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Vladimir Nazarov

Vladimir Nazarov
V.I. Vernadsky Crimean Federal University, Russia · Botany

PhD

About

34
Publications
6,848
Reads
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260
Citations
Citations since 2016
5 Research Items
72 Citations
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2016201720182019202020212022051015
2016201720182019202020212022051015
Additional affiliations
April 2015 - May 2015
V.I. Vernadsky Crimean Federal University
Position
  • Researcher
January 2012 - March 2015
Russian Academy of Sciences
Position
  • scientist
Education
November 1995 - February 1997
Komarov Botanical Institute Botany (BIN RAS), ·Russia, · St. Petersburg
Field of study
  • Reproductive strategy of european orchids
November 1985 - October 1988
Komarov Botanical Institute Botany (BIN RAS), ·Russia, · St. Petersburg
Field of study
  • Reproductive biology of Crimean orchids
September 1978 - May 1983

Publications

Publications (34)
Article
Full-text available
Keywords : 1 2 1 04.12.2019; Revised: 15.12.2019; Accepted and Published online: 20.12.2019 The analysis of data on fruitаge, heterospermy, viability of seeds and seed progeny in Orchis purpurea at the northeastern limit of distribution (Krasnodar region and Crimea) was carried out. The percentage of fruit formation in the Krasnodar region was low...
Article
Full-text available
Проанализирована жизнеспособность семян и семенного потомства Orchis purpurea ssp. purpurea с использованием методики проращивания семян в культуре in vitro. Для посева использовали незрелые семена из двух местонахождений полуострова Крым. Проведено цитоэмбриологическое исследование семян на момент посева, непроросших семян через год после посева и...
Conference Paper
Full-text available
The results of longstanding research on pollination the entomological collection of Zygaenide “Museum Witt” in Munich are shown. About 120 000 specimens of Zygaenide moths have been studied. More than 700 specimens have been educed out of 17 taxons of Zygaenide. They carried pollinarium and hemipollinarium of European species of orchids from Anacam...
Article
Full-text available
Potential (PSP) and real (RSP) seed productivity of a flower, an inflorescence and plant exemplar at three species of Cephalanthera in the Crimea is established. The ovule number in an ovary varied in broad limits even at one inflorescence. The coefficient of variation fluctuated from 30 to 52%. PSP of a flower and a plant speciment increased among...
Article
Full-text available
Ontogenetic phases in the pseudo-cleistogamous orchid species Cynorkis seychellarum were studied in vitro in plants growing alone and in specimens growing together with other orchid species. The analysis of morphological changes of the orchid protocorms and seedlings shows the multidirectional character of the interaction between C. seychellarum an...
Article
Full-text available
We have studied the flower morphology and reproductive biology of tropical orchids Microterangis hariotiana (Kraenzl.) Sengha. It is assumed that flowers are pollinated by some unknown mosquitoes. The mechanism of active trans-fer of pollinia on the body of the assumed pollinator and the mechanism of active transfer of pollinia into stigma are de-s...
Article
Full-text available
The pollination biology of the Anacamptis pyramidalis (L.) RICH. was studied at five localities on North Bull Island in Ireland. During numerous observation hours different insect visitors on the Pyramidal orchid and other pink-purple flowered plants were captured. But only three species of Lepidoptera - Zygaena filipendulae (LINNAEUS, 1758), Helio...
Article
Full-text available
Получены данные о развитии пыльника и этапах микроспорогенеза на примере C. damasonium. Показана связь между стадиями развития пыльника, его размером и величиной бутона. Определена критическая стадия для введения пыльника C. damasonium в культуру in vitro.
Article
Full-text available
Electronic system of data unification on the pollination dynamics in orchids (ESUDO) has been developed to improve the information management. A principle of separate registration of changes produced by insects in two halves of the anther and stigma is the basis of the methods of data registration. In ESUDO a total system of data verification has b...
Conference Paper
Full-text available
Computer media created at the end of the twentieth century, such as IPNI, list of synonyms (www.orchid.unibas.ch), POLORCH, MSIO, (www.r.b.o.eu), etc. are great useful information. For example, the electronic base POLORCH & CHECKLIST of CLV, which allowed us to identify the taxon from important characteristics of the androcée of its flower (the mo...
Conference Paper
Full-text available
Orchid pollinaria can be detected easily on insect pollen vectors in the field as well as in collections. The results from the analysis of pollinaria charge on various families of Lepidoptera (Zygaenidae, Noctuidae) are presented. Out of the materials of the Zoologische Staatssammlung München and the Museum Witt, ~63 000 specimens have been examine...
Article
Full-text available
Abstract: Zygaena lonicerae (SCHEVEN, 1777) and 2. minos ([DENIS & SCHIFFERMÜLLER], 1775) are recorded as pollinators of orchids of the genus Gymnadenia, the pollinaria of which were found at the probosces of the zygaenids. The records are importent for the pollinating biology of orchids in Thuringia. Key words: Orchidaceae, Gymnadenia, Insecta, Le...
Article
Full-text available
Arabidopsis thaliana is the most widely studied model plant. Functional genomics is intensively underway in many laboratories worldwide. Beyond the basic annotation of the primary sequence data, the annotated genetic elements of Arabidopsis must be linked to diverse biological data and higher order information such as metabolic or regulatory pathwa...
Conference Paper
Full-text available
The pollen of orchids forms aggregates known as pollinaria that are easily visible on insects that act as pollinators. The pollinaria of Anacamptis pyramidalis (Orchidaceae) are morphologically unique and have good differences from those of other European orchids. This allows one to check collections of insects and recognize those species that poll...
Article
Full-text available
The relationships between potential seed productivity, pollinia structure, methods of pollen reception, the sizes of the stigma, and the visitation frequency of orchid flowers were studied. The method of pollen reception by the stigma has a more dominant influence on the ovule number than the structure of the pollinia. Although Cephalanthera specie...
Article
Full-text available
Pollinators of the Steveniella satyrioides were studied in the Crimea. The nectarless orchid is pollinated by two species of wasps: Paravespula vulgaris and Dolichovespula sylvestris. At the end of the flowering period pollinators had visited about 93% of all flowers in the population. S. satyrioides attracts wasps with the help of reddish-brown p...
Article
Full-text available
Chelostoma distinctum and C. fuliginosum were observed to pollinate the orchid C. rubra, which offers no reward to pollinators, and also the bellflower, Campanula taurica, which supplies both pollen and nectar. The bees are attracted to the orchid because it mimics the appearance of C. taurica, and the flowering periods of the 2 species coincide....
Article
Full-text available
A new technique of definition seed production in orchids is proposed. Before account the seeds and ovules are distributed in a special way in a single layer and photographed in transmitted light. Calculation is realized on the photograph by piercing their images. The rate of calculation is 130-150 units per minute.
Article
На сравнительно небольшой территории заповедника (примерно 100 гектаров) зарегистрировано 23 вида орхидных, и многие из них (Acer anthropophorum (L.) R. Br., Anacamptis pyramidalis (L.) Rich., Gymnadenia conopsea (L.) R. Br., Listera ovata (L.) R. Br., Ophrys holos-erica (Burm. f.) Greuter, Orchis mascula L., Platanthera chloranta Rchb.) представле...

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Projects

Project (1)
Project
The main goal of this project is a comparative study of the potential and real seed production of flowers, inflorescences and individuals by terrestrial and epiphytic orchid species. Special attention will be paid to the study of the relationship of these indicators with the characteristics of reproductive biology. All interested researchers are invited to cooperate.