Abstract

It is revealed that dipeptides glycylglycine (GlyGly) and glycylaspartic acid (GlyAsp), as well as the amino acid glycine (Gly), appreciably stimulated the growth and development of tobacco (Nicotiana tabacum L.) regenerants and seedlings if they were present in a medium at 10^–7 М. All three compounds GlyGly, GlyAsp, and Gly influenced the cell differentiation and morphogenic processes in the calli. The compounds modulated expression of the KNOX and GRF family genes. The profiles of induction or repression of gene expression by one and the same peptide were found to differ in tobacco regenerants and seedlings. It is concluded that GlyGly, GlyAsp, and Gly may be considered as regulators of plant growth and development, the mode of action of which is signaling and mainly epigenetic.

中文翻译：

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二肽和甘氨酸调节烟草烟草幼苗和再生剂的发育。

摘要

结果表明，如果存在于烟草中，则二肽甘氨酰甘氨酸（GlyGly）和甘氨酰天冬氨酸（GlyAsp）以及氨基酸甘氨酸（Gly）可以显着刺激烟草（Nicotiana tabacum L.）在10介质^-7 М. 这三种化合物GlyGly，GlyAsp和Gly影响了愈伤组织中的细胞分化和形态发生过程。这些化合物调节KNOX和GRF的表达家庭基因。发现一种相同的肽对基因表达的诱导或抑制概况在烟草再生剂和幼苗中有所不同。结论是，GlyGly，GlyAsp和Gly可以被认为是植物生长和发育的调节剂，其作用方式是信号传导的，并且主要是表观遗传的。