起源的统一性进行了探索;自行搭建了单光子探测系统;测量了小叶榕树、印度橡树,银杏树,蒲葵树香和樟树等多种植物叶片样品的延迟发光,获得了大量实验数据;为了证明生物光子是一种起源于放热化学反应能量释放的微弱光子流,并初步探讨生物蛋白活性与延迟发光衰减之间的关系,测量了正常生物样品、生物蛋白灭活样品的延迟发光,同时测量了多种不含蛋白质的无机化学体系作为比对,实验结果和实验数据的回归分析表明:弱光子发射来源于放热的化学反应,延迟发光的强度与衰减时间与生物蛋白活性密切相关。
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The generic distributions in both modern and fossil times were outlined, and their distribution center, place and time of origin and the way of dispersal were discussed. An attempt was made to discuss early differentiation, geographical radiation and morphological evolution of the family on the background of paleogeography and paleoclimatology, tracing back as far as the Late Cretaceous and Early Tertiary.
作者试图回到遥远的晚白垩纪和旱第三纪,从描绘桦木科植物起源和早期分化的古地理和古气候背景入手,分析了在这种背景下桦木科植物所发生的空间辐射以及植物体本身所产生的形态进化,以求得对桦木科植物起源、散布和分化作出比较合理的解释。
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The results indicated that the seeding flora ingredients were complex, all the 15 seed plant distribution area types ocarrina in China were found, the characteritic of the distribution area types is anciently original, rich for primitive group; geography ingredients are complex and diverse, dominated by temperate zone species, the next is tropics species, indicating the characteristics of the north and south flora; with high endemic degree.
对甘肃白水江国家级自然保护区种子植物属的分布区类型进行了研究,采用样线调查和样地调查相结合的调查方法,结果表明,保护区种子植物区系成分复杂,中国分布的15个种子植物分布区类型,在栖息地均有分布,区系成分表现为起源古老,原始类群丰富;地理成分复杂多样,以温带成分为主,热带成分次之,兼有南北植物区系的特点;特有化程度高。
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Proteinase preparations of microbial or plant origin are used for dough softening .
微生物或植物起源的蛋白酶制剂一般用于面团的软化。
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In the respect of plant geography, combining with the situation that plaeogeography, fossils of cycads, present the diversity of cycads of China and the evolutionary process of cycads, think that southwestern region of China are distribution center of plants of Cycadaceae and the originated center.
在地理分布方面,结合古地理、古苏铁植物化石的情况及现代中国苏铁科植物的多样性及苏铁科植物的演化过程等方面分析,认为中国的西南地区为苏铁科植物的分布中心,也是起源中心。
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Studies on the origin of the family Gramineae.
关于禾本科植物起源问题的探讨。
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Studies on the origin of the family Gramineae.
标题 关于禾本科植物起源问题的探讨。
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Based on 18 boxes of fossil specimens collected by the author from Xiaheyan, Zhongwei, Ningxia Hui Minority Autonomous Region and some other geological and palaeontological data from both Xiaheyan and the adjacent sections in the east sector of North Qilian Mountains, the present paper studies the botanical characteristics of Middel-Late Namurian Flora in Locality Xiaheyan and represents the primary reconstruction of the Middle-Late Namurian Flora in the Northeast Qilian Mountains, also tries to make available accounts for the correlation between the different Flora provinces, and discusses the origin time of Cathaysian Flora based on the succession and the transmissibility of the plants through the whole Namurian stage.
结合自从大学三年级一直到硕士研究生阶段笔者踏勘过的北祁连山东段地区十几条石炭系剖面,以及对相关文献的整理,笔者初步分析了北祁连山东段纳缪尔中晚期植物群的垂直演化分布情况,并完成了该期全球不同植物地理区系植物群植物学性质方面的简要比较。北祁连山东段地区纳缪尔早期与中晚期植物群的遗传性与继承性,加之华夏植物群的特征分子及一些东方型地方性分子在纳缪尔早期的出现,笔者认为这些无疑为晚古生代四大植物群之一的华夏植物群的起源完成于纳缪尔初期提供了有利证据。
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One hundred and thirty four families, 578 genera and 1197 species are recorded in this area. According to the information of historical geology and natural conditions, the composition of seed plant flora and the areal-types of genera were analyzed. The results showed that its origin was rather ancient and its geographical compositions were complicated. There were many species of rare and endangered plants, e.g. Taxus chinensis var. mairei, Bretschneidera sinensis, Emmenopterys henryi, Fokienia hodginsii, Torreya grandis, Phoebe bournei, Ormosia henryi, and so on. Most of these plants had high value in economics and scientific research. According to statistics and analysis of genera in the present flora, 578 genera were divided into 14 areal-types. The ratio of tropical and temperate genera was respectively 48.6% and 49.2%, so its flora was characterized by transitional floristic elements, and in wide connection with the world.
该地区植物种类丰富,共有野生种子植物134科、578属、1197种;根据地史资料和自然条件,通过对种子植物种类的组成和分布区类型的分析,认为该区系起源古老,区系成分复杂;珍稀特有植物多,如南方红豆杉、钟萼木、香果树、福建柏、榧树、闽楠、花榈木等大量古老树种,并且绝大多数具有重要的经济价值和科研价值;区内578属可分为14个类型,热带和温带分布的属分别占48.6%和49.2%,具较明显的南北过渡的现象,与世界各地有广泛的联系。
- 更多网络解释与植物起源的相关的网络解释 [注:此内容来源于网络,仅供参考]
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cultigen:栽培植物;栽培起源的植物
刀形 cultellate | 栽培植物;栽培起源的植物 cultigen | 栽培品种 cultivar, cv
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plant taxonomy:植物分类学
植物分类学(Plant taxonomy)是植物学中主要研究整个植物界不同类群的起源、亲缘关系以及进化发展规律的一门基础学科,也就是把极其繁杂的各种各样植物进行鉴定、分群归类、命名井按系统排列起来,以便于认识,便于研究和利用的科学.
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Taxus spp:红豆杉属
红豆杉属(Taxus spp)植物起源古老,属第三纪孓遗植物,在地球上已生存繁衍250万年,且地理分布区域广泛[1]. 红豆杉属植物有9种,主要分布在北半球的寒温带、温带和亚热带地区,全球目前发现的主要种类有:短叶红豆杉、加拿大红豆杉、球果红豆杉、杂种紫杉、欧洲红豆杉、佛罗里达红
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Illicium:八角属
如八角属(Illicium)约有60种. 其中只有一种叫八角茴香的没有毒,它的成熟果实为调味香料. 另外的种尤其是莽草这个种,果实有剧毒,过去有误食致命者. 可见植物的"种"是客观存在的. 植物分类学的研究还要探讨植物的起源和演化,
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Magnoliaceae:一,木兰科
作为被子植物中最原始的类群之一,木兰科(Magnoliaceae)是研究被子植物系统发育和起源的宝贵材料,我国栽培木兰科植物已有2500多年的历史,资源丰富,是名符其实的"木兰王国",木兰科植物花大色艳,具很高的观赏价值,目前在园林绿化上深受欢迎.
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phytogenic:植物成因的
phytogenic structure 植生构造 | phytogenic 植物成因的 | phytogenous 植物起源的
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phytogenous:植物起源的
phytogenic 植物成因的 | phytogenous 植物起源的 | phytogeographical zone 植物地理带
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phytogeographical zone:植物地理带
phytogenous 植物起源的 | phytogeographical zone 植物地理带 | phytogeography 植物地理学
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Schizophyta:裂殖植物门
蓝藻和细菌最接近,它们都是以细胞直接分裂的方法进行繁殖,因而人们主张蓝藻和细菌有共同的起源,并把两者合称为裂殖植物门(Schizophyta),分两个纲,即裂殖藻纲(Schizo-phyceae)和裂殖菌纲(Schizomycetes).
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lectin:植物凝集素
一般而言,植物凝集素是由二一、植物凝集素简介 植物凝集素(Lectin)一词,起源于拉丁语Legere. 它是非免疫起源的,能与糖类结合的一类蛋白质,具有使细胞凝集和使多糖沉淀的特性(',,每分子的植物凝集素至少有二个能与糖结合的位点.