Endangered orchid plant Epipactis atrorubens on serpentine and granite outcrops of Middle Urals, Russia: A comparative morphophysiological study

Filimonova, E. I.; Лукина, Н. В.; Глазырина, М. А.; Borisova, Galina; Maleva, Maria; Чукина, Н. В.

doi:10.1063/1.5087348

Cited by 7 publications

(18 citation statements)

References 11 publications

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“…Morphological analysis of two E. atrorubens populations showed no significant differences for shoot length and number of flowers per inflorescence between both sites (Table 4). This was found previously for leaf area (Filimonova et al 2019). Leaves of plants growing on serpentine outcrops, as shown by this study, were significantly (about 2 times) thicker compared to plants growing on the granite substrate.…”

Section: Biometric Assessment Of E Atrorubens and Mycorrhizal Associsupporting

confidence: 91%

“…An increase in leaf thickness may contribute to more efficient absorption and use of light energy in high insolation conditions. In addition, it could also compensate for the lack of photosynthetic pigments found previously (Filimonova et al 2019).…”

Section: Biometric Assessment Of E Atrorubens and Mycorrhizal Associmentioning

confidence: 93%

“…According to Delforge (2006) and Djordjević et al (2016), E. atrorubens can also grow on serpentine areas. One such population was found recently in the Middle Urals on serpentine outcrops of asbestos deposits (Filimonova et al 2019).…”

Section: Introductionmentioning

confidence: 99%

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A comparative study of Epipactis atrorubens in two different forest communities of the Middle Urals, Russia

et al. 2019

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The objective of this study was to compare ecophysiological and morphological parameters of a regionally endangered orchid species, Epipactis atrorubens (Hoffm. ex Bernh.) Bess., growing in two forest communities (on serpentine and granite outcrops) of the Middle Urals, Russia. Biodiversity, dominance, and phytocoenosis studies showed the colonization of a wide range of plant species on both sites. The physicochemical properties of the soil, chemical composition and morphological features of E. atrorubens, growing under technogenic conditions (asbestos deposits), on serpentine outcrops and in the natural environment of the granite massif were studied for the first time. The serpentine substrate differed from the granite one by its greater stoniness, circumneutral pH and lower contents of available nitrogen and phosphorus. Extremely high concentrations of magnesium were found in the serpentine soil, some 79 times higher than in the granite substrate. High concentrations of nickel (94 times), chromium (59 times), cobalt (17 times), and iron (4 times) were found in the serpentine substrate, higher than in the granite substrate. The differences between the sites for available metal contents and for root and shoot metal contents were significantly less. Concentrations of most of the metals in the roots were higher than in the shoots. Despite higher metal concentrations and lower nitrogen and phosphorus levels in serpentine soils, E. atrorubens had a larger population and greater viability compared to those growing on granite. Plants on serpentine outcrops were characterized by the formation of a larger number of fruits, greater root lengths and thicker leaf blades, compared to plants on granites. The well-developed orchid mycorrhizae contributed to the survival of this species under unfavorable serpentine conditions. Hence, serpentine outcrops formed due to the mining of asbestos could be a suitable substrate for the light-demanding E. atrorubens due to its capacity to adapt to dry, rocky, nutrient-depleted soils and limited competition from other plants.

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Section: Biometric Assessment Of E Atrorubens and Mycorrhizal Associsupporting

confidence: 91%

Section: Biometric Assessment Of E Atrorubens and Mycorrhizal Associmentioning

confidence: 93%

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A comparative study of Epipactis atrorubens in two different forest communities of the Middle Urals, Russia

et al. 2019

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“…According to the De Agostini, [14] rare plants, such as orchids, may occur in modifi ed habitats and on soils containing heavy metals, yet their ecological and physiological responses to heavy metals are still poorly understood. Some orchids, such as Epipactis atrorubens, have the ability to adapt to nutrient-poor and dry substrates on different bedrock types, as stated by Filimonova et al (2019) [15]. It is assumed that orchid mycorrhizae contribute to increased tolerance to unfavorable soil conditions, such as high concentrations of toxic metals [16].…”

Section: Introductionmentioning

confidence: 98%

Orchid species Anacamptis morio as a potential bioremediator of As, Cd and Pb

Mikavica¹,

Ranđelović²,

Djordjević³

et al. 2020

J Appl Eng Science

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In this study concentration of toxic elements As, Cd, and Pb were determined in different soil types and belonging orchid species Anacamptis morio vital parts, in order to examine accumulation patterns and provide new insights about the potential use of this orchid in bioremediation technology. Soils developed on limestone, serpentine, and the chert were subjected to the BCR sequential extraction. Samples of orchid roots and tubers, as underground parts, and stems, leaves, and infl orescences, as above-ground organs, were also analyzed for the content of As, Cd and Pb. During this research, it was observed that metal content in soil is directly proportional to its content in the plant, more specifi cally in roots, which suggests that A. morio can potentially be used in the phytostabilization of contaminated sites. Values for BCF factors showed Cd immobilization in roots regardless of the soil type. A certain level of arsenic was transferred from roots to leaves indicating the potential for accumulation of this element into aboveground organs. Assessment of the phytoremediation potential of this orchid or another plant species from diverse environments is important as it provides information about the possibility of their future application in environmental remediation programs.

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“…The monitoring of vegetation restoration on disturbed lands in the Middle Urals, Russia, has shown that dumps from mining and processing industries are often colonized by some rare orchid species at the initial stages of the forest phytocoenoses formation [22][23][24]. Low competition in man-made habitats contributes to the conservation of the gene pool of Orchidaceae species.…”

Section: Introductionmentioning

confidence: 99%

Adaptive Morphophysiological Features of Neottia ovata (Orchidaceae) Contributing to Its Natural Colonization on Fly Ash Deposits

et al. 2021

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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.

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Endangered orchid plant Epipactis atrorubens on serpentine and granite outcrops of Middle Urals, Russia: A comparative morphophysiological study

Cited by 7 publications

References 11 publications

A comparative study of Epipactis atrorubens in two different forest communities of the Middle Urals, Russia

A comparative study of Epipactis atrorubens in two different forest communities of the Middle Urals, Russia

Orchid species Anacamptis morio as a potential bioremediator of As, Cd and Pb

Adaptive Morphophysiological Features of Neottia ovata (Orchidaceae) Contributing to Its Natural Colonization on Fly Ash Deposits

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