Биология

In article gave the information of rare and endangered species of terrestrial groups of invertebrates recommended for including in the third edition of the Red book of the Saratov Province (RBSP). Also lists species that should be removed from the list of protected species for several established reasons. The main publications over the past 10 years from the time of release the second edition of RBSP on the population dynamics and distribution of endangered species in the region.

Rare and disappearing species Cephalaspidomorphi and fich to be included into the third edition of Red Book of the Saratov region has been compiled on the basis of modern field surveys, collection data, analysis of literature. It contains 2 species cephalaspidomorphi and 16 species fich.

Rare and disappearing species reptiles to be included into the third edition of Red Book of the Saratov region has been compiled on the basis of modern field surveys, collection data, analysis of literature. It contains 7 herpetofauna representatives of region belonging to 3 orders and 5 families.

A list of bird species recommended for inclusion in the third edition of the Red Book of the Saratov region. Three groups stand out among the rare and protected bird species are introduced for the first time – 10; excluded –14; with the change in status – 22.

The list of species of the mammals recommended for entering into the third edition of the Red List of the Saratov region is provided. The necessity to correct and extend the protected taxon list in comparison with the second edition is substantiated.

In the article parameters of photosynthetic apparatus and dependence of the efficiency and rate of photosynthesis on irradiance in flowering plant – parasitic dodder Cuscuta campestris colonized by gallinducing insect from the family of weevils Smicronyx smreczynskii were determined for the first time. Gall formation by Smicronyx smreczynskii is supposed to lead to the increase in the photosynthesis efficiency by the increase in the number of reaction centers of photosystem II of the dodder Cuscuta campestris

Rhizobacteria of the genus Paenibacillus promote plant growth and induced systemic resistance to diverse environmental stresses. Here we present the results for the effect of exopolysaccharides (EPS) obtained from growth of Paenibacillus polymyxa 1465 with different carbon sources on the early stages in the development of wheat (Triticum aestivum L. cv. Saratovskaya 29) and on the peroxidase activity in wheat seedling tissue.

We found that under laser desorption and ionization conditions, quercetin, belonging to the flavonol family, undergoes a decay, which occurs through a photoinduced reaction followed by dimerization of the forming biradical and by the subsequent fragmentation of the dimer. Naringenin, belonging to the flavonone family, also undergoes similar fragmentation, but owing to the lack of conjugation in the C ring, the forming biradical particle is not capable of further dimerization in the same way as observed for quercetin because of its low stability.

Sprygin Herbarium of Penza State University – the largest sci- entific Botanical collection with the international acronym of the PKM, founded in 1894 on the initiative of the largest naturalist Ivan Sprygin. In the collections of the Penza Herbarium contains about 170 000 herbarium sheets of vascular plants, mossy plants, algae, lichens and fungi, of which over 30 authentic samples. Since 2009, the Herbarium is the electronic cataloguing of the collection. Results of revision on the type of genus Alchemilla L. (Rosaceae), Corispermum L.

As a result of critical revision, 37 species of the genus Alchemilla were revealed in the Penza region (Russia): A. acutiloba Opiz, A. atrifolia Zamelis, A. baltica G. Sam. ex Juz., A. breviloba H. Lindb., A. cheirochlora Juz., А. conglobata H. Lindb., А. cymatophylla Juz., А. decalvans Juz., А. exilis Juz., А. glabricaulis H. Lindb., А. hebescens Juz., A. heptagona Juz., A. hians Juz., А. hirsuticaulis H. Lindb., A. homoeophylla Juz., А. leiophylla Juz., А. lessingiana Juz., А. lindbergiana Juz., A. litwinowii Juz., A. macrescens Juz., А. micans Buser, A.