{"title":"LE AF DEVELOPMENT IN CURIO MUIRII (L. BOLUS) VAN JAARSV. (ASTERACEAE - SENECIONEAE)","authors":"A. Fedotov, L. V. Ozerova, A. C. Timonin","doi":"10.55959/msu0027-1403-bb-2024-129-1-31-43","DOIUrl":"https://doi.org/10.55959/msu0027-1403-bb-2024-129-1-31-43","url":null,"abstract":"Curio muirii is the only species in the genus with bifacial leaves, making it crucial for understanding leaf evolution in this group. Leaf development can be divided into three stages: initiation, bizonal primordium, and intercalary growth. The developing leaves of C. muirii are bifacial and resemble those of other angiosperms from inception to the end of the bizonal primordium stage. However, as in monocots, the primary vascular bundles differentiate at the end of the bizonal primordium stage. The unifacial forerunner tip, which is recognized for Curio species but unknown for other eudicots, is the rst discernible part of the de nitive leaf. The leaf blade and petiole in C. muirii are distinctive in their biphasic development during the intercalary stage. The petiole grows faster than the leaf blade during the rst phase. During the second phase, the lamina overcomes the petiole in terms of length. In the developing leaf blade, the marginal meristem was not found. Adaxial meristem activity causes the leaf base to thicken unevenly during intercalary growth and envelopes the younger leaf primordium in the resultant depression.","PeriodicalId":517078,"journal":{"name":"Byulleten' Moskovskogo Obshchestva Ispytatelei Prirody Otdel Biologicheskii","volume":"47 19","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-04-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140733785","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"PARASITOIDS OF SMALL SPRUCE BARK BEETLE IPS AMITINUS (EICHHOFF, 1872) (COLEOPTERA, CURCULIONIDAE: SCOLYTINAE) AND ASSOCIATED XYLOPHAGES IN THE EMERGING INVASIVE AREA","authors":"E. Chilakhsaeva, YU.I. GNINENKO YU.I., E. Tselikh","doi":"10.55959/msu0027-1403-bb-2024-129-1-24-30","DOIUrl":"https://doi.org/10.55959/msu0027-1403-bb-2024-129-1-24-30","url":null,"abstract":"The list of parasitoids inhabit in the centers of mass reproduction of the allied bark beetle Ips amitinus (Eichh.) in the Tomsk Region is given. Parasitoids were reared from the branches cut in the upper parts of the crowns to the Siberian pine Pinus sibirica Du Tour., inhabited by the allied bark beetle. The branches were collected in the centers of its mass reproduction in the Tomsk region, in the invasive part of the range of this xylophagous allied bark beetle. In addition to Ips amitinus, the branches were inhabited by Pityogenes chalcographus (L.), Pityogenes conjunctus Rtt., Pissodes piniphilus (Hbst), and Monochamus saltuarius Gebler. In total, 11 species of xylophagous parasitoids inhabiting branches were found, including 5 parasitoids of the union bark beetle: Coeloides ungularis (Thomson.), Dinotiscus eupterus (Walker), Tomicobia seitneri (Ruschka), Rhopalicus tutela (Walker), Roptrocerus xylophagoraum (Ratzeburg). Eubazus semirugosus (Nees), Spathius rubidus (Rossi), Eurytoma arctica Thomson, Tomicobia pityophthori (Bouček), Rhopalicus quadratus (Ratzeburg) were bred from the branches that dwelt Ips amitinus и Pityogenes chalcographus. Braconid Coeloides ungularis Thomson as the host of Ips amitinus is indicated for the rst time.","PeriodicalId":517078,"journal":{"name":"Byulleten' Moskovskogo Obshchestva Ispytatelei Prirody Otdel Biologicheskii","volume":"5 7","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-04-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140733042","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"ADAPTATION OF PHYTOPHAGES AND PHYTOPATHOGENS TO NEOPHYTES OF THE GENUS IMPATIENS L. (BALSAMINACEAE) IN MOSCOW REGION","authors":"A. Kuklina, O. A. Kashtanova, O. Tkachenko","doi":"10.55959/msu0027-1403-bb-2024-129-1-44-53","DOIUrl":"https://doi.org/10.55959/msu0027-1403-bb-2024-129-1-44-53","url":null,"abstract":"Results of a five-year study of phytophages and phytopathogens in the Moscow region on two invasive species of the genus Impatiens L. (Balsaminaceae): I. parviflora DC. and I. grandi ora Royl. are presented. The damaging complex consists of representatives of herbivorous polyphages, fungal pathogens, phytoviruses and indicates the adaptation of autochthonous phytotrophic organisms. 6 phytophages and 4 pathogens of fungal diseases at I. parvi ora, and 5 phytophages, 4 fungal phytopathogens and 3 phytoviruses at I. glandulifera were found. During the study period, there was no critical increase in the density of populations of harmful arthropod species and the development of epiphytoties.","PeriodicalId":517078,"journal":{"name":"Byulleten' Moskovskogo Obshchestva Ispytatelei Prirody Otdel Biologicheskii","volume":"10 16","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-04-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140732619","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"THE BOBAK MARMOT (MARMOTA BOBAK) AND FLORISTIC\u0000DIVERSITY OF STEPPE MEADOWS IN THE BRYANSK REGION","authors":"Oleg I. Evstigneev, A. Gornov, E. A. Gavrilyuk","doi":"10.55959/msu0027-1403-bb-2024-129-1-3-15","DOIUrl":"https://doi.org/10.55959/msu0027-1403-bb-2024-129-1-3-15","url":null,"abstract":"The role of steppe marmots, or the bobak marmots, in the formation and maintenance of the structural and species diversity of steppe meadows is shown. Due to grazing, animals form small-grass meadows within their settlement. The marmot’s trophic activity hinders the development of tall grasses: Bromopsis inermis, Calamagrostis epigeios, Elytrigia repens etc. Without grazing,large grasses form cenotically closed groups and displaces most of the weakly competitive meadow plant species. During the growing season, marmots change the set of consumed grasses. This excludes the digression of the small-grass meadow in their settlement. Thanks to the burrowing activity marmot’s settlements appear in the meadows. Unique ecological conditions of marmot’s settlements contribute to the formation of microgroups of dry meadow species. In addition, annual and biennial plants, as well as nitrophilous, nemoral and boreal plants, which are not characteristic for steppe meadows, are actively introduced into marmot’s settlements.","PeriodicalId":517078,"journal":{"name":"Byulleten' Moskovskogo Obshchestva Ispytatelei Prirody Otdel Biologicheskii","volume":"12 3","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-04-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140733144","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}