Bioscience Journal最新文献_第6页

Antimicrobial efficacy of Lactobacillus plantarum strain against the B. cereus, B. subtilis, S. aureus and E.coli strains 植物乳杆菌菌株对蜡样芽孢杆菌、枯草芽孢杆菌、金黄色葡萄球菌和大肠杆菌菌株的抗菌效果

IF 0.5 4区农林科学

Bioscience Journal Pub Date : 2023-03-31 DOI: 10.14393/bj-v39n0a2023-67616

S. Akhtar, Syed Kashif Nawaz

{"title":"Antimicrobial efficacy of Lactobacillus plantarum strain against the B. cereus, B. subtilis, S. aureus and E.coli strains","authors":"S. Akhtar, Syed Kashif Nawaz","doi":"10.14393/bj-v39n0a2023-67616","DOIUrl":"https://doi.org/10.14393/bj-v39n0a2023-67616","url":null,"abstract":"The current study aimed to detect the antimicrobial effect of cell free supernatant (CFS) of Lactobacillus plantarum strain against Gram +ve and Gram –ve bacterial strains. The strain of Lactobacillus plantarum was isolated using selective media MRS agar. The strain was characterized on the basis of the gram staining, colony morphology, the biochemical tests and the DNA sequencing based method of 16S ribotyping. A total of four test strains (The three already isolated and reported strains (E.coli, S. aureus and B. subtilis) and the one recently identified novel strain (B. cereus) were used for the analysis of antagonistic activity of bacteriocin produced by L. plantarum strain. The CFS of L. plantarum showed zone of inhibition against all the test strains (Gram +ve and Gram –ve bacteria). The conditions favoring the growth of bacteria were associated with the antimicrobial efficacy of CFS. Bacteriocin activity of CFS remained effective after exposure to temperature stress. Wide range of antagonistic potential of CFS of L. plantarum provides an alternative for antibiotics in pharmaceutical industry. Heat resistant feature of bacteriocin suggests its application in food industry.","PeriodicalId":8951,"journal":{"name":"Bioscience Journal","volume":" ","pages":""},"PeriodicalIF":0.5,"publicationDate":"2023-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43383650","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Morphology of the brain base arteries of the giant anteater (Myrmecophaga tridactyla) 巨型食蚁兽(食蚁兽)脑基底动脉的形态学

IF 0.5 4区农林科学

Bioscience Journal Pub Date : 2023-03-13 DOI: 10.14393/bj-v39n0a2023-62743

Kleber Mirallia de Oliveira, Yohana Heloise Mirallia, Daniel Barbosa da Silva, Paulo César Moreira, G. Qualhato, Augusto César Ribeiro Figueiredo, N. N. Guimarães, J. R. Cardoso

{"title":"Morphology of the brain base arteries of the giant anteater (Myrmecophaga tridactyla)","authors":"Kleber Mirallia de Oliveira, Yohana Heloise Mirallia, Daniel Barbosa da Silva, Paulo César Moreira, G. Qualhato, Augusto César Ribeiro Figueiredo, N. N. Guimarães, J. R. Cardoso","doi":"10.14393/bj-v39n0a2023-62743","DOIUrl":"https://doi.org/10.14393/bj-v39n0a2023-62743","url":null,"abstract":"This study aimed to describe the brain base arteries of the Myrmecophaga tridactyla using ten cadavers of adults from this species, including five male and five female specimens. The arterial vascular bed was perfused via the thoracic aorta with a dyed natural latex solution, and the animals were fixed and preserved with a 10% formaldehyde buffered solution. The encephala were removed, and their vessels dissected. Basilar artery formation occurred by anastomosis of the thick ventral spinal artery with vertebral arteries. The basilar artery formed two arterial islands and gave bulbar and pontine branches, and cranial, middle, and caudal cerebellar arteries and ended by forking into its terminal branches, the caudal communicating arteries. The blood supply of the encephalon derived solely from the vertebrobasilar system, and the arterial circle of the brain was closed caudally and rostrally. The absence of participation of internal carotid arteries in encephalon irrigation, the island formations by the basilar artery, and the fusiform shape of the arterial circle of the brain are peculiar characteristics of the vascular anatomy of the brain base of M. tridactyla.","PeriodicalId":8951,"journal":{"name":"Bioscience Journal","volume":" ","pages":""},"PeriodicalIF":0.5,"publicationDate":"2023-03-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42693204","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

What is the optimal fertigation start time and frequency in lettuce seedlings? 莴苣幼苗的最佳施肥开始时间和频率是什么?

IF 0.5 4区农林科学

Bioscience Journal Pub Date : 2023-03-10 DOI: 10.14393/bj-v39n0a2023-59702

Onésio Francisco da Silva Neto, É. A. Moreira, Valdeci Orioli Júnior, R. Castoldi, J. Torres, H. Charlo

{"title":"What is the optimal fertigation start time and frequency in lettuce seedlings?","authors":"Onésio Francisco da Silva Neto, É. A. Moreira, Valdeci Orioli Júnior, R. Castoldi, J. Torres, H. Charlo","doi":"10.14393/bj-v39n0a2023-59702","DOIUrl":"https://doi.org/10.14393/bj-v39n0a2023-59702","url":null,"abstract":"Although lettuce is one of the most important vegetable crops cultivated in Brazil, producers conduct seedling production empirically, as there are no published reports on the optimal start time and management strategy for seedling fertigation. The present aimed to assess the influence of fertigation management on the growth, physiological aspects and nutritional status of lettuce seedlings and to determine the optimal fertigation start time and frequency. Two experiments were conducted, each with a randomized block design and six repetitions. The first consisted of six treatments, namely six fertigation start times at 0, 3, 6, 9, 12, and 15 d after emergence (DAE), and the second consisted of five treatments, representing different application frequencies at 3, 4, 5, 6, and 7 d intervals. The assessment of nutrient accumulation levels and biometric and physiological characteristics of the seedlings were performed after transplanting. Fertigation start times significantly affected 14 of the 18 variables assessed, particularly the number of leaves, shoot dry weight, leaf area, initial chlorophyll fluorescence, and P, K, Ca, Mg, and S accumulation. The best results for ten variables were obtained when fertigation began at emergence, with values 17.77 - 35.63% higher than those at fertigation onset at 15 DAE. Application frequency only influenced chlorophyll content and N, P, K, and S accumulation, with optimal results obtained at 3 - 6 d intervals. Beginning fertigation at plant emergence favors dry weight production, nutrition and photosynthesis and shortens the production time of lettuce seedlings. The optimal start time for lettuce seedling fertigation is at emergence, with application performed every 6 d.","PeriodicalId":8951,"journal":{"name":"Bioscience Journal","volume":" ","pages":""},"PeriodicalIF":0.5,"publicationDate":"2023-03-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43280683","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Antimicrobial activity of comfort related properties of silk treated with herbal extracts in making of reusable masks 用草药提取物处理的丝绸在可重复使用的口罩中与舒适相关的抗菌活性

IF 0.5 4区农林科学

Bioscience Journal Pub Date : 2023-03-10 DOI: 10.14393/bj-v39n0a2023-65193

Shama Sadaf, N. Munir, A. Saeed, Komal Hassan, Zeeshan Ahmad

引用次数: 0

Effectiveness of ultrasonic activation associated to glycolic acid on smear layer removal, dentin structure and bond strength to root dentin 乙醇酸对牙本质结构、牙本质与牙根结合强度的影响

IF 0.5 4区农林科学

Bioscience Journal Pub Date : 2023-03-10 DOI: 10.14393/bj-v39n0a2023-65616

M. Souza, J. Santos, Luanda Tissiani, Uillian Rauch Magalhães, K. Bischoff, Rafaela Ricci, Laura Teixeira Hoffmann, Paula Cristine Ghiggi, J. D. de Carli, J. Bervian, E. G. Mota, J. Figueiredo, H. S. Palhano

{"title":"Effectiveness of ultrasonic activation associated to glycolic acid on smear layer removal, dentin structure and bond strength to root dentin","authors":"M. Souza, J. Santos, Luanda Tissiani, Uillian Rauch Magalhães, K. Bischoff, Rafaela Ricci, Laura Teixeira Hoffmann, Paula Cristine Ghiggi, J. D. de Carli, J. Bervian, E. G. Mota, J. Figueiredo, H. S. Palhano","doi":"10.14393/bj-v39n0a2023-65616","DOIUrl":"https://doi.org/10.14393/bj-v39n0a2023-65616","url":null,"abstract":"This study evaluated the effects of ultrasonic activation (US) associated to glycolic acid (GA) on smear layer, dentin structure and bond strength (BS) of filling/restorative material to root dentin. The roots were used for antimicrobial activity, dentin structure and BS evaluation, being distributed into seven groups, according to irrigation protocols: G1:DW+US; G2:17% EDTA; G3:QMix; G4:17% GA; G5:17% EDTA+US; G6:QMix+US; G7:17% GA+US. Scanning electronic microscopy, transmission electronic microscopy and push-out were performed, with specific statistical analysis for each evaluation. The highest smear layer removal occured in Groups 6 and 7 (p<0.05), and the largest collagen dispersion in Group 7, being similar to Group 2 and 5 (p>0.05). The highest BS of filling and restorative material occurred in Groups 6 and 7, and Groups 5, 6 and 7, respectively, being similars between them (p>0.05). The use of GA+US promoted effective smear layer removal and dentin structure preservation, improving the BS of filling/restorative material to root dentin.","PeriodicalId":8951,"journal":{"name":"Bioscience Journal","volume":" ","pages":""},"PeriodicalIF":0.5,"publicationDate":"2023-03-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45197676","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Artificial pollination and use of growth regulators in atemoya ‘Gefner’ fruits 人工授粉及生长调节剂在阿氏果实中的应用

IF 0.5 4区农林科学

Bioscience Journal Pub Date : 2023-03-10 DOI: 10.14393/bj-v39n0a2023-65135

P. C. Chagas, J. Crane, E. Chagas, W. Vendrame, B. N. Costa, A. R. Neto, Elias Ariel de Moura

引用次数: 0

Nutritional efficiency in sunflower cultivars under dosages of potassium in semiarid region 半干旱地区向日葵品种在施钾条件下的营养效率

IF 0.5 4区农林科学

Bioscience Journal Pub Date : 2023-03-10 DOI: 10.14393/bj-v39n0a2023-54188

G. L. Santos, A. P. D. Santos, M. G. D. Santos, H. Lins, A. R. E. D. Souza, F. D. L. Tartaglia, Lindomar Maria da Silveira, A. P. B. Júnior

{"title":"Nutritional efficiency in sunflower cultivars under dosages of potassium in semiarid region","authors":"G. L. Santos, A. P. D. Santos, M. G. D. Santos, H. Lins, A. R. E. D. Souza, F. D. L. Tartaglia, Lindomar Maria da Silveira, A. P. B. Júnior","doi":"10.14393/bj-v39n0a2023-54188","DOIUrl":"https://doi.org/10.14393/bj-v39n0a2023-54188","url":null,"abstract":"Potassium (K) participates in critical processes in sunflower cultivation, such as osmotic regulation and translocation of photosynthesis. However, the absorption or accumulation of this nutrient occurs differently owing to edaphoclimatic factors or between cultivars. The objective of this study was to evaluate the nutritional efficiency of sunflower cultivars as a function of different dosage K dosages in a semiarid region. To this end, two experiments were conducted in 2016 and 2017. The treatments consisted of five dosages of K at 0, 30, 60, 90, and 120 kg ha-1 K2O and four sunflower cultivars, Aguará 6, Altis 99, Multissol, and BRS 122. The experimental design was a randomized block with four replications and subdivided plots. The characteristics evaluated were agronomic efficiency, physiological efficiency, recovery efficiency, utilization efficiency, and accumulation of total K in the plant. Sunflower cultivars responded to K dosages in the two crops, with variations in efficiency parameters. Crop 2 showed better nutritional efficiency compared to crop 1. Aguará 6 showed greater nutritional efficiency than the other two crops. The use of dosages between 75 and 91 kg ha-1 of K2O provided better efficiency in K usage for the cultivars.","PeriodicalId":8951,"journal":{"name":"Bioscience Journal","volume":" ","pages":""},"PeriodicalIF":0.5,"publicationDate":"2023-03-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47257205","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The probable radioprotective role of Acacia nilotica L. against biochemical and cytogenetic disorders induced in gamma irradiated male rats 刺槐对γ辐照雄性大鼠生化和细胞遗传学紊乱的防护作用

IF 0.5 4区农林科学

Bioscience Journal Pub Date : 2023-03-10 DOI: 10.14393/bj-v39n0a2023-65513

S. Tawfik, W. A. El khouly, S. Montaser, Manal R. Mohammed

{"title":"The probable radioprotective role of Acacia nilotica L. against biochemical and cytogenetic disorders induced in gamma irradiated male rats","authors":"S. Tawfik, W. A. El khouly, S. Montaser, Manal R. Mohammed","doi":"10.14393/bj-v39n0a2023-65513","DOIUrl":"https://doi.org/10.14393/bj-v39n0a2023-65513","url":null,"abstract":"Gum Arabic (Acacia nilotica L.) is a respected plant that has many nutrients and curative practices. It hinders, improves, or manages many disorders. The radio-protective activity of Acacia nilotica was investigated against γ-rays-induced testicle damage in rats. Twenty-four rats were correspondingly distributed into 4 groups; control, Acacia nilotica (15mg/kg, daily for 30 days), γ-irradiated (5Gy γ-rays, single dose) and Acacia nilotica plus γ-rays treated groups. The plasma testosterone and total antioxidant status (TAS) were estimated. Lipid peroxidation; malondialdehyde (MDA), reduced glutathione (GSH), malondialdehyde (MDA), superoxide dismutase (SOD), also glutathione peroxidase (GPx), catalase (CAT), tumor necrosis factor-α (TNF-α) with interleukin-1β (IL-1β), were determined in the testicle tissues. A testis weight, sperm count and motility, peripheral-blood and bone-marrow micronuclei (PMN and BMN), and frequency of chromosomal aberrations (CAs) were scored. A significant decline in the levels of plasma testosterone with TAS observed in the γ-irradiated rats. The results also showed significantly increased levels of testicle MDA, inflammatory markers, PMN, BMN and CAs frequencies and decrease in testes weight, sperm count and motility and levels of testicle antioxidants markers in gamma irradiated group. All these biochemical and fertility indices results were significantly enhanced in the Acacia nilotica plus γ-rays treated groups. However, the possible alleviate activity of Acacia nilotica on γ-rays-induced testicle injury in rats has not previously conversed, and this is the topic of this study.","PeriodicalId":8951,"journal":{"name":"Bioscience Journal","volume":" ","pages":""},"PeriodicalIF":0.5,"publicationDate":"2023-03-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44563567","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Community structure of endophytic fungi in roots and leaves of Fagopyrum mill and Avena sativa in a Chinese northern cold region 北方寒冷地区金合欢和燕麦根叶内生真菌的群落结构

IF 0.5 4区农林科学

Bioscience Journal Pub Date : 2023-03-10 DOI: 10.14393/bj-v39n0a2023-65820

Yamei Gao, Zhiwen Li, Yiqiang Han

{"title":"Community structure of endophytic fungi in roots and leaves of Fagopyrum mill and Avena sativa in a Chinese northern cold region","authors":"Yamei Gao, Zhiwen Li, Yiqiang Han","doi":"10.14393/bj-v39n0a2023-65820","DOIUrl":"https://doi.org/10.14393/bj-v39n0a2023-65820","url":null,"abstract":"In order to explore the endophytic fungi of Fagopyrum Mill and Avena sativa, Illumina Miseq high-throughput sequencing was used to analyze the community structure and diversity of endophytic fungi in leaves and roots of buckwheat and oat at the mature stage. The results of community structure showed that there were 205 operational taxonomic units (OTUs) in buckwheat roots and 181 OTUs in buckwheat leaves based on 97% sequence similarity level. There were 152 OTUs and 127 OTUs in the root and the leaf of oat, respectively. At the phylum level, Ascomycota and Basidiomycota were the dominant endophytic fungi in buckwheat roots and leaves, while Ascomycota was the dominant endophytic fungus in oat roots and leaves. Alpha diversity analysis showed that the Ace index, Chao index and Shannon index of buckwheat roots were higher than that of buckwheat leaves, and the three indices of oat roots were also higher than that of oat leaves, indicating that the richness and diversity of endophytic fungi community in roots were higher than that in leaves. Biomarkers were found by significant difference analysis in buckwheat and oat. The endophytic functional groups of buckwheat and oat were mainly distributed in Pathotroph and Saprotroph. The results of this study laid a foundation for fully exploiting the dominant endophytic fungal resources of buckwheat and oat and further developing microbial fertilizers.","PeriodicalId":8951,"journal":{"name":"Bioscience Journal","volume":" ","pages":""},"PeriodicalIF":0.5,"publicationDate":"2023-03-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44866259","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Exposure to the herbicide atrazine induces oxidative imbalance, morphological damage and decreased survival in juvenile fish 除草剂阿特拉津会引起幼鱼氧化失衡、形态损伤和存活率降低

IF 0.5 4区农林科学

Bioscience Journal Pub Date : 2023-03-10 DOI: 10.14393/bj-v39n0a2023-65784

S. B. Silva, K. P. Gregório, R. M. Freitas, A. L. Destro, A. L. Salaro, J. Zuanon, R. V. Gonçalves, M. B. Freitas

{"title":"Exposure to the herbicide atrazine induces oxidative imbalance, morphological damage and decreased survival in juvenile fish","authors":"S. B. Silva, K. P. Gregório, R. M. Freitas, A. L. Destro, A. L. Salaro, J. Zuanon, R. V. Gonçalves, M. B. Freitas","doi":"10.14393/bj-v39n0a2023-65784","DOIUrl":"https://doi.org/10.14393/bj-v39n0a2023-65784","url":null,"abstract":"Synthetic herbicides have been intensively used in weed control, although often involved in environmental contamination, critically affecting non-target species. However, never was investigated the effect of commercial formulation using atrazine on developing juvenile fish exposed for 35 days. Juveniles (Astyanax altiparanae) (n = 600) were assigned to the following ATZ-exposed groups: 0 (CTR-control), 0.56 (ATZ0.56), 1.00 (ATZ1.00), 1.66 (ATZ1.66) and 11.66 (ATZ11.66) μg/L. We found a 36.6% decrease in juvenile survival rate in the ATZ11.66 group compared to control and other groups. Juveniles from ATZ11.66 also showed hyperglycemia and increased cortisol levels. Increased the imbalance oxidative with an increase in malondialdehyde (MDA) and Carbonylated proteins levels markers in muscle, gills, and liver. We also found increased activity of the antioxidant enzymes superoxide dismutase (SOD) in gills and SOD and catalase (CAT) in muscles from ATZ11.66 fish, and increased glutathione S-transferase (GST) activities in the liver from all exposed groups compared to control. The morphological consequences of this were loss of secondary lamella integrity, increased mucus-secreting cells, hyperplasia, and lamellar fusion, as well as increased aneurysms percentage. The liver showed vascular congestion associated with endothelial hyperplasia, steatosis, and a decrease in the nuclei percentage. Our results showed that exposure to a commercial formulation of ATZ at 11.66 μg/L can be causing an imbalance in the oxidative markers and morphological damages and decreased survival in a juvenile Neotropical species of great ecological relevance and commercial interest.","PeriodicalId":8951,"journal":{"name":"Bioscience Journal","volume":" ","pages":""},"PeriodicalIF":0.5,"publicationDate":"2023-03-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46432295","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0