Bangladesh Journal of Botany最新文献_第2页

Optimization of cultural parameters for lipase production by indigenous stenotrophomonas sp. And pseudomonas aeruginosa isolated from lipid-rich environments 从富含脂质的环境中分离出的本地赤霉单胞菌和铜绿假单胞菌生产脂肪酶的培养参数优化

IF 0.3 4区生物学

Bangladesh Journal of Botany Pub Date : 2023-12-31 DOI: 10.3329/bjb.v52i4.70580

Lovely Aktar, M. Saha

{"title":"Optimization of cultural parameters for lipase production by indigenous stenotrophomonas sp. And pseudomonas aeruginosa isolated from lipid-rich environments","authors":"Lovely Aktar, M. Saha","doi":"10.3329/bjb.v52i4.70580","DOIUrl":"https://doi.org/10.3329/bjb.v52i4.70580","url":null,"abstract":"The present study aims to identify prospective lipase-producing bacteria and optimize different culture parameters to produce maximum lipase. A total of 37 lipase-positive bacteria were isolated from lipid-rich environments. Among them, strains S1N-2 and S10P-1 were found to have potential and were molecularly identified as Stenotrophomonas species ICMM10 and Pseudomonas aeruginosa BA7823, respectively. For maximum lipase production, the optimum pH was 7 and the temperature was 37ºC. Using these conditions, the isolates were grown on media with additional carbon and nitrogen sources along with different inoculum concentrations. The maximum amount of lipase produced by Stenotrophomonas sp. ICMM10 was 136.47 ± 1.63 U/ml, which is 5-fold higher than before. Pseudomonas aeruginosa BA7823 produced a maximum lipase of 96.33 ± 0.21 U/ml, which was about 9-fold higher than before. These results would provide useful information about lipase production by indigenous isolates, which may be employed as a potential bacterial lipase source of biotechnological interest. Bangladesh J. Bot. 52(4): 979-988, 2023 (December)","PeriodicalId":8703,"journal":{"name":"Bangladesh Journal of Botany","volume":"73 10","pages":""},"PeriodicalIF":0.3,"publicationDate":"2023-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139132296","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Axillary shoot proliferation and regeneration of red rose [pisiformis (christ.) D. Sosn. An under thread extinction species endemic to Turkey 红玫瑰[pisiformis (christ.) D. Sosn.土耳其特有的濒危物种

IF 0.3 4区生物学

Bangladesh Journal of Botany Pub Date : 2023-12-31 DOI: 10.3329/bjb.v52i4.70576

Onur Özel, Hatice Demiray, Volkan Eroğlu, Cihan Ecer

{"title":"Axillary shoot proliferation and regeneration of red rose [pisiformis (christ.) D. Sosn. An under thread extinction species endemic to Turkey","authors":"Onur Özel, Hatice Demiray, Volkan Eroğlu, Cihan Ecer","doi":"10.3329/bjb.v52i4.70576","DOIUrl":"https://doi.org/10.3329/bjb.v52i4.70576","url":null,"abstract":"In vitro propagation of red rose [Rosa pisiformis (Christ.) D. Sosn.] has great importance in rapid proliferation of species with medicinal features and in culture of healthy plants free from deseases. After a succesfully pre-sterilization procedure, experiments were maintained by two-phase: multiplication phase and rooting of microshoots phase. Micropropagation of Rose was improved, using its nodal segments under different combination of BAP (0, 1.0, 2.0, 0.6 mg/l), NAA (0, 0.1, 0.2, 0.01 mg/l) on Driver and Kuniyuki (DKW) and MS medium in multiplication phase and using distinct compositions of IBA (0, 1.0, 3.0, 5.0 mg/l) and DKW medium in rooting phase. The maximum number of shoots/per plant (22.6) with the highest number of leaves (222.6) were obtained in DKW medium supplemented with 0.6 mgl-1 BAP and 0.01 mg/l NAA. The leaf explants were also used to occur callus in MS with different combinations of BAP and NAA. Good callus formation was obtained with 1:2 ratio of BAP:NAA combination in MS medium. Furthermore, the highest root induction (100%) was achieved in DKW medium consisting of 1 mg/l IBA. The rooted plantlets were transferred to the field after acclimatized in greenfield conditions. The present investigation presents an in vitro protocol for R. pisiformis. Bangladesh J. Bot. 52(4): 949-958, 2023 (December)","PeriodicalId":8703,"journal":{"name":"Bangladesh Journal of Botany","volume":"111 36","pages":""},"PeriodicalIF":0.3,"publicationDate":"2023-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139133334","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Karyotype profile of holarrhena antidysenterica (Roxb. Ex fleming) wall holarrhena antidysenterica（Roxb.

IF 0.3 4区生物学

Bangladesh Journal of Botany Pub Date : 2023-12-31 DOI: 10.3329/bjb.v52i4.70609

C. Dash, Nowshin Anjum, Prasenjit Roy, Syeda Sharmeen Sultana

引用次数: 0

Evaluation of antibiotics and bioagents for the management of black rot disease of cabbage and their effect on extracellular polysaccharide secretion 评估抗生素和生物制剂对甘蓝黑腐病的防治作用及其对细胞外多糖分泌的影响

IF 0.3 4区生物学

Bangladesh Journal of Botany Pub Date : 2023-12-31 DOI: 10.3329/bjb.v52i4.70578

P. Sangwan, Rakesh Sangwan, Vinod Malik, Manjeet Singh

{"title":"Evaluation of antibiotics and bioagents for the management of black rot disease of cabbage and their effect on extracellular polysaccharide secretion","authors":"P. Sangwan, Rakesh Sangwan, Vinod Malik, Manjeet Singh","doi":"10.3329/bjb.v52i4.70578","DOIUrl":"https://doi.org/10.3329/bjb.v52i4.70578","url":null,"abstract":"Black rot disease caused by bacterium Xanthomonas campestris pv. campestris has been identified as major cause for low cabbage yields. The present study was conducted to evaluate the efficacy of various antibiotics and bioagents for controlling black rot disease and also their effect on extracellular polysaccharide secretion (EPS) of Xanthomonas campestris pv. campestris. Under in vitro conditions, bacterial proliferation and EPS production were examined on yeast peptone agar medium containing sucrose or trehalose with or without antibiotics. Number of Xanthomonas campestris pv. campestris on yeast peptone agar medium with Validamycin-A was less as compared to control. Extracellular polysaccharide secretion (EPS) was also inhibited on yeast peptone agar medium with antibiotic Validamycin-A. In vivo, disease intensity was recorded minimum in seed treatment + root dipping + foliar spray with Validamycin-A @ 500 µg/ml followed by seed treatment with Validamycin-A @ 500 µg/ml in comparison to control. Similarly, 45.61% higher cabbage yield was recorded in seed treatment + root dipping + foliar spray with Validamycin-A @ 500 as compared to untreated control. However, the antibiotic Validamycin-A which was found effective can be recommended to manage the disease. Bangladesh J. Bot. 52(4): 965-970, 2023 (December)","PeriodicalId":8703,"journal":{"name":"Bangladesh Journal of Botany","volume":"71 5","pages":""},"PeriodicalIF":0.3,"publicationDate":"2023-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139130501","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Potential of compound bacterial agent in the biocontrol of muskmelon pathogens 复合菌剂在麝香瓜病原体生物防治中的潜力

IF 0.3 4区生物学

Bangladesh Journal of Botany Pub Date : 2023-12-31 DOI: 10.3329/bjb.v52i4.70603

R. Fu, Hong Zhang, Tieqi Xia, Xue Yang, Dingwang, Wu-ling Chen

引用次数: 0

Effects of seedling dipping and foliar application of nano dap on growth, yield and economics of fine rice 秧苗浸种和叶面喷施纳米 Dap 对水稻生长、产量和经济效益的影响

IF 0.3 4区生物学

Bangladesh Journal of Botany Pub Date : 2023-12-31 DOI: 10.3329/bjb.v52i4.70589

Meenakshi Attri, Neetu Sharma, Swati Mehta, Joysamuel Mecarty

{"title":"Effects of seedling dipping and foliar application of nano dap on growth, yield and economics of fine rice","authors":"Meenakshi Attri, Neetu Sharma, Swati Mehta, Joysamuel Mecarty","doi":"10.3329/bjb.v52i4.70589","DOIUrl":"https://doi.org/10.3329/bjb.v52i4.70589","url":null,"abstract":"A field experiment was conducted to assess the effect of seedling dipping and foliar application of phosphorus on growth, yield and economics of fine rice. The experimental results revealed that 75% recommended nitrogen, phosphorus and 100% recommended potassium + seedling dipping with nano di-ammonium phosphate @ 5 ml/litre + foliar spray with nano di-ammonium phosphate @ 4 ml/litre application recorded significantly higher growth, yield and yield attributes, which was statistically at par with, 50% recommended nitrogen, phosphorus +100% recommended potassium + seedling treatment with nano di-ammonium phosphate @ 5 ml/litre+ 2 foliar spray with nano di-ammonium phosphate each @ 4 ml/litre and @ 2 ml/litre and 100% recommended nitrogen, phosphorus and potassium. However, 50% recommended nitrogen, phosphorus +100% recommended potassium + seedling treatment with nano di-ammonium phosphate @ 5 ml/litre+ 2 foliar spray with nano nano di-ammonium phosphate each @ 4 ml/litre recorded significantly highest agro physiological efficiency. However, in terms of economics 75% recommended nitrogen, phosphorus and 100% recommended potassium + seedling dipping with nano di-ammonium phosphate @ 5 ml/litre + foliar spray with nano nano di-ammonium phosphate @ 4 ml/litre recorded highest net returns and benefit cost ratio. Bangladesh J. Bot. 52(4): 1025-1031, 2023 (December)","PeriodicalId":8703,"journal":{"name":"Bangladesh Journal of Botany","volume":"87 19","pages":""},"PeriodicalIF":0.3,"publicationDate":"2023-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139132217","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Genotype and environment interactions of yield contributing characters of field mustard (Brassica rapa L.) 大田芥菜（Brassica rapa L.）产量贡献特征的基因型与环境交互作用

IF 0.3 4区生物学

Bangladesh Journal of Botany Pub Date : 2023-12-31 DOI: 10.3329/bjb.v52i4.70604

Susmita Mondal, F. T. Johora, Goutom Roy, Jamilur Rahman

{"title":"Genotype and environment interactions of yield contributing characters of field mustard (Brassica rapa L.)","authors":"Susmita Mondal, F. T. Johora, Goutom Roy, Jamilur Rahman","doi":"10.3329/bjb.v52i4.70604","DOIUrl":"https://doi.org/10.3329/bjb.v52i4.70604","url":null,"abstract":"Genotype-environment interaction is the norm of reciprocal action that determines the relationship between gene and environmental factors. Gene and environment interaction takes place when different environments affect the genotypes and vice versa. The investigation portrays the interaction between genes and environments of yield contributing characteristics of eleven genotypes of field mustard. Three seeding-time environments, viz., early, late, and very late of eleven mustard genotypes were laid out with three replications in a randomized complete block design. Among the three environments, which one was favorable and which was not was determined by their significant differences through a combined analysis of variance. The IPCA 1 (first interaction principal component axis) score of genotypes in the AMMI (additive main effects and multiplicative interaction analysis) of G×E interactions was estimated as an indication of the ability to respond to the environments and the performance with changing environments of the genotypes. Considering all the scores, Sonali Sharisha (SS-75), and BINA Sharisha-10 were found to be highly stable genotypes, while among the three environments, the environment-1 (early sowing) was found the best sowing time for raising and harvesting a good mustard crop. Bangladesh J. Bot. 52(4): 1055-1065, 2023 (December)","PeriodicalId":8703,"journal":{"name":"Bangladesh Journal of Botany","volume":"69 8","pages":""},"PeriodicalIF":0.3,"publicationDate":"2023-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139132401","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Molecular characterization and diversity analysis of promising tgms lines and high-yieding varieties In rice by using ssr markers 利用 ssr 标记对有潜力的 tgms 品系和高结实率水稻品种进行分子表征和多样性分析

IF 0.3 4区生物学

Bangladesh Journal of Botany Pub Date : 2023-12-31 DOI: 10.3329/bjb.v52i4.70610

V. Karpagam, R. Kalaiyarasi

引用次数: 0

Changes in internal structure and nutritional quality with different types of maize kernels during Grain filling period 谷粒灌浆期不同类型玉米籽粒内部结构和营养质量的变化

IF 0.3 4区生物学

Bangladesh Journal of Botany Pub Date : 2023-12-31 DOI: 10.3329/bjb.v52i4.70608

Qiang Guo, Juan Li, Jingjing Cui, Huadi She

引用次数: 0

Effects Of Organic Substance And Plant Growth Regulators On Yield Attributes And Quality Of Guava Cv. Lucknow 49 有机物质和植物生长调节剂对番石榴产量属性和质量的影响勒克瑙 49