- 更多网络例句与假根相关的网络例句 [注:此内容来源于网络,仅供参考]
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A division of nonflowering plants characterized by rhizoids rather than true roots and having little or no organized vascular tissue and showing alternation of generations between gamete-bearing forms and spore-bearing forms; comprises true mosses and liverworts and hornworts.
无花植物的一个亚部,以假根而非真根为特点,有小的或没有维管组织,有结合体和孢子体的世代交替;由苔藓类组成。
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In previous management experience, it was found that a new desert governance is formed through microbial mucus conglutinate sand, or by algae, lichens and the moss Jiagen tied up and the formation of biological tie skin, a protective network to start, it can operate effectively constraining the flow, and thus play a dune-fixing role.
结合以前的治理经验,人们发现了一种新的沙漠治理方法,就是通过微生物形成的黏液粘连沙粒,或者被藻类、地衣和苔藓的假根捆绑起来,形成生物结皮,形成接近细沙的防护网,它能有效束缚沙粒流动,从而起到固沙作用。
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Ciliata consists of two elements, the robust and short filamentous chloronema which is composed of 4~6 oblate cells and the thin and long caulonema like osier on which there are many clavae of 2~5 cells.
丝状绿丝体一般由4~6个短粗柱状细胞组成;而轴丝体则是由多数细长柱形细胞构成,其上间隔分布有2~5个细胞组成的棒状体,初生假根有或者无。
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The effects of different concentrations of arsenic on spore germination and rhizoid and prothallium growth of Pteris vittata under aseptic condition were studied.
研究无菌条件下不同浓度砷对蜈蚣草的孢子萌发、假根和原叶体生长发育的影响。
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The fern spore, the original cell of the gametophyte, carries out asymmetrical mitosis to produce a large cell and a small cell. The small cell geminates to a rhizoid by tip growth, and the large cell further divides and develops to become a prothallus.
蕨类植物孢子作为配子体的原始细胞,通过不对称的有丝分裂产生一大一小两个细胞,小细胞萌发出极性生长的假根,大细胞继续分裂发育为原叶体。
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Rhizoid A unicellular rootlike structure found in certain algae and in the gametophyte generation of the bryophytes and some ferns.
假根:在一些藻类、苔藓植物和裸子植物配子体中存在的由单个细胞形成的类似根的结构。
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The enzymes break down the food to simple diffusible compounds which are absorbed into the rhizoids by diffusion and active transport.
假根必泌酵素将食物分解为简单的可扩散化合物,然后透过扩散及主动运输将食物吸进假根。
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Hyphae in certain species may become specialized to form rhizoids, which serve as rootlike anchors, or they may become thefeeding structures known as haustoria.
某些种类的菌丝可能特化形成假根,具有根样的固定作用,或者他们成为饲喂结构称吸器。
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"Superficially resembling higher plants, stoneworts have rootlike and stemlike structures, as well as whorls of branches at regular intervals."
轮藻的外观似高等植物︰具根状假根和按一定间隔出现的轮生分枝,直立的圆柱形中轴外围以由小细胞组成的鞘
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Since there are many branched rhizoids, thus the surface area can be greatly increased for both digestion and absorption of nutrients.
因为有许多分生假根,消化和吸收营养的表面积可大大地增加。
- 更多网络解释与假根相关的网络解释 [注:此内容来源于网络,仅供参考]
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Acetabularia:伞藻
伞藻的介绍:伞藻(Acetabularia)是海生绿藻,高5cm~7cm,基部有假根,茎顶有伞状"生殖器官". 表面看来,伞藻像根、茎、叶俱全的高等植物,其实它只是一个细胞(图14-3),它的细胞核通常位于假根中. 伞藻的再生能力很强,切去伞可再生一个伞,
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antheridium:精子器
苔藓植物(配子体)是一群小型的多细胞的绿色植物,呈叶状体或有假根和类似茎、叶的分化的枝状体,内部构造简单.雌、雄生殖器官由多细胞组成,分别为颈卵器(archegonium)和精子器(antheridium)
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apical cell:顶细胞
有主枝、侧枝、短枝之分. 体表常含有钙质,以单列细胞分枝的假根固着于水底淤泥中. 主枝和侧枝分化成节和节间,节的四周轮生有短枝. 短枝也分化成节和节间,短枝又被叫做"叶". 无论是主枝或是短枝,顶端均有一个顶细胞(apical cell),可继续生长.
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apophysis:囊托
根霉属真菌主要外观特徵为具有假根(rhizoid)及匍匐菌丝(stolon). 孢子囊柄(sporangiophore)以单支或数支成束的方式自匍匐菌丝长出,孢子囊柄基部往往与假根基部相对. 孢子囊有囊轴(columella),囊领(collarette),囊托(apophysis)等构造、成熟时呈现灰色至褐色.
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rhizoid:假根
每个细胞内含有一个或二个核.苔藓植物是一类小型的多细胞绿色植物,多生于阴湿的环境中.植物体有假根和类似茎,叶的分化,简单的种类呈扁平的叶状体.植物体的内部构造简单,假根(rhizoid)是由单细胞或单列细胞组成.无中柱,
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Rhizopus:根霉
(二)根霉(Rhizopus)根霉与毛霉同属毛霉目,很多特征相似,主要区别在于,根霉有假根和匍匐菌丝. 匍匐菌丝呈弧形,在培养基表面水平生长. 匍匐菌丝着生孢子囊梗的部位,接触培养基外,菌丝伸入培养基内呈分枝状生长,犹如树根,故称假根,
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Reboulia hemisphaerica:石地钱
[摘要]石地钱(Reboulia hemisphaerica)属苔纲地钱目石地钱科石地钱属植物.多生长在林下石面较干燥的土层上. 其叶状体(配子体)扁平带状,二叉分枝,腹面沿中肋有一条假根槽,生有许多假根,槽的两侧生有紫红色鳞片. 雌生殖托半球形,绿色分瓣,有短柄,
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rhizine:假根体
rhipidium 扇状聚伞花序 | rhizine 假根体 | rhizobium 根瘤菌
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rhizine:假根
苯胺黑(黑色素)nigrosin | 假根rhizine | 转导tramsduction
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tomentose:具多数假根的
08.003 苔类[植物] liverwort | 08.004 具多数假根的 tomentose | 08.005 蔽前式的 incubous