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Adaptive Morphophysiological Features of Neottia ovata (Orchidaceae) Contributing to Its Natural Colonization on Fly Ash Deposits
- Source :
- Horticulturae, Volume 7, Issue 5, Hortic., Horticulturae, Vol 7, Iss 109, p 109 (2021)
- Publication Year :
- 2021
- Publisher :
- MDPI AG, 2021.
-
Abstract
- In previous decades, some species of the Orchidaceae family have been found growing in man-made habitats. Neottia ovata is one of the most widespread orchids in Europe, however it is quite rare in Russia and is included in several regional Red Data Books. The purpose of this study was to compare the chemical composition and morphophysiological parameters of N. ovata from two forest communities of the Middle Urals, Russia: natural and transformed (fly ash dump of Verkhnetagil’skaya Thermal Power Station) for determining orchid adaptive features. The content of most of the studied metals in the underground parts (rhizome + roots) of N. ovata was considerably higher than in the leaves, which diminished the harmful effect of toxic metals on the aboveground organs. The adaptive changes in the leaf mesostructure of N. ovata such as an increase in epidermis thickness, the number of chloroplasts in the cell, and the internal assimilating surface were found for the first time. The orchids from the fly ash deposits were characterized by a higher content of chlorophyll b and carotenoids than plants from the natural forest community that evidenced the compensatory response on the decrease in chlorophyll a. The ability of N. ovata from the transformed habitat to maintain a relatively favorable water balance and stable assimilation indexes further contribute to its high viability. The study of orchid adaptive responses to unfavorable factors is necessary for their successful naturalization and introduction into a new environment. © 2021 by the authors. Licensee MDPI, Basel, Switzerland. The reported study was partly funded by RFBR and the Government of Sverdlovsk region, project number 20-44-660011 and the Ministry of Science and Higher Education of the Russian Federation as part of state task of the Ural Federal University, FEUZ-2020-0057.
- Subjects :
- leaf mesostructure
0106 biological sciences
LEAF MESOSTRUCTURE
Pollination
metals
Plant Science
Horticulture
FLY ASH
Photosynthesis
WATER EXCHANGE
010603 evolutionary biology
01 natural sciences
SB1-1110
plant introduction
chemistry.chemical_compound
Botany
orchid
photosynthetic pigments
Orchidaceae
adaptive responses
photosynthesis
biology
ORCHID
PHOTOSYNTHESIS
Plant culture
biology.organism_classification
TRANSFORMED ECOSYSTEMS
transformed ecosystems
Rhizome
water exchange
Neottia ovata
fly ash
Habitat
chemistry
ADAPTIVE RESPONSES
PLANT INTRODUCTION
Chlorophyll
Epipactis atrorubens
PHOTOSYNTHETIC PIGMENTS
METALS
010606 plant biology & botany
Subjects
Details
- ISSN :
- 23117524
- Volume :
- 7
- Database :
- OpenAIRE
- Journal :
- Horticulturae
- Accession number :
- edsair.doi.dedup.....491c9b88d6dcab5754e6044cd57a076e