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12 torthaí
Chemical composition and antimycobacterial activity of the essential oil from Anemia tomentosa var. anthriscifolia.
Ní féidir ach le húsáideoirí cláraithe ailt a aistriú
Logáil Isteach / Cláraigh
The essential oil from Anemia tomentosa var. anthriscifolia showed in vitro activity against Mycobacterium tuberculosis (MIC 100 microg/ml) and therefore was characterized by gas chromatography (GC) and by gas chromatography coupled with mass spectrometry (GC-MS). The major constituents of this
Factors Influencing Spore Germination and Early Gametophyte Development in Anemia mexicana and Anemia phyllitidis.
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Logáil Isteach / Cláraigh
Spores of Anemia mexicana Klotzsch and Anemia phyllitidis (L.) Swartz were tested comparatively to investigate the effects of various treatments on spore germination and early gametophyte development in light and darkness. The optimum pH for induction of spore germination is approximately 6. Both
Polar distribution of annexin-like proteins during phytochrome-mediated initiation and growth of rhizoids in the ferns Dryopteris and Anemia.
Ní féidir ach le húsáideoirí cláraithe ailt a aistriú
Logáil Isteach / Cláraigh
Although the calcium requirement of phytochrome-mediated fern spore germination and early rhizoid growth is well established, the calcium-binding proteins that serve as transducers for these responses are not known. Here we report the presence of annexin-like proteins in germinating spores of
Detection and partial sequence of phytochrome genes in the ferns Anemia phyllitidis (L.)Sw (Schizaeaceae) and Dryopteris filix-mas L. (Polypodiaceae) by using polymerase-chain reaction technology.
Ní féidir ach le húsáideoirí cláraithe ailt a aistriú
Logáil Isteach / Cláraigh
Phytochrome controls several developmental steps during formation and differentiation of the fern gametophyte, including spore germination, morphogenesis of the gametophyte or differentiation of the sexual cells. To obtain information about the amino acid sequence and the regulation of phytochrome
PCR-dependent amplification and sequence characterization of partial cDNAs encoding myosin-like proteins in Anemia phyllitidis (L.) Sw. and Arabidopsis thaliana (L.) Heynh.
Ní féidir ach le húsáideoirí cláraithe ailt a aistriú
Logáil Isteach / Cláraigh
Partial cDNAs encoding for myosin-like proteins from Anemia phyllitidis and Arabidopsis thaliana have been isolated using PCR technology. The deduced amino acid sequences show an average similarity up to 62% with known myosin heavy chain genes. From northern blot analysis we were able to estimate
Partial characterization of an antheridiogen of Anemia mexicana: Comparison with the antheridiogen of A. phyllitidis.
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Logáil Isteach / Cláraigh
An antheridiogen of Anemia mexicana Klotzsch has been partially characterized by combined gas chromatography-mass spectrometry and gas chromatography-Fourier transform/infra-red spectrometry. It is a C19-gibberellin(GA)-like compound with one carboxyl group, an exocyclic methylene group and a
New Antheridiogen from the Fern Onoclea sensibilis.
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Logáil Isteach / Cláraigh
An antheridium-inducing hormone (antheridiogen) derived from the fern species Onoclea sensibilis (Polypodiaceae) is chromatographically distinct from the native antheridiogen of Pteridium aquilinum (Polypodiaceae). It also differs from the native antheridiogens of Lygodium japonicum and Anemia
Biological specificity of the antheridogen. from Ceratopteris thalictroides (L.) Brongn.
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Logáil Isteach / Cláraigh
The relationship of the antheridogen from Ceratopteris thalictroides (L.) Brongn. (Antheridogen C) to three other known antheridogens, gibberellic acid, and two natural antheridogens, one from Pteridium aquilinum (Antheridogen A) and one from Anemia phyllitidis (Antheridogen B), is investigated. It
Quantitative analysis of diverse sporomorph-derived sporopollenins.
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Logáil Isteach / Cláraigh
Over the years studies on sporopollenin have reported a wide variety of structures. However, the methods and techniques used to elucidate sporopollenin structures are highly diverse so that much is still unclear with respect to the nature and structural diversity of sporopollenins. In order to
Mosquito repellent activity of essential oils of aromatic plants growing in Argentina.
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Logáil Isteach / Cláraigh
Mosquitoes are important vectors of diseases and nuisance pests. Repellents minimize contact with mosquitoes. Repellents based on essential oils (EO) are being developed as an alternative to DEET (N,N-diethyl-m-methylbenzamide), an effective compound that has disadvantages including toxic reactions,
The origin and evolution of green algal and plant actins.
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Logáil Isteach / Cláraigh
The Viridiplantae are subdivided into two groups: the Chlorophyta, which includes the Chlorophyceae, Trebouxiophyceae, Ulvophyceae, and Prasinophyceae; and the Streptophyta, which includes the Charophyceae and all land plants. Within the Streptophyta, the actin genes of the angiosperms diverge
Fern spore extracts can damage DNA.
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Logáil Isteach / Cláraigh
The carcinogenicity of the vegetative tissues of bracken fern (Pteridium) has long been established. More recently, the carcinogenic effects of the spores of bracken have also been recognized. Both vegetative tissues and spores of bracken can induce adducts in DNA in animal tissues, but the possible
An bunachar luibheanna míochaine is iomláine le tacaíocht ón eolaíocht
- Oibreacha i 55 teanga
- Leigheasanna luibhe le tacaíocht ón eolaíocht
- Aitheantas luibheanna de réir íomhá
- Léarscáil GPS idirghníomhach - clibeáil luibheanna ar an láthair (ag teacht go luath)
- Léigh foilseacháin eolaíochta a bhaineann le do chuardach
- Cuardaigh luibheanna míochaine de réir a n-éifeachtaí
- Eagraigh do chuid spéiseanna agus fanacht suas chun dáta leis an taighde nuachta, trialacha cliniciúla agus paitinní
Clóscríobh symptom nó galar agus léigh faoi luibheanna a d’fhéadfadh cabhrú, luibh a chlóscríobh agus galair agus comharthaí a úsáidtear ina choinne a fheiceáil.
* Tá an fhaisnéis uile bunaithe ar thaighde eolaíoch foilsithe
