Developmental Plasticity of Glandular Trichomes into Somatic Embryogenesis in Tilia amurensis

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Developmental plasticity of glandular trichomes into somatic embryogenesis in Tilia amurensis.

BACKGROUND AND AIMS In Tilia amurensis, two types of trichomes (hairy and glandular) develop from epidermal surfaces of cotyledons and hypocotyls of zygotic embryos soon after germination. Here, it is demonstrated that glandular trichome initials develop directly into somatic embryos when treated in vitro with 2,4-dichlorophenoxyacetic acid (2,4-D). METHODS Zygotic embryos of Tilia amurensis ...

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Cryofixation and conventional chemical fixation methods were employed to examine the ultrastructure of developing peltate glandular trichomes of peppermint (Mentha x piperita). Our results are discussed in relation to monoterpene production and the mechanism of essential oil secretion. Peltate glands arise as epidermal protuberances (initials) that divide asymmetrically to produce a vacuolate b...

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As part of our ongoing search for bioactive constituents of natural Korean medicinal resources, we found in a preliminary study that the methanol (MeOH) extract from the trunks of Tilia amurensis RUPR. showed an inhibitory effect on nitric oxide (NO) production in an activated murine microglial cell line. A bioassay-guided fractionation and chemical investigation of the MeOH extract resulted in...

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ژورنال

عنوان ژورنال: Annals of Botany

سال: 2007

ISSN: 1095-8290,0305-7364

DOI: 10.1093/aob/mcm094