Research List

No.	Researcher	Title	Abstract	Year
1751	Swe Swe Win	POLLEN MORPHOLOGY OF SOME SPECIES OF BIGNONIACEAE IN LASHIO AREA	The pollen grains of 15 species from 14 genera of Bignoniaceae in Lashio area were investigated by using light microscope. The species studies were included in genera Campis, Dolichandrone, Haplophragma, Jacaranda, Mansoa, Mayodendron, Millingtonia, Oroxylum, Podranea, Pyrostegia, Radermachera, Spathodea, Tabebuia and Tecoma. Pollens collected from mature flowers were analyzed by acetolysis method of Erdtman 1960. The pollen grains of the species studied were monads with radially symmetrical; apolar or isopolar; tricolpate in 7 species, tetracolpate in only one species, tricolporoidate with ill-defined endoaperture in 4 species, tricolporate with lolongate endoaperture in 2 species and polycolpate in only one species; the apertures position showed zonocolpate in most species but pantocolpate in Mansoa alliacea; mostly subprolate to prolate except from those of Tecoma stans and Radermachera yunnanensis; circular, rounded triangular to triangular amb; exine sculpture psilate in one species, microreticulate in 3 species and reticulate in 11 species; homo- or heterobronchate lumen, with simpli or duplibaculate muri. The resulting pollen morphological diversity may offer some taxonomic potential and interrelationships among the studied species.	2021
1752	Tin May Htwe	ISOLATION OF SOIL FUNGI FROM THREE VILLAGES OF KATHA TOWNSHIP AND THEIR ANTIMICROBIAL ACTIVITIES	In the present research, soil samples were collected from three different places of Katha Township, Sagaing Region, during July 2019 and isolated them by the serial dilution method. The media used for the isolation includes Blakeslee�s Malt Extract Agar (BMEA) medium and Potato Dextrose Agar (PDA) medium, incubated for 3-7 days at room temperature. Pure colonies were preserved into slant culture containing PDA medium. Twenty fungal strains were obtained. The surface colours of all isolated fungi are white, black, blue, brown, cream, green, dark green, pale yellow, pink, yellow and greenish yellow and their reserve colours are brown, cream, pale yellow, pink, red and yellow. In the colony morphology, the isolated fungi are medium and large in size. The margin of isolated fungi are entire, undulate, filamentous and the elevation of isolated fungi are flat, umbonate and raised. In the form, isolated fungi are irregular, circular and filamentous. Furthermore, the antimicrobial activity of all fungal strains were tested by agar well diffusion method on eight test organisms. Among them, four fungal strains showed the antimicrobial activity on all test organisms. Especially, TM- 14 and 16 showed the highest antimicrobial activity. These findings suggested that the soil fungi may be utilized for screening of the antimicrobial substances and to treat the diseases caused by pathogenic microorganisms.	2021
1753	Shwe Yee Win	ISOLATION AND CHARACTERIZATION OF SELECTED SOIL BACTERIUM SY-7 FROM MYINT THA TOWNSHIP, MANDALAY REGION	The present paper was focused on the isolation and characterization of selected soil bacterium. Soil samples were collected from three different area of Yoar Thit village of Myint Tha Township, Mandalay Region and cultured on FLO medium and Nutrient Agar Medium. The total of ten bacterial colonies were obtained and designated as SY-1 to SY-10. Antimicrobial activities of all strains were carried out by agar well diffusion assay on 5 test organisms. Among them, SY-7 showed the highest antifungal activity (32.26 mm) on Candida albicans. Therefore, SY-7 was selected and identified by morphological, microscopical and biochemical characteristics. In the morphological characterization, SY-7 was medium in size, rod-shaped, margin entire, spore present and cream colour. According to the results of biochemical characters, SY-7 was characterized as the genus Bacillus. This research can provide screening the antimicrobial activity and identification of soil bacteria by using the different biochemical characters.	2021
1754	Theingi Aung	ISOLATION AND CHARACTERIZATION OF ANTIBACTERIAL COMPOUNDS ISOLATED FROM ENDOPHYTIC ACTINOMYCETES (TG-16)	The research was concerned with isolation, purification and partial characterization of antibacterial compounds of isolated endophytic Actinomycetes TG-16 from the stem of Tadehagi triquetrum (L.)H.Ohashi. These experiments were conducted by solvent extraction, thin layer chromatography, silica gel column chromatography, UV and FT IR spectroscopic analyses. The plant sample was collected from Pathein University Campus. The fermented broth of isolated strain TG-16 was carried out by paper chromatography using with four solvents for the extraction of antibacterial metabolites. the Actinomycetes culture filtrate was studied by the different ratio of two solvents. According to this result, the active metabolite, 15 liter was extracted by using n-butanol to fermented broth (1:1v/v). The analysis of separation, purification, and partial characterization of isolated compounds indicated that compound A (aromatic derivatives, 15 mg, colorless crystal) and compound B (steroid derivatives, 14 mg, white amorphous solid). Further evaluation of minimum inhibitory concentration of compounds showed the value of 3.125 �g/mL in compound B while compound A did not exhibit antibacterial activity against E. coli. This study revealed the presence of bioactive compounds in isolated strain TG-16, which may be a promising resource for the discovery of bioactive metabolites against multidrug resistance of E. coli.	2021
1755	Yin Kyay Khin	PROBIOTIC EFFECT OF LACTOBACILLUS SP. (H-1) ISOLATED FROM SAUERKRAUT AND USED IN CHICKEN FEED	In this study, the Lactobacillus sp. (H-1) isolated from sauerkraut that was used as probiotic in chicken feed. There were 7 dietary treatments for investigation of probiotic activity on broiler chicken growth. The experiments were conducted during May 2019 to November 2019 in the Fermentation Department (Pharmaceutical Research Department, Ministry of Industry - 1, Yangon Region) and chicken farm in Ngwe Nantthar village, Hlegu Township. The chicks in the group D which were fed with 0.015% dried isolated bacteria (with nitrogen source) provide the optimal body weight gain than other group but the chicks in group E which were fed with 0.005% dried isolated bacteria (without nitrogen source) showed lowest body weight gain among 7 groups. Similarly, the chicks in the group D also provided feed consumption, reduce mortality rate compared to those of control group. It can be concluded that the best results were found in group D (0.015% dried bacteria of Lactobacillus sp.) fed to the chickens.	2021
1756	Zin Mar Soe	WATER QUALITY AND THIRTY-FIVE SPECIES OF BLUE-GREEN ALGAE FOUND IN TWIN TAUNG LAKE	The present study deals with the seasonal variation of algae and water analysis of Twin Taung Lake, Budalin Township, Monywa District, Sagaing Region. Algae and water samples were collected from October, 2018 to September, 2019. Physico-chemical parameters were analyzed in the laboratory of Department of Quality Control, June Pharmaceutical and Food Industry in Sagaing. Statistical analysis was carried out using R Studio software. Totally 35 species of Cyanophyceae were classified and recorded. Among them, Chroococcus, Microcystis, Anabaenopsis occurred throughout the year. Maximum values of temperature, sodium bicarbonate, total hardness and nitrate were found in summer; sodium carbonate, total alkalinity and total chloride were in rainy season and the maximum pH and phosphate occurred in winter. Highest value of salinity was in January and April. Maximum density of Chroococcus and Anabaenopsis was observed in summer. The growth of Chroococcus was positively correlated with salinity and negatively correlated with total alkalinity and phosphate. Growth of Anabaenopsis was positively correlated with pH, salinity, total hardness and nitrate. Growth of Microcystis was observed in winter and it was significantly correlated with season and positively correlated with pH and total hardness. It may be due to fluctuations of physico-chemical parameters of water in three seasons.	2021
1757	Zin Moe Moe	EFFECT OF THE WATER REQUIREMENTS ON SOLANUM LYCOPERSICUM L. DURING RAINING SEASON	This experiment was conducted to evaluate the effect of amount of water on the vegetative and reproductive growth of tomato and to assess the suitable irrigation to improve the economic efficiency of tomato production. Present investigation was carried out during April to July, 2019 at Oakshitpin Village, Padaung Township, Bago Region to observe the effects of variable water of tomato crop. The four treatments of water requirements were used. This experiment was treated with T1 (0.05-0.27 L), T2 (0.21 - 2.07 L), T3 (0.36 - 2.22 L) and T4 (0.50-2.37 L). Each treatment had five replications set up in Randomized Completely Block Design (RCRD). Tomato was evaluated in farmer's field with farmer�s participation under plastic house condition for yield potential and other yield characters using the effect of amount of water during rainy season. The germination rate of Solanum lycopersicum L. was 75.60 %. Vegetative growth such as plant height (17.21 cm), number of leaves per plant (17.97), leaf length (12.22 cm) and single leaf area (78.95 cm2 ) were the best in T2 (0.21 - 2.07 L). Reproductive growth as earliest first flowering days (36 DAT), number of clusters per plant (7), number of fruits per cluster (6.9), single fruit diameter (5.01 cm), fruits weight per plant (282.10 g) and fruits yield (4798.74 kg ha-1 ) were highest in T2 (0.21 - 2.07 L). T2 (0.21 - 2.07 L) could be recommended for commercial production under plastic house condition during rainy season.	2021
1758	Ah Nge Htwe	TAXONOMIC STUDY ON SOME WILD ORCHIDS OF KENNEDY MOUNTAIN IN TEDIM TOWNSHIP, CHIN STATE	Chin state is mostly covering with subtropical evergreen forests and distribution with many wild orchids. The members of Orchidaceae from Kennedy Mountain, Tedim Township, Falam District in Chin State, the North-western part of Myanmar had been collected and studies. Its area is about 2410 square kilometer. The orchids were collected in all seasons within the December, 2019 to June, 2020. Altogether, 35 species of Orchidaceae in study area were collected, identified and classified. Of these, 6 genera and 10 species including 9 species epiphyte and 1 species lithophyte. All collected species are fully described with necessary photographs and figures. Moreover, on artificial key to the species of the plants, their local name, English name and flowering periods are also described of the 2 species of sub-family Vandoideae and 8 species of sub-family Epidendroideae were included. The system of Seidenfaden (1992) was adopted as the classification system in the present research.	2021
1759	Pa Pa Win	SPECIES DIVERSITY AND STAND STRUCTURE OF DRY ZONE FOREST IN SHINMA TAUNG HILL, YESAGYO TOWNSHIP, MAGWAY REGION	A quantitative study of tree species was carried out in Shinma taung hill, Yesagyo Township. To find out the diversity of trees and to know the forest stand structure, 20 quadrates [20m x 20 m] in the study site were established and studied. Species diversity was presented by diversity index. In the study area, Shannon Wiener�s index and Simpsom index were 4.24 and 0.74. In the present study, 54 species, 44 genera belonging to 29 families were found in study area. Relative density, relative frequency, mean basal area and relative dominance were calculated. IVI values of major tree species were presented by ranking order. In this study area, ecologically the most successful species were Tectona hamiltoniana Wall. (Dahat) 58.13%, Terminalia oliveri Brandis (Than) 47.88%, Hiptage benghalensis (L) Kurz. (Bein nwe) 14.86%, Bridelia retusa (L.)A.Juss (Seik chi) 11.95% and Capparis flavicans Wall (Saung gyan) 9.17%. It was influenced by Tectona hamiltoniana Wall. (Dahat) and Terminalia oliveri Brandis (Than) in this region.	2021
1760	Thin Thin Aye	TAXONOMY AND POLLEN MORPHOLOGY OF GENUS DESMODIUM IN PAPILIONOIDEAE	Taxonomy and pollen morphology of 8 species belonging to genus Desmodium of Papilionoideae were studied. The specimens were collected from Magway Region during 2019-2020. Taxonomic descriptions, artificial key to the species and photographs of each species were presented. According to the resulting data, Desmodium confertum DC., D. jucundum Thw, are perennial and the remaining species are annual. The unifoliolate leaves occurred in D. renifolium (L.) Schindl., D. teres Wall., D. velutinum (Willd.) DC. and the remaining species are trifoliolate. Pollen morphology of each species was studied. Pollen grains found are monad and aperture colporate. All study species were found tricolporate and pori lalongate. Pollen of D. confertum DC., D. velutinum (Willd.) DC. are small sized and the remaining species are medium. Three types of exine sculpture (psilate, reticulate, microreticulate) were found. D.confertum DC. is reticulate; D. griffithianum Benth. is psilate and the remaining species are microreticulate. Pollen key to the species were constructed on different palynological characters.	2021

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