Ontogenesis, estimation of coenopopulation state and component composition in Nepeta densiflora Kar. et Kir. (Lamiaceae) individuals of East Kazakhstan

The paper presents the results of the complex study of main biological and chemical characteristics in the endemic species Nepeta densiflora which occupies the boundary position in the distribution of Spicatae (Benth.) Pojark.section of Nepeta genus. It has been established that the ontogenesis is c...

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Bibliographic Details
Published in:International journal of environmental studies 2019-07, Vol.76 (4), p.634-647
Main Authors: Astashenkov, Alexey Yu, Cheryomushkina, Vera A., Myrzagaliyeva, Anar B., Medeubayeva, Balzhan Z.
Format: Article
Language:English
Subjects:
Chemical composition
coenopopulations
component composition
Ecological monitoring
Endemic species
Environmental science
Environmental studies
Essential oils
Germacrene
Morphogenesis
morphology
Nepeta
Nepeta densiflora
Ocimene
ontogenesis
Organic chemistry
Population studies
Regeneration
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Summary:The paper presents the results of the complex study of main biological and chemical characteristics in the endemic species Nepeta densiflora which occupies the boundary position in the distribution of Spicatae (Benth.) Pojark.section of Nepeta genus. It has been established that the ontogenesis is complete and the individuals successively pass the morphogenesis stages: primary shoot → primary bush → clump → branching particle . Assessment of coenopopulation states has identified the studied population as normal and stable. Coenopopulation stability is determined by its seed regeneration and complex ontogenesis. Species existence under the studied ecological and coenotic conditions can be successful, provided that there is no phytocoenotic environment composed of turfed lady's mantle community. In N. densiflora, the main components of the essential oil were found to be cis-trans-Nepetalactone (up to 70%), cis-β-Ocimene (4.8%), Germacrene D (3.1%) and β-Cyclocitral (2.4%).
ISSN:0020-7233
1029-0400
DOI:10.1080/00207233.2018.1509496