Saratov Region

The data on the collection of Orthoptera (Insecta: Orthoptera) for 2024–2025 in various biotopes from two protected areas of the Saratov region – Khvalynsky National Park and Nizhne-Bannovsky Natural Monument, as well as from adjacent territories, are presented. A list of 44 species of insects from 3 families is presented, potential pests of agricultural crops found in the studied territories are indicated, as well as species listed in the Red Book of the Saratov region.

 The article reports on the discovery of Keller’s broomrape (Orobanche kelleri Novopokr., Orobanchaceae) in the Saratov region, a species with a fairly extensive range but extremely sporadic occurrence. Information on the distribution of the species in Europe and Central Asia is provided. The nearest known occurrences of this species are from the Rostov and Volgograd regions. O.

Eggplant, or dark-fruited nightshade (Solanum melongena L., 1753), is an important agricultural crop, for which the use of biopreparations based on antagonist microorganisms is advisable. The success of introducing such strains into an agrocenosis is largely determined by their interaction with the host plant’s autochthonous microbial community, which can vary significantly across regions. This study analyzed the microbiota structure of eggplant plants grown in the Saratov region. One hundred healthy leaf samples were microbiologically analyzed.

Soil and climatic conditions are factors influencing the composition and structure of microbial communities of various agrocenoses. Since microbiota plays a key role in the development of plant resistance to pathogens, studying its regional dynamics is of signifi cant scientific and practical interest. A comparative study of the microbiota of eggplant (Solanum melongena L., 1753) plants grown in diff erent soil and climatic conditions in the right- and left-bank areas of the Saratov Region was conducted. One hundred healthy leaf samples were microbiologically analyzed.

For 11 years, the staff of the Scientifi c Research Center “Botanical Garden” of SSU named after N.G. Chernyshevsky have been reintroducing a rare protected plant, Calophaca wolgarica (L. fi l.) DC., into potentially suitable places in the Saratov Region. This species is considered extinct in the region. Restoration of the species in the Saratov Region will expand its range, increase the biodiversity of the local fl ora and enrich biogeocenoses. Seed material for the reintroduction of C. wolgarica was collected from natural cenopopulations in the Volgograd Region.

Concerning the distribution of Allium caeruleum Pall. and A. regelianum A. K. Becker, recent literary sources provide confl icting information. Based on the data from the doctoral dissertation of A. O. Tarasov, the results of expeditionary research and our own herbarium collections, it is stated that Allium caeruleum is distributed in the Ozinsky (at least in the vicinity of the village of Nepryakin) and in the Aleksandrovo-Gaisky (at least in the vicinity of the village of Kamyshki) districts of the Saratov region. The presence of A.

. Water plants and coastal riparian plants are an integral part of the habitat forming component of water ecosystems in Saratov region. This article gives a review of long-term research of fl ora in many water reservoirs and water streams of the Saratov region. The analysis of literature in its historical aspect showed that the degree of scientifi c knowledge about water fl ora in the Saratov region is still insuffi cient despite multiple research projects conducted at the end of the 20th and beginning of the 21st centuries.

For the fi rst time in the southern part of the Volga Upland, a detailed study of the population distribution and structure of rare and protected species Hedysarum grandifl orum Pall., listed in the Red Books of the Russian Federation (2008) and the Saratov Region (2021), was carried out. The study was conducted in 2007–2021. To identify the distribution, data from routine observations and information from herbarium specimens, literary data and oral reports were used.

The results of a parasitological study of uninhabited nests of the common vole Microtus arvalis s.l., collected on territory of the Dukhovnitsky district of the Saratov Region in April 2019 are presented. We identifi ed nine species of gamasid mites associated with nests of the common vole. For the fi rst time, Laelaps algericus Hirst., 1925, was recorded for the fauna of the Dukhovnitsky district of the Saratov Region. We found two new to Saratov region genera of free-living mites (without species identifi cation): Laelaspis A.

The article presents the results of lichens’ research of the National Park «Khvalynsky» in 2011–2013 and data processing of herbarium collection SARAT and other researchers. The annotated list is pre- sented. It includes 65 species. Among them one specie (Cladonia acuminata) is new for the Saratov Region, two species (Cladonia decorticata, Cl. botrytes) are new for the Privolzhskaya Upland.