International Journal of Agriculture and Biology最新文献

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Co-Application of Farmyard Manure and Gypsum Improves Yield and Quality of Peanut (Arachis hypogaea) under Rainfed Conditions 旱作条件下农家肥与石膏配施可提高花生产量和品质
International Journal of Agriculture and Biology Pub Date : 2021-08-01 DOI: 10.17957/ijab/15.1828
Rizwan Latif
{"title":"Co-Application of Farmyard Manure and Gypsum Improves Yield and Quality of Peanut (Arachis hypogaea) under Rainfed Conditions","authors":"Rizwan Latif","doi":"10.17957/ijab/15.1828","DOIUrl":"https://doi.org/10.17957/ijab/15.1828","url":null,"abstract":"Peanut (Arachis hypogaea L.) is the common cash crop of the rainfed areas. Appropriate management practices are very important to get better yield of peanut in sandy loam soil. A field study was carried out during the growing seasons of 2018 and 2019 to evaluate the effect of poultry manure (PM) (37.1 t ha-1), farmyard manure (FYM) (49.4 t ha-1), gypsum (GYP) (2.5 t ha-1), liquid humic acid (HA) (49.4 L ha-1) and co-application of GYP (1.2 t ha-1) and FYM (24.7 t ha-1) on peanut yield, quality and soil physical properties. Application of FYM, PM, HA and GYP (alone or in combination) significantly improved peanut yield, quality and soil physical properties. The combined application of GYP and FYM proved most effective (P ≤ 0.05) in improving the peanut yield (no. of pods per plant, 100 seed weight etc), quality (crude protein and oil content) and soil physical properties (moisture percentage, infiltration rate and bulk density). The combined application of GYP and FYM increased the pods yield by 67 and 65% during 2018 and 2019, respectively than control. Crude proteins (21%) and oil contents (9.0%) were also substantially increased in the combined application. Moreover, the combined application of GYP and FYM significantly retained the soil moisture and reduced bulk density of soil. Present findings suggest that integrated use of FYM and GYP under field conditions could improve the crop productivity, crude protein, oil contents, moisture percentage, and reduce the bulk density of soil thus improving overall soil health. © 2021 Friends Science Publishers","PeriodicalId":13769,"journal":{"name":"International Journal of Agriculture and Biology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47137322","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
Phenotypic Antimicrobial Resistance Patterns in Salmonella typhimurium and Enteritidis Strains Isolated from Human, Food, and Environmental Samples of Broiler Meat Production Chain in Punjab 旁遮普省肉鸡肉生产链人类、食品和环境样本中鼠伤寒沙门氏菌和肠炎菌株的表型耐药性模式
International Journal of Agriculture and Biology Pub Date : 2021-08-01 DOI: 10.17957/ijab/15.1833
Shakera Sadiq
{"title":"Phenotypic Antimicrobial Resistance Patterns in Salmonella typhimurium and Enteritidis Strains Isolated from Human, Food, and Environmental Samples of Broiler Meat Production Chain in Punjab","authors":"Shakera Sadiq","doi":"10.17957/ijab/15.1833","DOIUrl":"https://doi.org/10.17957/ijab/15.1833","url":null,"abstract":"The emergence of antimicrobial resistance is a growing public health issue worldwide due to extensive use in agriculture, food, and veterinary medicine. The rate of antimicrobial resistance varies with different antibiotics and serotypes but Salmonella enterica serovar Enteritidis is one of the most widespread serotypes which is comparatively more susceptible to antimicrobial resistance followed by S. Typhimurium. A total of 71 Salmonella strains (S. Typhimurium, n=45; S. Enteritidis, n=26) isolated from humans, food and the environment were used in the study. Both isolates were confirmed through PCR by targeting their specific spy and sdf genes respectively. Kirby-Bauer disc diffusion method was used to determine antimicrobial susceptibility against 10 antibiotics used. An exponentially high level of resistance was found in S. Typhimurium strains. The highest level of resistance was found against amoxicillin (97.78%) followed by tetracycline (95.56%), gentamicin (93.33%), trimethoprim (86.67%), streptomycin (84.44%), nalidixic acid (77.78%), sulphafurazole (64.44%), ampicillin (62.22%), chloramphenicol (46.67%) and least resistance was found against ciprofloxacin (31.11%). Four penta MDR (ACSSuT) and two tetra MDR (ASSuT) resistance patterns were found S. Typhimurium strains. In S. Enteritidis strains, a high level of resistance was found against sulphonamides and streptomycin (92.31%) with the least resistance against ciprofloxacin (11.54%). Two penta MDR (ACSSuT) and six tetra MDR (ASSuT) resistance patterns were found. The presence of high antimicrobial resistance in zoonotic S. Typhimurium and Enteritidis in the broiler meat production chain is alarming. Immediate action and appropriate measures are required to control over the counter and irrational use of antibiotics both in poultry and humans. © 2021 Friends Science Publishers","PeriodicalId":13769,"journal":{"name":"International Journal of Agriculture and Biology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48136742","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
The Role of Root Tissue Membrane Proteins in Replanting Stress in Rehmannia glutinosa 地黄根组织膜蛋白在再植胁迫中的作用
International Journal of Agriculture and Biology Pub Date : 2021-08-01 DOI: 10.17957/ijab/15.1842
Fa-jie Feng
{"title":"The Role of Root Tissue Membrane Proteins in Replanting Stress in Rehmannia glutinosa","authors":"Fa-jie Feng","doi":"10.17957/ijab/15.1842","DOIUrl":"https://doi.org/10.17957/ijab/15.1842","url":null,"abstract":"The perennial herbaceous plant, Rehmannia glutinosa Libosch, is one of traditional Chinese medicines with a long history of cultivation and medicinal use. However, in production of R. glutinosa, replanting disease severely affected its yield and medicinal quality. Replanting disease is the special stress including biotic and abiotic factors. The membrane proteins system plays the important role in process of plants responding to stress factors. In this study, the differentially expressed root tissue membrane proteins between first planted and replanted R. glutinosa were identified through the isobaric tag for relative and absolute quantitation (iTRAQ). As a result, the membrane protein extraction kit could highly effectively extract the membrane proteins from R. glutinosa root tissue. A total of 698 differential membrane proteins between first planted and replanted R. glutinosa were obtained. Functional analysis revealed that the differential membrane proteins were involved in various metabolic pathways, including transport and breakdown, signal transduction, membrane trafficking and environmental response. Two important molecular events that occurred in cellular membrane of replanted R. glutinosa including the imbalance of ROS (Reactive Oxygen Species) metabolism and immune response were identified in this study. When replanted R. glutinosa plants faced the complex environment factors in rhizosphere, the proteins located in cellular membrane were often first activated to response to stress stimulus, resulted in the upregulated expression of a large number of LRR-RLKs (Leucine-rich repeat receptor-like kinases) receptor proteins. Meanwhile, the Ca2+ signal proteins and related receptor proteins transmitted and responded to the replanting stress, which induced severe oxidative stress response in the cell membrane of R. glutinosa, membrane peroxidation, intracellular signal disorder, and eventually produce replanting disease. Our findings provided the theoretical and data foundation for elucidating the key mechanisms associated with replanting stress. © 2021 Friends Science Publishers","PeriodicalId":13769,"journal":{"name":"International Journal of Agriculture and Biology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48431821","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
Fusarium oxysporum Silver Nanoparticles; their Characterization and Larvicidal Activity against Aedes Mosquitoes 尖孢镰刀菌纳米银;它们的特性及对伊蚊的杀幼虫活性
International Journal of Agriculture and Biology Pub Date : 2021-07-01 DOI: 10.17957/ijab/15.1815
N. S. Sumera
{"title":"Fusarium oxysporum Silver Nanoparticles; their Characterization and Larvicidal Activity against Aedes Mosquitoes","authors":"N. S. Sumera","doi":"10.17957/ijab/15.1815","DOIUrl":"https://doi.org/10.17957/ijab/15.1815","url":null,"abstract":"Fusarium oxysporum is an entomopathogenic fungus, and it has anti-biological activity against larvae of mosquitoes. Aedes mosquitoes are responsible for transmitting different diseases in humans. The use of chemical insecticides against mosquitoes is not eco-friendly option and results in the development of insecticidal resistance in mosquitoes. We investigated a biological control activity against these mosquitoes. In the present study, we cultured a local isolate of F. oxysporum from soil samples collected from Lahore, Pakistan and were initially identified based on its morphology and then confirmed through PCR. A product of 339 bp was amplified from the ITS (Internal Transcribed Spacer) gene of the fungus and sequenced afterwards. The sequence was in clad with Fusarium, which was isolated from a mosquito's body in the phylogenetic analysis. Local F. oxysporum was cultured and silver NPs (nanoparticles) were prepared. UV-Vis analysis depicted a broad peak at 420 nm wavelength and a narrow height at 310 nm. X-ray diffraction patterns of NPs indicated the existence of sharp diffraction peaks at 2θ angles of 32.19°, 45.55° and 64.27° that can be indexed to the (101), (200) and (220) facets of silver, which agree with the values reported for fcc lattice of silver NPs in International Center for Diffraction Data (ICDD). The SEM (scanning electron microscope) micrograph showed well-defined spherical NPs, which were smooth, isotropic, poly-dispersed, and ranging from 10 nm to 200 nm. The Zeta potential (ZP) measurements and poly-disparity index of 0.16 by DLS revealed a low variability of particle size and exhibited good physiochemical stability of biosynthesized AgNPs. In the Fourier-transform infrared spectroscopy (FTIR) spectrum of biosynthesized AgNPs, strong bands were analyzed at 3280 cm-1 and 1635 cm-1. F. oxysporum NPs enhanced the anti-biological activity by killing Aedes larvae 7 h earlier than F. oxysporum without NPs. Biological control using entomopathogenic fungi can be the best alternative of the chemical method to control the mosquito population. © 2021 Friends Science Publishers","PeriodicalId":13769,"journal":{"name":"International Journal of Agriculture and Biology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44735690","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
Effect of Boulardii Yeast Wall Polysaccharides on Intestinal Microflora in Jejunum, Cecum and Colon for Early-Weaned Lambs by 16S rRNA Sequence Analysis 16S rRNA序列分析鲍氏酵母壁多糖对早期断奶羔羊空肠、盲肠和结肠肠道菌群的影响
International Journal of Agriculture and Biology Pub Date : 2021-07-01 DOI: 10.17957/ijab/15.1820
Mengjian Liu
{"title":"Effect of Boulardii Yeast Wall Polysaccharides on Intestinal Microflora in Jejunum, Cecum and Colon for Early-Weaned Lambs by 16S rRNA Sequence Analysis","authors":"Mengjian Liu","doi":"10.17957/ijab/15.1820","DOIUrl":"https://doi.org/10.17957/ijab/15.1820","url":null,"abstract":"This study was conducted to investigate the effects of Boulardiiyeast wall polysaccharide (BRYP) on the intestinal micro-ecosystem of early-weaned lambs. A total of 60 early-weaned lambs (35-days-old, Kazak♂*Altay♀*Suffolk♂) were randomly assigned into two treatments: a control group with a basal diet, an experimental group with a basal diet and added 0.05% BRYP. The HiSeq high-throughput sequencing analysis of 16SrRNA was used to investigate the differences in intestinal microbial flora composition, diversity, relative abundance, principle coordination analysis, and the correlation between intestinal microbial flora composition and immune indices. After feeding for 40days, the addition of 0.5% BRYP in milk replacer significantly enhanced the species richness in the cecum and colon, but decreased the diversity of species in the colon (P <0.05); Compared with the control group, the relative abundance of Bacteroidetes in the experimental group was significantly enhanced, but the Proteobacteria was significantly decreased in all tested intestinal segments (P <0.05).In the jejunum, the relative abundance of Lactobacillus, Prevotella, and Fibrobacter of the experimental group were significantly enhanced than that of the control group, but the Ruminobacter was significantly decreased (P <0.05); In the cecum, the relative abundance of Bacteroides, Lactobacillus, Oscillospira and Bifidobacterium of the experimental group were significantly enhanced than that of the control group, but the Blautia were significantly decreased (P <0.05); In the colon, the relative abundance of Akkermansia, Bifidobacterium, Lactobacillus and Faecalibacteriumof the experimental group were significantly enhanced than that of the control group, but the Prevotella, Streptococcus, and Escherichia were significantly decreased (P <0.05). There were significant correlations between intestinal immune indices (IL-6, IL-10, TNF-α) and intestinal microbial composition in the colon (P <0.05). These results indicated that BRYP may contribute to the promotion of the proportion of helpful microbial populations and enhancing the balance of intestinal; Besides, BRYP may indirectly improve the intestinal immune function by changes of intestinal microflora composition, but suppress the inflammatory response in the bottom of intestinal mucosa of early-weaned lambs.© 2021 Friends Science Publishers","PeriodicalId":13769,"journal":{"name":"International Journal of Agriculture and Biology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45919935","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
De Novo Assembly and Characterization of the Seed Germination Transcriptomes of Sicyos angulatus 角镰孢种子萌发转录组的De Novo组装及其特性研究
International Journal of Agriculture and Biology Pub Date : 2021-07-01 DOI: 10.17957/ijab/15.1805
Helong Si
{"title":"De Novo Assembly and Characterization of the Seed Germination Transcriptomes of Sicyos angulatus","authors":"Helong Si","doi":"10.17957/ijab/15.1805","DOIUrl":"https://doi.org/10.17957/ijab/15.1805","url":null,"abstract":"Sicyos angulatus has become an important invasive plant exhibiting good ecological adaptability and strong competitive ability. However, studies on this plant at the molecular level are limited by a lack of sequencing data. The present study obtained transcriptome sequences and gene expression profiles using RNA-Seq during S. angulatus seed germination. In total, RNA-Seq generated 491,967,468 reads, which were de novo assembled and 127,874 unigenes with N50 length of 807 bp. About 34.9% of the unigenes (44,660) were annotated against the protein databases, and 35,176 coding sequences were determined. During S. angulatus seed germination, over 127,860 unigenes were expressed and 66,664 unigenes differentially expressed genes (DEGs), among which 8919 DEGs were similar in pairwise comparison. Gene Ontology (GO) analysis of DEGs revealed that genes related to post-embryonic development, meristem development, and photosynthesis were enriched. In addition, the GO term “plant hormone signal transduction pathway” was also enriched in the DEGs. Important changes in genes expression related to auxin and gibberellin signal transduction might possibly be associated with S. angulatus seed germination. The findings of this study provide a foundation for research on S. angulatus that may contribute to prevent further invasion of this plant, consequently protecting the environment. © 2021 Friends Science Publishers","PeriodicalId":13769,"journal":{"name":"International Journal of Agriculture and Biology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43882983","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
Gene Expression Evaluation of Multigenic Cotton (Gossypium hirsutum) against Cotton Leaf Curl Virus 多基因棉(Gossypium hirsutum)抗棉花卷叶病毒的基因表达评价
International Journal of Agriculture and Biology Pub Date : 2021-07-01 DOI: 10.17957/ijab/15.1821
M. Afzal
{"title":"Gene Expression Evaluation of Multigenic Cotton (Gossypium hirsutum) against Cotton Leaf Curl Virus","authors":"M. Afzal","doi":"10.17957/ijab/15.1821","DOIUrl":"https://doi.org/10.17957/ijab/15.1821","url":null,"abstract":"One of the most crucial threats limiting the sustainable production of cotton is cotton leaf curl disease (CLCuD). There is dire need to produce a resistant variety that can combat CLCuD. For this purpose, virus resistant transgenic cotton plants (MNH-786) with C4 gene construct at T3 generation were selected and sown. Young fresh leaves of multigenic variety of MNH-786 were collected to confirm the transformed construct. Infected whiteflies were used for spreading on transgenic cotton MNH-786 variety with C4 construct to check percentage of infection. Whiteflies were collected from infected cotton plants showing CLCuD and reared in lab to increase the population of whiteflies. After 15 days of feeding, infected leaves of transgenic plants were collected and total DNA of infected leaves of transgenic cotton plant with virus load was extracted. At maturity, data of morphological characteristic was taken from the transgenic cotton plants of MNH-786 and control plants. Resistant transgenic cotton plants showed < 0.5% disease index and recorded more plant height in field condition. Total number of bolls per plant was 20% more in tolerant plants and 40% more in resistant plants as compared to susceptible plants. Molecular analysis of transgenic plants showed clear evidence that expression of construct 4 virus resistant gene against begomoviruses in resistant and tolerant group of transgenic plants was more as compared to susceptible group and control. © 2021 Friends Science Publishers","PeriodicalId":13769,"journal":{"name":"International Journal of Agriculture and Biology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47258347","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
Correlation of the Gastrointestinal Parasitism with the Phytominerals in the Grazing Sheep (Ovis aries) 放牧绵羊胃肠道寄生虫病和植物矿物质的相关性
International Journal of Agriculture and Biology Pub Date : 2021-07-01 DOI: 10.17957/ijab/15.1809
H. Rizwan
{"title":"Correlation of the Gastrointestinal Parasitism with the Phytominerals in the Grazing Sheep (Ovis aries)","authors":"H. Rizwan","doi":"10.17957/ijab/15.1809","DOIUrl":"https://doi.org/10.17957/ijab/15.1809","url":null,"abstract":"Trace elements play an important role to boost the immunity and fight against parasitic infections. Concentration of trace elements like Copper (Cu), Cobalt (Co), Manganese (Mn) and Zinc (Zn) were determined in soil, forages and sera of sheep. An associative analysis was also made between the burden of Gastrointestinal (GI) parasites and concentrations of trace elements of sheep sera. For this, 384 faecal and blood samples of sheep, an appropriate number of forages and soil samples were collected. The faecal samples were subjected to determine the species and burden of GI parasites. The sera, plant and soil samples were subjected to pre-treatment (digestion) required for the determination of trace elements. The overall prevalence of GI parasites was 32.81% and the most prevalent species were Haemonchus (H.) contortus followed in order by Eimeria spp., Strongyloides spp., Trichostrongylus spp. and Fasciola spp. Variables like age, sex, breed and tehsils of Silakot district showed an insignificant association with GI parasitic burden. Trace elements concentration of forages showed a significant (P < 0.05) variation while trace elements concentration of soil showed an insignificant (P > 0.05) variation. In serum, Zn concentration showed significant (P < 0.05) results among all the tehsils of study district. Mean concentrations of Mn and Cu in serum were found inversely proportional to the mean egg count per gram of sheep faeces in tehsil Pasroor of the Sialkot district. Forages containing high concentrations of Mn and Cu can be used effectively against GI parasites. © 2021 Friends Science Publishers","PeriodicalId":13769,"journal":{"name":"International Journal of Agriculture and Biology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48068057","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
Development of Alginate-Montmorillonite-Starch with Encapsulated Trichoderma harzianum and Evaluation of Conidia Shelf Life 哈茨木霉包埋海藻酸蒙脱石淀粉的研制及对Conidia货架期的评价
International Journal of Agriculture and Biology Pub Date : 2021-07-01 DOI: 10.17957/ijab/15.1812
Fariz Adzmi
{"title":"Development of Alginate-Montmorillonite-Starch with Encapsulated Trichoderma harzianum and Evaluation of Conidia Shelf Life","authors":"Fariz Adzmi","doi":"10.17957/ijab/15.1812","DOIUrl":"https://doi.org/10.17957/ijab/15.1812","url":null,"abstract":"Biological control agents, such as Trichoderma harzianum, are widely used in sustainable agriculture. However, commercialisation and mass production of biocontrol products have remained a challenge, especially in viability and efficiency in field application. The encapsulation method has emerged as a sophisticated technique to develop the formulation of T. harzianum. Hence, encapsulation through extrusion was used to prepare T. harzianum beads. The physical characteristics comprising weight, diameter, and swelling ability of the beads were significantly improved when the starch percentage was increased. Alginate-montmorillonite-starch (10%) revealed the lowest shrinkage and the highest swelling ability. The interaction within the functional groups of alginate, montmorillonite, and starch was confirmed by the Fourier-transform infrared spectroscopic (FTIR) study. Furthermore, scanning electron microscopic analysis exposed compatible scattering of montmorillonite particles and starch granules over the alginate linkages. Meanwhile, the X-ray diffraction analysis confirmed the exfoliation between starch and montmorillonite. Storage of T. harzianum beads at 5°C was more suitable than storage at 28°C. At low temperature, the encapsulated T. harzianum beads maintained their viability at 6.59 ± 0.12 log CFU g−1 for an effective threshold value for up to seven months. The current findings indicated that the combination of alginate, montmorillonite, and starch is the best formulation of encapsulated T. harzianum with improved conidia shelf life. © 2021 Friends Science Publishers","PeriodicalId":13769,"journal":{"name":"International Journal of Agriculture and Biology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47893400","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
Strictosidine Synthase Coding Gene Expression towards Quinine Biosynthesis and Accumulation: Inconsistency in Cultured Cells and Fresh Tissues of Cinchona ledgeriana Quinine生物合成和积累的Strictosidine合成酶编码基因表达:在金鸡纳培养细胞和新鲜组织中的不一致性
International Journal of Agriculture and Biology Pub Date : 2021-07-01 DOI: 10.17957/IJAB/15.1817
D. Ratnadewi, M. H. Fendiyanto, R. Satrio, M. Miftahudin, A. N. Laily
{"title":"Strictosidine Synthase Coding Gene Expression towards Quinine Biosynthesis and Accumulation: Inconsistency in Cultured Cells and Fresh Tissues of Cinchona ledgeriana","authors":"D. Ratnadewi, M. H. Fendiyanto, R. Satrio, M. Miftahudin, A. N. Laily","doi":"10.17957/IJAB/15.1817","DOIUrl":"https://doi.org/10.17957/IJAB/15.1817","url":null,"abstract":"Strictosidine synthase, encoded by the gene STR, facilitates the regeneration of strictosidine, a critical intermediate for the synthesis of many plant alkaloids. The gene has, however, never been studied in Cinchona spp. The plants produce quinine alkaloid used for malaria medication, SARS-CoV-2 treatment and other industrial purposes. Cultured cells can produce the alkaloid but only at a much lower yield than the natural tree. This study describes STR expression and quinine content in various plant materials. Bioinformatic analyses were conducted on nine species of Rubiaceae to obtain reference sequences to design conservative primers for Cinchona ledgeriana STR (ClSTR). ClSTR expression was analyzed using qRT-PCR and quinine content was determined using HPLC. A complete coding sequence (CDS) of ClSTR was deposited in NCBI GenBank under the accession number MK422544.1. ClSTR was expressed in cultured cells, young and mature leaves, and stem bark. The elicited cells have higher expression than the control and they performed since the fourth week. However, the quinine content was greater in older cells. The gene expression in young leaves was superior, but quinine was most abundant in the stem bark. Every cell of C. ledgeriana, in culture or in the plant, expressed ClSTR and was capable of synthesizing the alkaloid quinine. The alkaloid from the leaves of the plant might be translocated and accumulated in the bark. No efflux of alkaloids from the confined cultured cells might contribute in triggering feedback inhibition in the biosynthetic pathway. This study revealed a critical obstacle in cell culture as a means of secondary metabolites production that needs further development of metabolic engineering. © 2021 Friends Science Publishers","PeriodicalId":13769,"journal":{"name":"International Journal of Agriculture and Biology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43817285","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
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