Biotropika: Journal of Tropical Biology最新文献_第4页

Antibacterial Activity Screening Of Bacterial Isolates Associated With Seaweed Eucheuma cottonii From Coastal Area In Buleleng, Bali 巴厘布列楞沿海地区棉真草相关菌分离株抑菌活性筛选

Biotropika: Journal of Tropical Biology Pub Date : 2022-08-01 DOI: 10.21776/ub.biotropika.2022.010.02.07

Anak Agung Gede Indraningrat, Pande Putu Christine Putri Purnami, Ida Bagus Gede Darmayasa

引用次数: 0

Antibacterial Activity of Pluchea indica Leaf Extract was Increased After Being Fermented with Saccharomyces cerevisiae and Added with its Cell-Free Supernatant 葡萄干叶提取物经酿酒酵母发酵后加入其无细胞上清液后，其抑菌活性有所提高

Biotropika: Journal of Tropical Biology Pub Date : 2022-08-01 DOI: 10.21776/ub.biotropika.2022.010.02.04

R. Rismawati, Yoga Dwi Jatmiko, S. Widyarti

引用次数: 0

The Antibacterial Properties of Psidium guajava Leaf Extract as a Wound Healing Agent of Laboratory Animals: a Review 番石榴叶提取物对实验动物伤口愈合的抗菌性能研究进展

Biotropika: Journal of Tropical Biology Pub Date : 2022-08-01 DOI: 10.21776/ub.biotropika.2022.010.02.10

L. Purnamasari, Maria Victoria Carolino, Joseph F. dela Cruz

引用次数: 0

Inhibitory Test of Gentamicin Antibiotics Against Escherichia coli and Staphylococcus aureus Bacteria Using Disc Method 圆盘法庆大霉素类抗生素对大肠杆菌和金黄色葡萄球菌的抑制试验

Biotropika: Journal of Tropical Biology Pub Date : 2022-08-01 DOI: 10.21776/ub.biotropika.2022.010.02.06

Fajar Husen, S.Si., M.Si., Nuniek Ina Ratnaningtyas

引用次数: 0

Growth Response of Purple Corn (Zea mays var. Ceratina kulesh) to Endophytic Bacterial Biofertilizer Treatment 紫玉米对内生细菌生物肥处理的生长响应

Biotropika: Journal of Tropical Biology Pub Date : 2022-08-01 DOI: 10.21776/ub.biotropika.2022.010.02.02

Kiki Riska Novelia, R. Mastuti, Saptini Mukti Rahajeng

引用次数: 0

Morphological Characterization and Antioxidant Activity of Actinobacteria from Xylocarpus granatum Growing in Mangrove Habitat 红树林中生长的木芋放线菌形态特征及抗氧化活性研究

Biotropika: Journal of Tropical Biology Pub Date : 2022-03-30 DOI: 10.21776/ub.biotropika.2022.010.01.01

Marina Ratte, Irmanida Batubara, Y. Lestari

{"title":"Morphological Characterization and Antioxidant Activity of Actinobacteria from Xylocarpus granatum Growing in Mangrove Habitat","authors":"Marina Ratte, Irmanida Batubara, Y. Lestari","doi":"10.21776/ub.biotropika.2022.010.01.01","DOIUrl":"https://doi.org/10.21776/ub.biotropika.2022.010.01.01","url":null,"abstract":"Xylocarpus granatum produces various bioactive compounds with diverse biological activities, one of them as an antioxidant. Endophytic actinobacteria can also produce bioactive compounds. This study aimed to explore the existence of the endophytic actinobacteria of X. granatum fruit and determine its antioxidant activity. The research method was carried out by isolating the endophytic actinobacteria from the fruit using selective media Humic Acid (HV). Furthermore, characterizing the obtained isolates using four different media, namely YSA, ISP2, ISP3, and ISP4, measured antioxidant activity for actinobacterial supernatants and actinobacterial ethyl acetate extracts using the DPPH method. The results showed that from X. granatum, 15 isolates of endophytic actinobacteria were obtained from fruit, seeds, and leaves. Endophytic actinobacteria isolates from X. granatum showed different colors of aerial mycelium, substrate mycelium, and spore chain type. XGF11, XGF12, and XGF4 isolates produced high antioxidant activity of the supernatant; 57.30%, 49.77%, and 41.90% inhibition, respectively. The antioxidant capacity of XGF12 ethyl acetate extract was 501.60 μg AEAC/mg extract and 465.47 μg AEAC/mg extract for XGF11 ethyl acetate extract. Based on 16S rRNA gene analysis, isolates XGF12 and XGF11 showed similarities with Streptomyces xylanilyticus, and isolated XGF4 showed similarities with Brevibacterium sediminis.","PeriodicalId":9004,"journal":{"name":"Biotropika: Journal of Tropical Biology","volume":"30 6 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-03-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83001558","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 3

Anuran diversity and community structure in Lesti upriver across buffer zone habitat in Bromo Tengger Semeru National Park 布罗莫腾格里塞梅鲁国家公园雷斯蒂上游跨缓冲区生境的动物多样性与群落结构

Biotropika: Journal of Tropical Biology Pub Date : 2022-03-30 DOI: 10.21776/ub.biotropika.2022.010.01.10

M. Fathoni, L. Hakim, N. Kurniawan

引用次数: 0

Fire Hotspot and Particulate Matter (Pm2.5) Distribution Patterns In Tropical Rainforest Ecosystems Of Batanghari River Basin In July 2021 2021年7月巴丹哈里河流域热带雨林生态系统火灾热点与Pm2.5分布格局

Biotropika: Journal of Tropical Biology Pub Date : 2022-03-30 DOI: 10.21776/ub.biotropika.2022.010.01.05

Andrio A Wibowo, A. Basukriadi, Erwin Nurdin

引用次数: 0

Isolation of Entomopathogenic Lysinibacillus sphaericus from Sewage at Some Housing Complex in Mataram City and Evaluation of Its Toxicity Against Aedes aegypti Larvae in Laboratory 马塔兰市某小区污水中昆虫致病性球形赖希杆菌的分离及对埃及伊蚊幼虫的室内毒性评价

Biotropika: Journal of Tropical Biology Pub Date : 2022-03-30 DOI: 10.21776/ub.biotropika.2022.010.01.07

Novia Devi Kusuma Dewi, E. Hidayati, Sarkono Sarkono, Eka Sunarwidhi Prasedya, Bambang Fajar Suryadi

{"title":"Isolation of Entomopathogenic Lysinibacillus sphaericus from Sewage at Some Housing Complex in Mataram City and Evaluation of Its Toxicity Against Aedes aegypti Larvae in Laboratory","authors":"Novia Devi Kusuma Dewi, E. Hidayati, Sarkono Sarkono, Eka Sunarwidhi Prasedya, Bambang Fajar Suryadi","doi":"10.21776/ub.biotropika.2022.010.01.07","DOIUrl":"https://doi.org/10.21776/ub.biotropika.2022.010.01.07","url":null,"abstract":"The aims of this study were to isolate Lysinibacillus sphaericus from sewage at some housing complex in Mataram city and evaluate its toxicity against third Aedes aegypti larvae. The bacteria collected from mud taken from diluted sewage and objected to heat shock procedure at 80oC for 30 minutes. The microbiological culture was done using a Nutrient Agar solid medium and incubated at 30oC for 72 hours. Bacterial characterization was done based on bacterial colony morphology, cell morphology, cell physiology, and cell biochemistry characteristics. Toxicity test on 3rd Aedes aegypti larvae was done for 24, 48, and 72 hours applying Nutrient Broth medium with various dilution. From this study total of 11 isolates of Lysinibacillus sphaericus were isolated, only three isolates showed a high killing rate against Ae. aegypti in 24-hour observation. They were isolate Bs9-2-3 (LC50 24-hour value was 1.75 x 10 cell/mL), isolate Bs9-1-5 (LC50 24-hour value was 6.23 x 10 cell/mL) and isolate Bs2-1-2 (LC50 24-hour value was 7.17 x 10 cell/mL). These local isolates of L. sphaericus had good potential to be developed for bacterial-based biopesticide/biolarvicide for battling Aedes mosquito larvae in the near future.","PeriodicalId":9004,"journal":{"name":"Biotropika: Journal of Tropical Biology","volume":"8 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-03-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84244698","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

INSERTION OF COLD SHOCK GENE FROM ESCHERICHIA COLI IN WHEAT PLANTS TO PRODUCE DROUGHT TOLERANT PROPERTIES 从大肠杆菌中提取冷休克基因插入小麦植株以产生耐旱性状

Biotropika: Journal of Tropical Biology Pub Date : 2022-03-30 DOI: 10.21776/ub.biotropika.2022.010.01.03

Takashi Reymond Rimpan, Naomi Dwany, Geraldy John Meyners, Yohana Delvia Ayustin, Wahyu Irawati

{"title":"INSERTION OF COLD SHOCK GENE FROM ESCHERICHIA COLI IN WHEAT PLANTS TO PRODUCE DROUGHT TOLERANT PROPERTIES","authors":"Takashi Reymond Rimpan, Naomi Dwany, Geraldy John Meyners, Yohana Delvia Ayustin, Wahyu Irawati","doi":"10.21776/ub.biotropika.2022.010.01.03","DOIUrl":"https://doi.org/10.21776/ub.biotropika.2022.010.01.03","url":null,"abstract":"Drought is a threat that affects plant growth and development. Wheat crops are very sensitive to heat and drought stress during flowering and grain development, which negatively affects grain yield and quality. Wheat with drought tolerant properties is a genetically modified plant obtained by inserting a cold shock protein gene from Escherichia coli so that it can increase the ability of wheat to adapt to drought. This literature review aims to provide information about the role of cold shock protein gene insertion from Escherichia coli in wheat plants to produce drought tolerant traits. The results of the literature review showed that the CspA gene from Escherichia coli inserted into DNA could increase gene expression by changing the nucleotides in the DNA sequence to increase G+C. Gene insertion produces recombinant DNA with specific nucleotide changes. Nucleotide changes were carried out to increase the overall G+C amino acid content without changing the existing CspA and CspB protein sequences. These changes played an important role in helping wheat adapt to drought. The leaves on the transgenic wheat showed a decrease in the rate of water loss because the stomata in these plants closed faster than in the ordinary wheat so that the transgenic wheat became more drought tolerant.","PeriodicalId":9004,"journal":{"name":"Biotropika: Journal of Tropical Biology","volume":"244 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-03-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74967297","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0