小根、(解剖)神経根
- 関
- radicular
WordNet
- (anatomy) a small structure resembling a rootlet (such as a fibril of a nerve)
PrepTutorEJDIC
- 幼根,胚根
Wikipedia preview
出典(authority):フリー百科事典『ウィキペディア(Wikipedia)』「2016/04/17 02:38:32」(JST)
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seed of Scouler's willow (
Salix scouleriana)
In botany, the radicle is the first part of a seedling (a growing plant embryo) to emerge from the seed during the process of germination. The radicle is the embryonic root of the plant, and grows downward in the soil (the shoot emerges from the plumule). Above the radicle is the embryonic stem or hypocotyl, supporting the cotyledon(s).
It is the embryonic root inside the seed. It is the first thing to emerge from a seed and down into the ground to allow the seed to suck up water and send out its leaves so that it can start photosynthesizing.
The radicle emerges from a seed through the micropyle. Radicles in seedlings are classified into two main types. Those pointing away from the seed coat scar or hilum are classified as antitropous, and those pointing towards the hilum are syntropous.
If the radicle begins to decay, the seedling undergoes preemergence damping-off. This disease appears on the radicle as darkened spots. Eventually, it causes death of the seedling.
The plumule is the baby shoot. It grows after the radicle.
In 1880 Charles Darwin published a book about plants he had studied, The Power of Movement in Plants, where he mentions the radicle.
It is hardly an exaggeration to say that the tip of the radicle thus endowed [..] acts like the brain of one of the lower animals; the brain being situated within the anterior end of the body, receiving impressions from the sense-organs, and directing the several movements.
See also
- Plant perception (physiology)
References
External links
UpToDate Contents
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English Journal
- Organ-Specific Proteomic Analysis of NaCl-Stressed Germinating Soybeans.
- Yin Y1, Yang R, Gu Z.
- Journal of agricultural and food chemistry.J Agric Food Chem.2014 Jul 10. [Epub ahead of print]
- A comparative proteomic approach was employed to explore proteome expression patterns in germinating soybeans under NaCl stress and NaCl-aminoguanidine treatment. The proteins were extracted from 4-day-old germinating soybean cotyledons and noncotyledons (hypocotyl and radicle) and were separated us
- PMID 24960070
- Involvement of reactive oxygen species in endosperm cap weakening and embryo elongation growth during lettuce seed germination.
- Zhang Y1, Chen B1, Xu Z1, Shi Z1, Chen S1, Huang X1, Chen J1, Wang X2.
- Journal of experimental botany.J Exp Bot.2014 Jul;65(12):3189-200. doi: 10.1093/jxb/eru167. Epub 2014 Apr 17.
- Endosperm cap (CAP) weakening and embryo elongation growth are prerequisites for the completion of lettuce seed germination. Although it has been proposed that the cell wall loosening underlying these processes results from an enzymatic mechanism, it is still unclear which enzymes are involved. Here
- PMID 24744430
- Increasing temperatures can improve seedling establishment in arid-adapted savanna trees.
- Stevens N1, Seal CE, Archibald S, Bond W.
- Oecologia.Oecologia.2014 Jul;175(3):1029-40. doi: 10.1007/s00442-014-2958-y. Epub 2014 May 8.
- Plant species are shifting their ranges in response to global climate change, thus intensifying the need to predict such changes accurately. As the environmental requirements controlling plant distribution act differently at each developmental stage, there is a need to acquire a demographic-specific
- PMID 24805202
Japanese Journal
- 松尾 光弘,酒井 和也,國武 久登,西脇 亜也
- 宮崎大学農学部研究報告 60, 1-6, 2014-03-22
- … Their lengths in hypocotyl and radicle of lettuce seedlings were shorter than those on control from June to December by leachate from the artificially dried young and adult and naturally dried adult leaves.###The soil cultivating barbados nut was investigated for assessment of allelopathic activities. …
- NAID 120005458556
- ミズナ(Brassica rapa L.)および九条ネギ(Allium fistulosum L.)幼根細胞の高温ストレスに対する2,3,5-tripheniltetrazolium chloride (TTC)の染色の減少
- MIMURA Yutaka,KAWAKAMI Tomoko,SUETOME Noboru
- 京都府農林水産技術センター農林センター研究報告. 農業部門 (36), 1-7, 2014-03
- NAID 40020071033
- 簡易ガス置換法により評価した帰化アサガオ類の発芽に及ぼす 気相酸素濃度の影響
- 朝倉 草平,松村 篤,今堀 義洋 [他],大門 弘幸
- 日本作物学会紀事 83(2), 160-164, 2014
- 水田転換畑で問題となっている帰化アサガオ類の発芽に及ぼす気相酸素濃度の影響を明らかにするために,アルゴンガスで気相を置換する簡易な発芽試験法によって発芽試験を試みた.本法では,酸素濃度0%を想定した処理区の酸素濃度は,実測値で0.62%であり,完全嫌気条件は設定できなかった.想定した酸素濃度 (0,1,5,10,20%) 条件下では,マメアサガオ (Ipomoea lacunosa L.) は,い …
- NAID 130004829729
Related Links
- radicleとは。意味や和訳。[名]1 植物幼根;細根.2 化学=radical[名]3.3 解剖(神経・血管の末端の)小根. - goo辞書は国語、英和、和英、中国語、百科事典等からまとめて探せる辞書検索サービスです。
- Share This About us Radicle: Vine and Wine are a group of viticulturalists, winemakers and scientists dedicated to ecological vinification. Dr Jim Hardie Dr Andrea Watt Dr Alastair Reed Recent Posts New World Vineyard Plantings
Related Pictures
★リンクテーブル★
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- 関
- radicle、root、tooth root
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- 英
- radicle、radicular
- 関
- 歯根、根性、神経根