American Journal of Biology and Natural Sciences

Climate change is expected to alter the distribution patterns of endemic mountain flora, yet species-specific responses remain poorly understood in Central Asia. We modeled the current and future potential distributions of five endemic taxa under SSP1–2.6 and SSP5–8.5 climate scenarios for 2050 a...

In the conditions of Uzbekistan, studying the actual nutrition of the elderly and organizing their rational nutrition is one of the important and urgent problems. In order to study the actual nutrition of elderly people, we conducted observation and inspection work among them.

Type 2 diabetes mellitus (T2DM) is a multifactorial condition that impacts multiple organs and might modify telomerase activity, expressed by the hTERT gene, potentially influencing telomere length. The study aimed to investigate of the allelic repeat in the TERT gene at the rs2736100 locus in di...

The global water scarcity crisis and the growing complexity of industrial effluents call for the development of resilient, self-sustaining bioremediation technology. Bacillus subtilis and its phylogenetically close representatives have been casted among the best characterisation candidates in was...

Labor migration has become a structural socio-economic feature of modern Uzbekistan, resulting in millions of children being raised without the presence of one or both parents. This article provides a systematic analysis of the psychological risk and protective mechanisms for these "left-behind" ...

The study aims to estimate some of the biochemical variables associated with pregnant women who aborted in the first months of pregnancy compared to healthy women and the relationship of these variables to early abortion.This includes measurement of prothrombin time, partial prothrombin time, Int...

The experiment was conducted in the graduate laboratory, Department of biology, College of Science, Al-Qadisiyah University, to study the effect of different concentrations of Clorx on sterilizing explanted on the growth response , and study of the effect of different levels of plant hormones and...

Desertification represents a major environmental and socio-economic challenge in arid and semi-arid regions worldwide. This study provides a comprehensive analysis of desertification processes, their climatic and anthropogenic drivers, and their ecological and socio-economic impacts, with particu...

For controlled, large-scale plant multiplication and in vitro regeneration, plant tissue culture (PTC) is an essential tool in plant biotechnology. This review focuses on totipotency, the inherent ability of plant cells to regenerate into full plants, and the principles, techniques, and applicati...

Cutaneous leishmaniasis is one of the parasitic diseases caused by Leishmania species and characterized by many symptoms, ranging from automatic lesion to chronic infection. Disease Development is mainly influenced by host–parasite interactions in addition to balance between cellular Immunologica...

The two-spotted spider mite, Tetranychus urticae Koch, represents a significant threat to global tomato (Solanum lycopersicum) production, causing extensive leaf damage and yield loss through sap-sucking activity. Due to the rapid evolution of acaricide resistance in mite populations and growing ...

Cotton (Gossypium hirsutum L.) is a vital industrial crop, yet its early growth stages are highly vulnerable to the seedling disease complex. This complex, primarily driven by soilborne fungal pathogens such as Rhizoctonia solani, Pythium spp., and Fusarium spp., leads to significant stand loss t...

This article discusses the role of millet in agriculture, its biological characteristics, and the main aspects of its cultivation technology. The impact of agrotechnical measures on yield—such as tillage, seed preparation, sowing dates, fertilization, irrigation, and pest control—is also analyzed...

This article analyzes the biological diversity of terrestrial mollusks distributed in the Fergana Valley and adjacent mountainous regions based on a comprehensive approach. Within the framework of the study, the species composition, systematic structure, morphometric indicators, and ecological gr...

This article presents data on the amino acid content in hulled and hull-less barley varieties. The research objects included the hull-less barley variety “O‘zbekiston-30” and the hulled barley variety “Bolg‘ali”. The amino acid content in grain composition was determined in the laboratory of the ...

In the Jizzakh region, there are 4 protected natural areas and 5 state forestry enterprises, of which the Bakhmal State Forestry enterprise is of particular importance due to its great ecotourism potential.  The organization of ecotourism and other special types of tourism in such natural pl...

In this study, a completely randomized design (CRD) in four treatments was applied: non-inoculated (control), PGPR-inoculated, fungal-inoculated and PGPR-fungal co-inoculated. The study showed a substantial increase in growth attributes of inoculated plants over the control. Plant height increase...

This article presents the technology for producing a vaccine against infectious necrotic hepatitis in sheep and the results of scientific research on the development of a pilot series from the local epizootic strain J-22 isolated in 2022. It also presents the results of studies conducted to deter...

This article describes the species composition, bioecological characteristics, life cycle, and level of damage caused by scale insects (Coccoidea) found on pear (Pyrus communis L.) trees. Under the conditions of the Fergana Valley, species such as Parthenolecanium corni, Quadraspidiotus pernicios...

In this article, the clinical indicators and morphological characteristics of the blood of Holstein-bred black-and-white and Holstein breeds of different selections were studied and analyzed, and the adaptive properties of the organism were determined by the clinical and physiological indicators ...

This article presents the results of a study on the effectiveness of growing sweet pepper varieties under shading nets in the dry subtropical conditions of Uzbekistan. The study evaluated important economically and biologically relevant traits of the Nargiza, Tong, and Dar Tashkenta varieties gro...

This article analyzes the effect of plant training (shaping) on plant productivity when cultivating cucumbers using the wire trellis method. In the experiment, plants were managed by leaving the main stem, one side shoot, two side shoots, and three side shoots. The results showed that when only t...

The article studies the phenological characteristics and the duration of the growing period of leek varieties belonging to the world collection. Based on the analysis results, the studied varieties were divided into three groups according to their growing period: early-maturing (growing period up...