Research List

No.	Researcher	Title	Abstract	Year
981	Hnin Yu Maw	POLLEN MORPHOLOGY ON TEN SPECIES OF SAPINDALES FOUND IN MANDALAY REGION AND SOUTHERN SHAN STATE	The pollen morphology of 10 species belonging to 10 genera of Sapindales was studied. The specimens were collected from Mandalay Region and Southern Shan State from 2017 to 2018. The collected plants include 2 species of Anacardiaceae, 1 species of Sapindaceae, 5 species of Rutaceae and 2 species of Meliaceae. The examined of pollen grains were found in monad type. The morphological characters of each grain were studied. The aperture types of all the pollen grains were porate and colporate; triporate in one species, tricolporate in 5 species and tetracolporate in 4 species. The pollen shapes were found in prolate, oblate spheroidal, subprolate to prolate spheroidal. The sizes of pollen grains were small and medium. The small sizes of pollen grains was found in 6 species and medium size of pollen grains was found in 4 species.The sculpture patterns of 10 species are varied from psilate, reticulate to obscurely reticulate.	2020
982	Shwe Yee Win	ISOLATION AND OPTIMIZATION PARAMETERS OF FERMENTATION CONDITIONS OF SELECTED SOIL BACTERIUM (SY-17) FROM MYINT THA TOWNSHIP, MANDALAY REGION	Soil samples were collected from six different areas of Yoar Thit village, Kin Sein Zay and Pauk Myang village of Myint Tha Township, Mandalay Region. These sample were cultured on Flo Medium, Nutrient. Agar medium, CAS medium, Glucose Peptone Agar medium and Centenum medium. The experiments were carried out at the Microbiology Laboratory of Botany Department in Mandalar Degree College. A total of 36 bacterial colonies were obtained from these soil samples. These isolated bacteria were designated as SY-1 to 36. Antimicrobial activity of all strains were carried out by agar well diffusion assay with five test organisms. Among them, SY -12, 13, 17, 22, 27, 29 and 32 strains showed different levels of antimicrobial activities. Especially, SY-17 showed the highest antifungal activity (39.06 mm) on Candida albicans. Therefore, SY-17 was selected and the fermentation condition of this bacterium was carried out by the study of fermentation period 3 days (27.77 mm), proper age 72 hrs (26.02 mm), size 20 % (16.86 mm), different carbon sources maltose (38.05 mm) and nitrogen sources sodium nitrate (48.19 mm), effect of fermentation medium FM 5 (29.98 mm), pH 7 (21.95 mm), temperature 25�C (39.65 mm), and shaking (34.01 mm) and static culture (26.02 mm) on antimicrobial activity against Candida albicans. It result of this work can provide the knowledge of nature of soil bacteria and how to select active strains exhibited against some test organisms.	2020
983	Than Than Yee	INVESTIGATION OF NUTRITIONAL VALUES, ACUTE TOXICITY AND HYPOGLYCEMIC ACTIVITIES ON TWO CULTIVARS OF LYCOPERSICON ESCULENTUM MILL.	Lycopersicon esculentum Mill. belongs to the family Solanaceae. It is known as the kha yan gyin in Myanmar. Two cultivars of Lycopersicon esculentum Mill., cv. local and cv. 909 (Taiwan) were collected from Moe Kaung village, Sintgaing Township, Mandalay Region. Morphological and histological studies on two cultivars of Lycopersicon esculentum Mill. were carried out, to get their correct identification. Determination of nutritional values of two cultivars such as water, carbohydrate, crude fiber, proteins and fat were also investigated. The acute toxicity study of ethanol extracts of two cultivars on albino mice were performed. The lethal effect was not observed even use of maximum does of 2500 mg/kg. The hypoglycemic effect of ethanol extracts from two cultivars on adrenaline induced hypoglycemic albino mice were tested. These two cultivars show more reduction of hypoglycemic activity than standard drug, glibenclamide. The property of reduction of blood glucose concentration of ethanol extract cv. local and cv. 909(Taiwan) and glibenclamide were compared. From the comparison, ethanol extract of cv. local can reduce hyperglycemia better than that of cv. 909(Taiwan).	2020
984	Khin Min Min Kyaw	ISOLATION OF SOIL BACTERIA FROM NGATHAICHAUNG TOWNSHIP AND THEIR ANTIMICROBIAL ACTIVITIES	Soil samples were collected from three different areas of Ngathaichaung Township, Ayeyawady Region. These samples were cultured on Glucose Peptone Agar medium, Flo Agar medium and Dextrose Casein Peptone Agar medium. A total of 15 bacterial colonies were isolated from these soil samples. 5 isolates were obtained from Glucose Peptone Agar medium, 7 isolates from Flo Agar medium and 3 isolates from Dextrose Casein Peptone Agar medium. Isolated bacteria were designated as KM. In the colony morphology, the size of isolated bacteria were medium, large and very large. The margin of colonies were entire, lobate and undulate. Cell morphology of isolated strains were studied by Gram staining, colony morphology and shape of cell strains were short rod, other strains were long rod chain and rod chain. Three strains were Gram positive and other strains were Gram negative. Moreover, antimicrobial activities of all isolated strains were carried out by agar well diffusion assay with seven test organisms. Among them, 6 isolated strains showed the antimicrobial activity. KM-13 showed the higher antibacterial activity (27.77 mm and 27.63 mm) against Escherichia coli and Bacillus pumilus. Especially this strain exhibited the highest antifungal activities (31.17 mm) on Malassezia furfur followed by (25.46 mm) on Candida albicans. And then, KM-11 also showed the antibacterial activity (21.40 mm) on Bacillus subtilis.	2020
985	Ni Ni Htun	MORPHOLOGICAL IDENTIFICATION AND PHYTOCHEMICAL INVESTIGATION OF CASSIA OCCIDENTALIS L. LEAVES AND ITS ANTIMICROBIAL ACTIVITY	Cassia occidentalis L., belonging to family Fabaceae, is a medicinal plant used as a traditional medicine for the treatment of various diseases. The present study was designed to evaluate the preliminary phytochemical constituents and antimicrobial activity of leaves of Cassia occidentalis L. The specimen were collected from Banmaw Township, Kachin State. The morphological characters of this plant have been studied in detail and identified by the available literatures. The dried leaf powder of Cassia occidentalis L. was subjected to phytochemical analysis in order to find out the presence of phytochemical constituents. It contained many chemical groups included alkaloids, glycoside, reducing sugar, saponin, steroid, terpenoids, carbohydrate, tannin, phenolic compound, flavonoid, starch, protein and amino acid. For antimicrobial activity, the leaf powder of Cassia occidentalis L. was extracted with seven different solvents. The extracts were used to carryout antimicrobial screening in vitro on six different types of microorganisms by agar well diffusion method. It was found that the ethyl acetate extract showed most significant antimicrobial activity on Pseudomonas aeruginosa. The phytochemical investigations and antimicrobial properties of leaves of Cassia occidentalis L. prove its importance as a valuable medicinal plant.	2020
986	Sandar Sann	MORPHOLOGICAL CHARACTERS AND PHYTOCHEMICAL INVESTIGATION OF CAPSICUM FRUTESCENS L.(LEAVES) AND ITS ANTIMICROBIAL ACTIVITY	A medicinal plant Capsicum frutescens L. was selected for the present study. Myanmar name Moe- myaw-ngayoke belongs to the family Solanaceae. The specimens were collected from Nampha quarter, Banmaw Township in Kachin State from January to September, 2018. The collected plants were identified by the literature references to confirm its identity. The present research was conducted to study the morphological characters, qualitative analysis and antimicrobial activity of the Capsicum frutescens L. In morphological study, inflorescences were axillary and terminal cymes and flowers were pentamerous and hypogynous. In qualitative analysis, alkaloids, glycosides, flavonoids, phenolic compounds, steroids, starch, protein, reducing sugar, ?-mino acids and carbohydrates were found to be present in the leaves of Capsicum frutescens L. In antimicrobial tests, the various solvent extracts of powdered leaves were tested on six microorganisms by using agar well diffusion methods at the CRDC. In this experiment, ethyl acetate extract of leaves showed the highest activity especially more sensitive against Bacillus subtilis, Staphylococcus aureus, Bacillus pumalis and Candida albicans. Therefore, the leaves of Capsicum frutescens L. may serve as a source of natural antimicrobial agents to be used in food and medicinal purposes.	2020
987	Tin Tin Maw	TAXONOMIC STUDY ON NINE SPECIES OF FAMILY FABACEAE IN KYAING TONG UNIVERSITY CAMPUS	The present study deals with the members of family Fabaceae growing in Kyaing Tong University Campus. All species are collected during January to December in 2018. Some Fabaceae from Kyaing Tong University Campus have been collected, identified and then morphological characteristic were studied. In this study, nine species belonging to eight genera of family Fabaceae were identified and systematically arranged with relevant photographs. Artificial key to the species, detail description of the individual species has also been described. In addition, their flowering period, Myanmar names and English names were also described. Comparable characteristic of the species were constructed according to their different characters.	2020
988	Thin Thin Aye	TAXONOMY AND POLLEN MORPHOLOGY OF NINE SPECIES IN FABACEAE	Taxonomy and pollen morphology of 9 species belonging to 7 genera of the family Fabaceae were studied. The specimens were collected from Magway Region during 2017- 2018. The collected species are two species of Acacia, Caesalpinia and one species of Aeschynomene, Butea, Clitoria, Mucuna, Vigna. Taxonomic descriptions, artificial key to the species was presented. According to the resulting data, perennial tree are Acacia, Butea; small tree is Caesalpinia sappan L.; shrubs is Aeschynomene americana L.; lianas is Caesalpinia bonduc (L.) Roxb and rest species are herbs. The types of leaves are compound. The trifoliolate leaves also occurred in Butea, Mucuna, Vigna and the remaining species are uni or bipinnate. The pollen grains were found as polyads and monads. Polyads was observed in Acacia and the other species were monads. The shape, size and sculpture are important criteria for the study of pollen morphology. There are two types of aperture and three types of exine ornamentation. Psilate pollens are observed in Acacia catechu (L.f) Willd., Clitoria ternatea L., and the other species are reticulate. The sizes of pollens are small, medium and large.The smallest pollen was found in Aeschynomene and largest pollen observed in Mucuna. Pollen of each species was presented in polar view and equatorial view.	2020
989	Khin Min Min Thwe	MORPHOLOGY, MICROSCOPICAL CHARACTERS, PHYTOCHEMICAL CONSTITUENTS AND ANTIMICROBIAL ACTIVITYOF TADEHAGI TRIQUETRUM (L.) OHASHI	Tadehagi triquetrum (L.) Ohashi is one of the medicinal plants under the family Fabaceae and it is well known as �laukthay� in Myanmar. This plant was collected from Myitkyina Township, Kachin State. Morphological and microscopical characters, phytochemical constituents and antimicrobial activities were investigated so as to certain their correct identification. The plant was perennial erect shrub, woody and reddish green angular branches with hairs on the angles. The corolla were papilionaceous and the fruits were jointed. In microscopical study, paracytic stomata were found on both surfaces. The vascular bundle was collateral type and endarch. The powdered leaves were tested for the phytochemical constituents and observed that alkaloids, flavonoids, phenolic compounds, steroids, saponins, tannins, glycosides and carbohydrates were present. The alkaloids, flavonoids, terpenoids, phenolic compounds, steroids, saponins, tannins, glycosides and carbohydrates were present in powdered root. In antimicrobial activity, the various solvent extracts of leaves and roots were tested by agar well diffusion method. The ethyl acetate extract of leaves and the methanol extract of roots showed the highest activity.	2020
990	Depar Myint	TAXONOMIC STUDY ON TWELVE SPECIES OF ROSACEAE FOUNDED IN WAINGMAW TOWNSHIP, KACHIN STATE	The research deals with taxonomic study on some member of rosaceous plants distributed in Waingmaw Township in Kachin State. The area lies between 25�22' and 25�44' North latitude and 97�12' and 97� 24' East longitude. The total area was 1883.17 sq km and the elevation ranges from 146 m to 1992 m above sea level. The member of rosaceous plants from Waingmaw Township were collected, preserved and identified from June 2017 to March 2019 in Department of Botany, University of Myitkyina. These species are Chaenomeles speciosa (Sweet) Nakai, Neillia sinensis Oliv., Prunus cerasoides D.Don., Prunus mume (Siebold) Siebold & Zucc., Prunus persica (L.) Batsch, Pyrus pyrifolia (Burm. f.) Nakai, Rosa chinensis Jacq, Rosa clinophylla Redout & Thory, Rubus corchorifolius L. f., Rubus ellipticus var. obcordatus Focke., Rubus reflexus Ker Gawl., Rubus rosifolius Sm. were included. Among them, Chaenomeles speciosa (Sweet) Nakai, Neillia sinensis Oliv, Pyrus pyrifolia (Burm. f.) Nakai, Rosa chinensis Jacq. and Rubus reflexus Ker Gawl. are not recorded in previous list of Myanmar. These species are very valuable for compilation of Flora of Myanmar.	2020

Research Publications

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