Roman Romanov

Russian Academy of Sciences | RAS · Komarov Botanical Institute

The presented research was conducted during 2019-2022 in south and southeast Kazakhstan to document the species richness, distribution, and ecology of charophytes (Characeae) as a first step towards to estimate the need for species protection. Across the 54 sites, we found ten species and one variety. Chara vulgaris Linnaeus and C. contraria A.Brau...

Nitella sonderi A.Braun is newly reported from the Patagonian Plateau, Argentina. This species was only reliably known from Australia until now. The morphological and genetic studies carried out here found no difference between Argentinian and Australian specimens. The species is dioecious, mucous-bearing on fertile whorls, with two to three-forked...

First records of Xanthophyceae for the Vologda and Sverdlovsk regions, and Moscow, Characeae for the Vologda, Orenburg, Tver regions, diatoms for the Orenburg Region, aphyllophoroid fungi for the Novgorod and Tyumen regions, agaricoid fungi for the Novosibirsk and Vologda regions, and for the Republic of Altai, lichens for the Arkhangelsk and Murma...

Four species and one hybrid of aquatic plants were found for the first time in South Siberian regions: Ranunculus subrigidus W.B. Drew and Utricularia australis R. Br. in Kemerovo Region, Potamogeton × angustifolius J. Presl and Sparganium stoloniferum (Graebn.) Buch.-Ham. ex Juz. in Novosibirsk Region, Elatine triandra Schkuhr. in Tomsk Region. Th...

European paddy fields harbour a morphologically and genetically unusual charophyte that is distant from any other European species. The new species, Chara oryzae from Mediterranean rice fields, was described using an integrated approach, including scanning electron microscopy and molecular phylogenetics. The combination of monoecy, a triplostichous...

The records of new localities of charophytes from the Yenisey Siberia and confirmations for the ones known before were summarized as a result of study of available herbarium collections and field studies during 2007–2021. The twenty species, including one novel genus and five novel species records, 59 new localities (67 % of its total number), 127...

Novel species records for some Russian regions were found as a result of field studies of 2016-2020 and survey of herbarium collections. They improved the species distribution in the Northern Eurasia. The novel species records were revealed for Belgorod, Bryansk, Ivanovo, Leningrad, Omsk, Novgorod, Novosibirsk, Tula, Tyumen, and Vladimir Regions, K...

The original material of Chara fischeri Migula and C. gobiana Vilhelm was located in the herbarium of the Komarov Botanical Institute of the Russian Academy of Sciences (LE) in order to clarify its nomenclature and taxonomy. A study of the original material allowed formal designation of their lectotypes here in accordance with ICN Art. 9.3 for the...

A new species, Chara lipkinii, was described based on specimens from the Mediterranean, Israel. Dioecy, 10-13 branchlets in a whorl, complete tylacanthous to isostichous displostichous axial cortex with very short solitary spine cells, hardly visible diplostephanous bistipulate short obtuse stipulodes, frequently appearing as haplostephanous, in co...

The species Nitella capillaris was reliably found in Russia. It was earlier known from two uncheckable records of ninetieth century from Kaliningrad and Kursk Oblasts. Its new locality in Pskov Oblast is the north-easternmost one in species distribution range. The species was suggested for protection in Russia.

The purpose of the data paper was to introduce into scientific literature the results of scientific work carried out for the third edition of the 'Red Data Book of the Komi Republic'. The article reflects methodological approaches to the formation of a list of rare and in need of protection species and describes the corresponding datasets published...

The new records of genera and species of algae (Chlorodendrophyceae, Chlorophyceae, Cryptophyceae, Mesostigmatophyceae, Raphidophyceae, Xanthophyceae) for the West-Siberian Plain and the Far East, including Altai Krai, Novosibirsk Oblast and Primorskii Krai, were revealed. All species listed are new ones for the regions, 3 genera and 14 species are...

The problem of protecting rare communities in the vegetation cover still remains poorly studied. Currently, it is relevant for aquatic and coastal aquatic plant communities of lakes and river estuaries of the Arkhangelsk Region. Two critical criteria were used to distinguish rare communities: 1) protected species are cenosis-formers, 2) species tha...

Проведены комплексные гидробиологические исследования озер на территории плато Укок, входящего в трансграничную биосферную территорию «Большой Алтай». Показано, что за последние два десятилетия наблюдается рост трофности непроточных озерных водоемов высокогорий Алтая. Полученные результаты можно экстраполировать на всю трансграничную территорию и и...

The original material for some charophyte species described by Lessing (1835), Ruprecht (1845) and Hollerbach (1960) was located in the Herbarium of the Komarov Botanical Institute of the Russian Academy of Sciences (LE) in attempt to clarify their nomenclature and taxonomy. Study of the original material allowed designation of lectotypes here.

Floristic novelties in the Republic of Altai In the Republic of Altai, there are about 7 thousand lakes with a total area of more than 600 km2 and most of them are practically unexplored. Despite the fact that botanical research has been carried out on the territory of the Republic of Altai for a rather long period and generalizing works have been...

Vishnyakov V.S., Romanov R.E., Komarova A.S., Belyakov E.A., Moseev D.S., Churakova E.Yu., Czhobadze A.B., Philippov D.A. 2021. Novyye nakhodki kharovykh vodoroslej (Characeae) v Evropejskoj Rossii [New charophyte records (Characeae) in European Russia]. Botanicheskii Zhurnal. Vol. 106, №1. P. 61–76. DOI: 10.31857/S0006813621010117 (in Russian). Th...

Chara baltica (Hartm.) Bruz. was found in the bays of the northern part of the Black Sea as a result of our joint efforts for clarification of some charophyte species from the region. The species was reported new to Ukraine. This is the first reliable record of this species in the Black Sea Region and Russia. In the studied populations, C. baltica...

The main objectives of this study are to identify the role of external physical and chemical factors in productivity formation of small lakes ecosystems in the south of Western Siberia as well as to assess the impact of these factors on some ecosystem elements (phyto- and zooplankton, macrophytes, benthos) in the light of climate change. The explor...

Действующий перечень объектов животного и растительного мира, занесённых в Красную книгу Ненецкого автономного округа, утверждён приказом Департамента природных ресурсов, экологии и агропромышленного комплекса Ненецкого автономного округа от 27.06.2019 № 25-пр (Приложение 1 к приказу). В настоящее (второе) издание Красной книги включены 229 таксоно...

Pollution of natural water bodies with toxic metals is a pressing environmental problem. Sources of toxic metals can be wastes of rocks and spent ores, wastewater from mines and quarries, wastes of agglomeration industries, emergency situations in the catchment area. Purification of natural water bodies by methods used for wastewater treatment is t...

This paper presents new data on the species of genus Vaucheria in Russia from analysis of original and museum collections. In total, 20 species were identified in 152 locations of 22 administrative regions of the European Russia, Western Siberia, and the Russian Far East. Vaucheria lii, a rare multiregional species new to Russia, has been found in...

Красная книга Архангельской области. Архангельск: САФУ, 2020. 490 с.

Nitella singaporensis is described as a new species based on specimens from Singapore. This study provides detailed examination of the fully mature plant. The species is described here using multiple methods including scanning electron microscopy and molecular phylogenetics. Re-examination of the type specimen of N. caespitosa, the most similar spe...

New species and localities records of charophytes from different regions of Russia, Ukraine, Turkey, Uzbekistan and Kazakhstan have been found during study of collections stored in MW and H. Chara connivens have been reported for Uzbekistan for the first time.

A revision of specimens from selected herbaria allowed extension (or confirmation) of the geographical distribution of five charophyte species. Chara globata is a new record for Africa (Tunisia), Romania and some Central Asian countries, C. dominii for Kyrgyzstan, C. oedophylla for Portugal, Tolypella hispanica for Northern Asia and Lychnothamnus b...

New records to the Characean flora of Sicily are presented. Five species (Chara baltica, C. conimbrigensis, C. oedophylla, Nitella gracilis, Tolypella salina) are new to Sicily, two of them being also new to Italy (Chara conimbrigensis, C. oedophylla). Two species are confirmed for Sicily (Chara aspera, Nitella opaca), three (Chara braunii, C. cane...

In this study, a simple submersible device was tested to remove and recover Cd(II), Cu(II), Pb(II), and Zn(II) from model wastewater and real natural water. To obtain this device, fine particles (< 0.1 mm) of a new hybrid adsorbent based on the mesoporous carbon and Fenton-modified humic acids were fixed onto a highly porous polymeric matrix. The h...

Chara tomentosa L. Nitellopsis obtusa (Desv.) J. Groves The drawings are based on the excellent drawings by M.M. Hollerbach and L.K. Krassavina (1983), and W. Krause (1997).

The Baraba and Kulunda steppes are located in southwestern Siberia in an area with an arid continental climate. This paper presents results of the first study of the hypersaline Lake Krasnovishnevoye (Baraba steppe, TDS (total dissolved solids)=297 g/L, pH 7.88). The major chemical, mineralogical and biological features of the lake were studied and...

The hybrid adsorbent MC-HA-F was prepared by mechanochemical treatment of the mesoporous carbon (MC) and Fenton modified humic acid (HA-F). Then, fine particles of this adsorbent were fixed onto a highly porous polymeric materisl. The obtained composite adsorbent was tested as submersible device for treatment of multi-metal (Cd, Cu, Pb, Zn) model w...

Обсуждается необходимость учета региональных особенностей для определения экологического состояния водоемов и водотоков. Показано, что при оценке качества воды следует применять комплексный подход, включающий как гидрохимические данные, так и индикационные показатели максимально широкого спектра гидробионтов. В понимании результатов биоиндикации ва...

The dataset for charophytes from the Middle Volga Region, including Orenburg region, Penza region, Samara region, Ulyanovsk region, Chuvash Republic, Republic of Mariy El, Republic of Mordovia, Republic of Tatarstan, have been updated under study of Russian charophytes. To date, 18 species from four genera were known from the study area according t...

В первом томе Красной книги Камчатского края «Животные» представлена иформация о состоянии, численности, распространении, биологии, категориях статуса редкости и статуса угрозы исчезновения, государственных мерах охраны редких и находящихся под угрозой исчезновения 130 видов (подвидов, популяций) животных, обитающих на территории Камчатского края и...

All available herbarium specimens and published records have been revised to clarify distribution patterns of charophytes in North-Eastern Europe in an attempt to recognise its identity or difference with other part of Northern Europe. Thirteen species have been found in the Komi Republic and Nenets Autonomous Okrug; however, only 12 of them are co...

Charophytes are commonly easily recognizable plants irrespective of their size due to the recurrent combination of very similar parts within their thalli. A few species are outstanding due to their unusual whip-like appearance with regularly distributed small nodules on the stems formed with whorls of short and nearly rudimentary branchlets. The ce...

Political and economic decisions have led to more drastic changes of aquatic ecosystems, than those caused by hydrological extremes (drought, floods). Examples of this are two transformations of the Sivash Bay (Sea of Azov); a review and analyses of them are given in the paper. Sivash Bay was a hypersaline lagoon before 1963. The North Crimean Cana...

The paper presents data on sapropels from ten lacustrine systems at the Barabinsk and Kulunda plains in Novosibirsk region. The sapropels are classified according to the type of the biological contribution to their origin and the content of organic matter. The sapropel of lakes Kachkulnya and Barchin, which are rich in organic matter and differ by...

Chara dominii oospores (SEM images): (a) overall appearance, (b) apical part, (c) basal cage, and (d) surface structure.

Chara dominii Vilh. is a new species in the flora in Russia. It has been found in Altai krai, Astrakhan oblast, and the Republic of Kalmykia. These findings change the concept of the northern border of the species living range considerably, as practically all C. dominii finds reported up to now were made in Central Asia. A description of the sample...

Summary. All published records of Chara aculeolata Kütz. in Rchb. (= C. polyacantha A. Braun ex A. Braun, Rabenh. et Stizenb.) for Russia have been critically checked in selected herbaria during our revision of Russian charophytes. This species has been reliably found in the study region for the first time in our collections sampled during 2015–201...

The source of images: left one - Krause, 1997; central and right ones are based on images taken by Anders Langangen by his kind permission. I have recently received the Red Data Book published. I haven`t seen its proof version as well I hadn`t received the version edited. Unfortunately acknowlegement for photos of T. canadensis as a source for imag...

The biological productivity of small lakes of different types in the south of Western Siberia from arid steppe to the forest zone was investigated. The major factors influencing the productivity of the water ecosystems were revealed through statistical processing of the obtained data. The main influence on the size of primary production was exerted...

The impact of a number of abiotic factors on efficiency of various components of water biocenosis in small lakes of the South of Western Siberia in various landscape and climatic conditions was defined. The leading factors for the formation of summary production of water ecosystems in arid steppe zone were рН and mineralization, explaining in the s...

The conservation statuses of charophyte species in southern regions of West Siberia have been assessed. The Red Lists have been compiled for Kurgan, Tyumen, Omsk, Tomsk, Novosibirsk, Kemerovo Regions, and Altai Krai based on the criteria of the Red Data Book of Russian Federation.

New localities of a rare charophyte species Tolypella prolifera (A. Braun) Leonh. have been found in Trans-Baikal Territory (Zabaikalskii Krai) and Saratov Region (Oblast). These new findings significantly extend its north-eastern limit of distribution in the Northern Asia, and improve knowledge of its distribution and occurrence in the Lower Volga...

Last decades, cyanobacterial blooms have been commonly reported in Russia. Among the boom-forming species, potential toxin producers have been identified. The aim of this paper was to study the presence of neurotoxic compounds - saxitoxins and anatoxin-a - in water bodies from different regions of Russia. We also made attempts to identify the neuro...

All available records of the charophyte species from particular administrative regions (oblasts) of the Upper Volga region have been checked. The synopsis of localities has been compiled on the base of the specimens studied. Twenty species of charophytes are reliably known in the region, including 12 species of Chara, 7 of Nitella, and 1 of Nitello...

This paper clarifies the distribution and ecology of representatives of the genus Stuckenia (S. chakassiensis (Kaschina) Klinkova, S. pectinata (L.) Börner, S. macrocarpa (Dobroch.) Tzvelev, and S. vaginata (Turcz.) Holub) in brackish and saline lakes in eastern Russia. It is shown that S. chakassiensis grows in most Transbaikal lakes with a high s...

The new localities of six charophyte species have been found in Upper Volga basin based on our field sampling mostly during last years. It also allowed updating available data for two localities previously known. The genus Tolypella represented with T. prolifera has been reported in the region for the first time. The recent presence of Nitella sync...

The new localities of six charophyte species have been found in Upper Volga basin based on our field sampling mostly during last years. It also allowed updating available data for two localities previously known. The genus Tolypella rep resented with T. prolifera has been reported in the region for the first time. The recent presence of Nitella syn...

Vaucheria schleicheri is a widely distributed but relatively rare siphonous yellow-green alga with only a few dozen of reliable records from Western and Northern Europe, Greece, NW Russia, southern part of West Siberian Plain, Manchuria, Japan, several NE regions of North America, and Argentina. V. schleicheri was observed in four new localities in...

A population of Tolypella canadensis Sawa was recently found in North-Eastern Siberia (Yakutia, Russia). An outline of its distribution range had been made according to all existing records. This species was previously found in the northern areas of North America and Europe. The new location in Asia is a final evidence of its circumpolar, arctic-al...

This study describes the unusual growth forms of Chara (Charales) in a natural terrestrial environment in a temperate region (southern Siberia). Chara vulgaris had a moss-like habit and grew on wet soil in small compact turfs probably germinated from oospores. The upper branchlets were curved in a hook-liked manner and convergent above the apex of...

Down to recent times, there were 7 species of charophytes recorded in Tajikistan, including 3 species from 5 localities in the South-Tajik Depression. Basing on published records and studied specimens (LE, NS, private collection), we have recorded 5 species of charophytes in 19 localities within the South-Tajik Depression, including 4 species and 1...

Tolypella prolifera (A. Braun) Leonh. Категория и статус. 3 б-редкий вид, имеющий значительный ареал, в пределах которого встречается спорадически с небольшой численностью популяций. Краткая характеристика. Водный погруженный прикрепленный ризоидами эфемер зеленого или серо-зеленого высотой 4-40 см, обычно инкрустированный известью. Внешний вид тал...

The ancient locality of charophytes is described from the Sindyanna pool, Upper Jordan River Basin, Golan Heights region of Israel. The associated algal diversity was revealed, and ecological assessment of aquatic environment was obtained with bio-indication methods. Algal community was represented by fifty four species one of which is charophyte m...

First study of new locality the Ga’aton River, the Lower Galilee, with charophyte algae, in semi-arid to temperate region of Israel has been implemented for revealing of algal diversity and ecological assessment of the water object environment by bio-indication methods. Altogether twenty species from five taxonomic Divisions of algae and cyanobacte...

The results of studies of the hydrobiological regime of three sapropel lakes in Novosibirsk region in 2012 are presented. The biological production of the examined lakes, the composition and biomass of dominating species–producers of organic matter (phyto� and zooplankton, macrophytes) is determined, and the sedimentation rate of plankton and phyto...

Приведены результаты исследования в 2012 г. гидробиологического режима трех сапропелевых озер Новосибирской области. Определена биологическая продуктивность исследуемых озер, состав и биомасса доминирующих видов�продуцентов органического вещества (фито�- и зоопланктона, мак�рофитов), проведена оценка интенсивности осаждения планктона и растительног...