Anatomical and morphological changes of plant pollen of species of the genus Pinus L. under the influence of pests and diseases
The study of variability of the morphology of pollen grains of the genus Pinus. Differences in the total amount of abnormal pollen under the influence of pests and pathogens of different nature. The possibility of diagnosing of biotic influence on plants.
Подобные документы
The main compounds of the Н. arenarium essential oil were oleic acid, ethyl hexadecanoate, sclareol. The extracts showed a high level of total phenolic content, which make the studied plant species as a potential source of natural antioxidant or a source.
статья, добавлен 10.06.2022Анализ изменчивости 20 аллозимных локусов, генетических особенностей растений с высоким и низким уровнями опыленности и оплодотворенности семяпочек Pinus stankewiczii. Значение доли полиморфных локусов и количества аллелей для высокоопыленных деревьев.
автореферат, добавлен 07.04.2014The morphology of the leech (size of the body and gills, structure of the cuticle) and molecular-genetic diversity of the species. Study of its properties, current status in water bodies, and methods of reproduction in natural and laboratory conditions.
статья, добавлен 05.09.2024The figures are constantly growing. Before choosing them, determine the parameters of the requirements for them and objectively assess the level of technological support of the economy, composition and fertility of soils, the level of their cultivation.
статья, добавлен 16.06.2024Consideration kind Podolaspis Zych of three types: podolica Alth, lerichei and zychi. The first description and nomenclature discrepancy delivery Parapteraspis and Mylopteraspis Stensio. Species variability pteraspid - morphology orbitsphere pineal belt.
статья, добавлен 15.04.2014The peculiarity of the reduction of natural habitats of rare plant species. Ontogenetic characteristics of some rare and endangered species common in the north-eastern part of the Lesser Caucasus, the state of their coenopopulations were studied.
статья, добавлен 04.09.2024Regularities of changes in the fractional-group composition of humus of sod-podzolic soil under the influence of various fertilizer systems in the conditions of Western Polesie. Favorable conditions for the accumulation of humus in the arable soil layer.
статья, добавлен 29.06.2022Feed plants are dynamically utilized by humans. This leads to a decreasing supply of feed plants. For this purpose, we studied the rare species of feed plants in the vegetation of Gunnut-Kapychik physiographic area where we conducted our research.
статья, добавлен 10.10.2024Investigation of the influence and localization of cryopreserved ossified multipotent mesenchymal stromal cells with intravenous administration to animals with ovarian inflammation. Substantiation of reparative activation of ovarian tissue morphology.
статья, добавлен 28.09.2016Influence of Cu2+, Zn2+, Ni2+, Cd2+, Al3+ and Cr6+ on the pigment synthesizing yeasts Rhodotorula glutinis 1333. Yeasts ability to lose pigment under different heavy metals concentrations. The certain metal concentrations’ presence in the medium.
статья, добавлен 29.01.2017Metabolic signs of abiotic stress limiting plant growth and productivity. Study of biochemical, physiological and molecular mechanisms regulating adaptation of pea plants to salt stress. Development of salt-tolerant plant varieties in saline areas.
статья, добавлен 10.10.2024The decorative properties of woody plants. Woody plants provide a number of ecosystem services to urban landscapes. Most of the plants used for landscaping perform an important decorative function together with the architectural ensemble of cities.
статья, добавлен 10.10.2024Characterization and study of bacterial diseases on agricultural crops and weeds under different cropping systems. The definition of biological properties, identification of pathogens, traditional and modern molecular-genetic methods of research.
статья, добавлен 29.01.2016Vegetable objects and edible and medicinal fungi are described by the method of electron microscopic research on bacteria, phages, viruses, fungi. The pathogens of different taxonomic groups under the conditions of latent infection are revealed.
статья, добавлен 28.12.2017Study of the influence of nitrogen and carbon sources on the synthesis of enzymes. Carrying out a bifractor experiment to determine the optimum concentrations of ammonium sulfate and arabinose in a nutrient medium, which increase the elastolytic activity.
статья, добавлен 28.09.2016Investigation of the unique plant communities of Ordubadsky district. Classification of structures of the mountain-xerophytic and steppe flora of the region. Identification of the taxonomic composition and classes of tree species of the Rosaceae family.
статья, добавлен 10.10.2024Jasmonic acid biosynthesis. Molecular mechanism of jasmonate action. Jasmonate biological activity. Regulation of seed germination. Influence on ageing processes. Jasmonic acid and sex determination and immunity. Involvement in adaptation processes.
статья, добавлен 03.06.2016Comprehensive analysis of indicator traits using multivariate statistical analysis for each species. Identification of valuable species and accessions for future selection and application of other genetic programs for oak improvement in the Caucasus.
статья, добавлен 10.10.2024Information about the brown long-eared bats in Luhansk region, to consider the prevalence, typical habitats and analyze morphometric peculiarities of the species. The presence of a stable local population of the brown long-eared bats in Luhansk region.
статья, добавлен 25.03.2016Description of the reasons for the disappearance of types of illegal hunting, deforestation, pollution of water bodies. Statistics reduce some species of animals in Ukraine. The red book as a collection of endangered species of animals and plants.
презентация, добавлен 25.02.2016Identification of fern taxa in the northeastern part of the Lesser Caucasus. Analysis of herbarium information and field descriptions. Information on three-dimensional spatial areas of plant locations: taxonomic types, morpho-biological variability.
статья, добавлен 10.10.2024Biotechnological approaches allow the production of transgenic plants with enhanced resistance to viruses. The main transgenic strategies for virus resistance include: RNA interference, coat protein-mediated resistance, and replicase-mediated resistance.
статья, добавлен 03.09.2024The adaptation of plants to an excess of heavy metals in the environment and their recovery after elimination of the stressor. The aftereffect of copper ions in plants of Nicotiana tabacum L. The level of plant stress markers during the recovery period.
статья, добавлен 13.04.2022The influence of temperature on the development and reproduction of codling moth butterflies. Study of the optimal temperature regime for mass reproduction of codling moth in laboratory conditions. Maintaining viability in an unfavorable environment.
статья, добавлен 10.10.2024General information on the distribution of the new invasive mildew, Podosphaera amelanchieris Maurizio, registered in Belarus, Ukraine. The distribution of fungi, species and morphological characteristics. Comparative characteristics of several species.
статья, добавлен 01.12.2017