Volume 21, Issue 1 (2021) | OnLine Journal of Biological Sciences

Abiotic Stress Elicitation on Secondary Metabolites of Red Betel (Piper crocatum Ruiz and Pav.) Leaves as Potential Repellent for Rice Bug (Leptocorisa oratorius (F.)

Intani Quarta Lailaty — 2021-01-23

OnLine Journal of Biological Sciences, Published online: 23 January 2021; doi:10.3844/ojbsci.2021.1.11

Rice bug, Leptocorisa oratorius (F.), is the main pest of rice plants which can reduce rice productivity significantly. Natural insecticide from plant extract compounds, such as Red Betel (Piper croca...

Arbuscular Mycorrhizae: Under-Tapped Potential Benefits and Perspective on Africa

Osarenkhoe Omorefosa Osemwegie — 2021-01-27

OnLine Journal of Biological Sciences, Published online: 27 January 2021; doi:10.3844/ojbsci.2021.12.25

Arbuscular Mycorrhizal Fungi (AMF) is attracting global attention as organic fertilizers and alternatives to chemical fertilizers in crop management practices. Mycorrhizae technology application in Af...

The Dynamic of Afamin and Alpha-Fetoprotein Expression during Rat Liver Development

Indriyani — 2021-02-05

OnLine Journal of Biological Sciences, Published online: 5 February 2021; doi:10.3844/ojbsci.2021.26.32

Liver has a high level of Alpha-fetoprotein which is assumed to be important for mammalian development. However, Alpha-fetoprotein knockout studies in mice suggested that despite the absence of Alpha-...

Crop Yield and Quality of Lentil Varieties in the Conditions of the Southeast of Kazakhstan

Alma Zhumabaevna Saikenova — 2021-01-29

OnLine Journal of Biological Sciences, Published online: 29 January 2021; doi:10.3844/ojbsci.2021.33.40

The article presents the results of the three-year research aimed at studying and determining lentil varieties with high yields, suitable for mechanized harvesting (tall with the high attachment of lo...

Analysis of Tree-Ring Chronologies in Coniferous Forests of Southeastern Kazakhstan

Ainur Utebekova — 2021-02-05

OnLine Journal of Biological Sciences, Published online: 5 February 2021; doi:10.3844/ojbsci.2021.41.47

The aim of the present research was to study the spatial and temporal patterns in the growth response of spruce to climate change at different altitudes (upper, middle and lower) of mountainous terrai...

Measurement of the Gene Expression and Polymorphisms of c-myc and p53 Genes in HBV Infected Patients

Fayed Koutb — 2021-02-22

OnLine Journal of Biological Sciences, Published online: 22 February 2021; doi:10.3844/ojbsci.2021.48.58

This study explained the c-myc and p53 gene expression and polymorphisms in chronic (40), cirrhosis (30) and Hepatocellular Carcinoma, (HCC) (30) patients related to Hepatitis B Virus (HBV) infection ...

Assessment of the Сombining Ability of Sweet Clover Basic Material in Northern Kazakhstan

Gulzhiyan Begalievna Bekimova — 2021-02-11

OnLine Journal of Biological Sciences, Published online: 11 February 2021; doi:10.3844/ojbsci.2021.59.68

The paper presents the evaluation of the total combining ability of the seed parents of white sweet clover Melilotus albus and yellow sweet clover Melilotus officinalis based on leaf formation, forage...

Molecular Characterization and Differentiation of Proteases Isolated from Different Aspergillus Fungal Species

Samia Abd Allah Abdal-Aziz — 2021-02-11

OnLine Journal of Biological Sciences, Published online: 11 February 2021; doi:10.3844/ojbsci.2021.69.119

A comparative molecular study of Aperigiullus protease using sequence of protease gene representative 25 different Aspergillus species (Aspergillus fumigatus, Aspergillus oryzae, Aspergillus flavus, A...

A Meat-Derived Lactic Acid Bacteria, Lactobacillus plantarum IIA, Expresses a Functional Parvulin-Like Protein with Unique Structural Property

Cahyo Budiman — 2021-02-26

OnLine Journal of Biological Sciences, Published online: 26 February 2021; doi:10.3844/ojbsci.2021.120.135

The genome sequence of a Lactic Acid Bacterium (LAB) Lactobacillus plantarum IIA contains a single gene encoding a parvulin-like protein (Par-LpIIA). This protein belongs to Peptidyl Prolyl cis-trans ...

Comparison of Nonlinear Models for Dry Matter Yield of Brachiaria Hybrid cv Cayman in Drought Season by Bootstrapping

Danny Villegas Rivas — 2021-03-15

OnLine Journal of Biological Sciences, Published online: 15 March 2021; doi:10.3844/ojbsci.2021.136.143

The dynamics of biomass accumulation at different seasons of the year is of vital importance in the production of a forage species. In this study nonlinear models (logistic and gompertz) to describe g...

Investigation of Factors Influencing the Reproduction of Non-Gregarious Locust Pests in Northern Kazakhstan to Substantiate the Forecast of their Number and Planning of Protective Measures

Kurmet Baibussenov — 2021-03-17

OnLine Journal of Biological Sciences, Published online: 17 March 2021; doi:10.3844/ojbsci.2021.144.153

The article presents the results of many years of research on the phytosanitary state of agricultural land for non-gregarious locust pests. As polyphagous pests, non-gregarious locusts are one of the ...

Influence of Starter Cultures' Type on the Microbiological, Rheological and Sensory Properties of Ayran Samples from Goat's Milk

Аlma Aytkozhaevna Shunekeyeva — 2021-03-24

OnLine Journal of Biological Sciences, Published online: 24 March 2021; doi:10.3844/ojbsci.2021.154.160

Dairy products are one of the most widely-investigated food products. However, reducing cost while improving nutritional value and flavour is a classic problem in milk production. Besides, consumers h...

Genetic State of Pulsatilla Patens (L.) Mill. Coenopopulations Based on DNA Labeling

Rustem Saltanovich Beishov — 2021-04-02

OnLine Journal of Biological Sciences, Published online: 2 April 2021; doi:10.3844/ojbsci.2021.161.171

In the article, the results of studying the gene pools of the Kazakhstan coenopopulations of a rare plant species Pulsatilla patens (L.) Mill. are shown. The biomaterial taken from five coenopopulatio...

Assessment of the Elements of the Sudan Grass Cultivation Technology in the Zone of Dry Steppes

Beybit Nasiyev — 2021-03-26

OnLine Journal of Biological Sciences, Published online: 26 March 2021; doi:10.3844/ojbsci.2021.172.180

Sudan grass (Sorghum Sudanese (Piper.) Stapf) is the most productive, drought-resistant and promising crop for the dry-steppe zone of Western Kazakhstan. In this regard, in order to ensure an uninterr...

Microflora Contribution to Cellulase and Digestion Enzyme in Mud Crab Digestive Tract

Siti Aslamyah — 2021-03-26

OnLine Journal of Biological Sciences, Published online: 26 March 2021; doi:10.3844/ojbsci.2021.181.187

Microflora in the digestive tract of aquatic animals is thought to be not only the microbes that contribute to the production of cellulase enzymes but also contribute to other digestive enzymes, such ...