Showing 36 results for Shu
Volume 0, Issue 0 (ARTICLES IN PRESS 2024)
Abstract
Crown rot, caused by Colletotrichum siamense, is a devastating hemibiotrophic fungal disease that poses a significant threat to the strawberry industry. Salicylic acid (SA) is known to play a critical role in plant defense responses to biotic stress. However, its contribution to mitigating strawberry crown rot remains unclear due to the microbial isolate-specific sensitivity and cultivar/tissue-specific responses in strawberries. In this study, we aimed to investigate how exogenous supply of SA influenced crown rot in strawberry. Exogenous SA application significantly reduced C. siamense infection in strawberry crowns, evidenced by the lesion size and pathological analysis. Transcriptomic data showed that for each sample of SA pretreatment and mock, owing to nearly 50 million reads, the ratio of Q20 ranged from 98% to 99%, and 91.63%-94.29% of the reads mapped to the reference genome. The SA pretreatment up-regulated genes encoding MLO-like protein 2, receptor-like kinase, peroxidase, and caffeic acid 3-O-methyltransferase involved in lignin biosynthesis. The SA pretreatment also down-regulated chalcone isomerase, naringenin 3-dioxygenase, bifunctional dihydroflavonol 4-reductase, anthocyanidin synthase, and anthocyanidin reductase expressions involved in flavonoid biosynthesis during C. siamense infection. Consistent with gene expression changes, the SA pretreatment remarkably enhanced peroxidase activity and lignin content and decreased flavonoid content and chalcone isomerase activity after C. siamense inoculation. The results suggest that exogenous SA enhanced strawberry resistance to crown rot caused by C. siamense by up-regulating defense-related genes and lignin biosynthesis.
Volume 0, Issue 0 (9-2025)
Abstract
Based on a comprehensive review of existing literature and examining the specimens, including 11 types that were housed in the Coleoptera Section of the Zoological Survey of India, Kolkata, 154 species of tortoise beetles (Coleoptera: Chrysomelidae: Cassidinae) from India are identified. This represents approximately 5.4% of the species diversity of the known tortoise beetles. Photographs of the examined specimens (including type specimens) are also provided. The details of the distribution of all the species across Indian states (including districts and micro-locations) and biogeographic zones are presented. Studying the distribution data of the species reveals that the Western Ghats harbours the highest number of tortoise beetle species (84), followed by the Northeast (58), Deccan Peninsula (51), Himalayas (49), Gangetic plains (34), Islands (12), and Semi-Arid regions (12).
Volume 2, Issue 4 (12-2016)
Abstract
During a study on fauna of the frit flies (Diptera: Chloropidae) in Khorasan Razavi province (Iran) in 2014 and 2015, nine species of six genera were collected and identified. Platycephala rugosa (Nartshuk, 1964) is recorded for the first time for Iranian fauna. Geographical distribution and biological notes are provided.
Volume 5, Issue 4 (12-2016)
Abstract
This paper deals with the study of a leaf spot disease observed on Aloe vera leaves in various nurseries and botanical gardens during the routine surveys of two consecutive years of 2010 and 2011. The symptoms appeared in the form of circular to oval, brown to black, sunken spots on abaxial surface of leaves. The disease was observed only in January to February during the survey. Colonieson PDA were velvety, dark olivaceous to greenish black in colour. The identification of the pathogen was done phenotypically using disease symptoms and microscopic characteristics. Further investigation identified it as Cladosporium sphaerospermum Penzig which was also confirmed at Indian Type Culture Collection (ITCC), IARI, New Delhi, India. According to the literature, this is the first report of Cladosporium sphaerospermum as causal agent of leaf spot disease on A. vera from India.
Volume 6, Issue 1 (Winter 2023)
Abstract
Geography is one of the most important determinants of stability or instability in countries. geography is the basis of many social and political developments within countries, even the relations between them and their neighbors. One of the clear examples of this is Afghanistan. This country is known as a crisis-prone country in terms of human geography. War and insecurity, political instability, poverty, extensive internal disputes have plagued the people and this geography for years. The purpose of the current research is to explain the foundations of human geography in the crises of this country. This research is of a descriptive type, whose theoretical framework is obtained from the combination of Hoggett's theory and Cohen's theory, and based on it, the bases and contexts of the crisis in Afghanistan have been explained from a human geographical perspective. According to the findings of the research, all the crises in Afghanistan are affected by human geography and caused by human heterogeneity, the interventions of the powers, as a result of which this country has been in a fragile and unstable situation for years and has remained a crisis maker. Border disputes with neighbors, being landlocked, being a barrier, being located in a fragile region, multiple neighbors, disputes over common border rivers and changing their course are some of the most stable issues of Afghanistan's geography. Ethnicism, linguistic and religious prejudices, extreme fundamentalism, illiteracy, drug cultivation and trafficking, migration, poverty and deprivation, and nomads are among the controversial issues in strengthening humanitarian crises...
Volume 8, Issue 4 (8-2019)
Abstract
In this study, 174 leaf samples from main apple growing areas in Kurdistan and western Azarbaijan Provinces were examined for infection by Apple chlorotic leaf spot virus (ACLSV). The result of RT-PCR showed that 17 samples (9.7%) were infected by ACLSV in both provinces. Subsequently, the genetic structure of ACLSV was determined based on the full coat protein (CP) sequences of eight isolates from this study and those recently published from Iran and worldwide. In phylogenetic analysis, ACLSV isolates from apple clustered into three known phylogenetic types; B6, P205, and SHZ, which are characterized by three amino acids at positions of 40, 75 and 79. The new Iranian ACLSV isolates showed the CP amino acid sequence of Ser40-Tyr75-Glu79 which placed them with the B6 type. Further analyses showed that the Iranian ACLSV isolates (the new and previously published isolates) had lower genetic variability compared to isolates from other countries except for Brazilian population. Most of the CP codons were under negative selection (dN/dS < 1) except for one codon at position 92 which was under positive selection. This study suggests that negative selection was most important evolutionary factor driving the genetic evolution of ACLSV.
Volume 9, Issue 0 (تابستان 85- 2010)
Abstract
Background and objective: VEP is a powerful method to study visual system via evaluating evoked potentials. Technologic and instrumental restrictions may be the reason of having studies on optical modulation and induction such as color, spatial frequency and contrast. Developments of computer software and hardware may lead to an increase in the flexibility of pattern designs.
Material and methods: Visual psychophysical principles of color, spatial frequency and contrast was used to design patterns. Using the Delphi 5 package. Recording system and pattern reversing were synchronized by a software and some hardware components including an A/D, monostable and an extension Board. A trigger signal from a VEP system was used to change optical properties of patterns according to a definite algorithm.
Results and conclusion: All of the optical parameters such as color, spatial frequency and contrast that have influence on visual evoked potentials can be changed independently or in an interactive manner by means of user friendly multiple windows and logical methods. Therefore, optical modulation and induction are made possible by this system. Temporal, spatial and contrast modulation can be carried out independently or dependently with a trigger signal from a VEP system. Dynamic interaction of optical parameters shows new horizons on VEP studies.
Volume 10, Issue 1 (1-2021)
Abstract
This study was designed and performed to evaluate the effect of using the active edible coating of sodium alginate containing different levels of rosemary extract on physicochemical and microbial properties of silver carp-chicken fillet mixed burger during storage. 5 treatments including uncoated burgers (control) with sodium alginate coating enriched with levels of 0, 0.5, 1 and 1.5% of rosemary extract were considered. Burgers were stored at -18 ° C for 3 months. Results showed that the use of sodium alginate coating significantly decreased the percentage of burger cooking drop. Enrichment of sodium alginate coating with different levels of rosemary extract improved its performance (P<0.05). The lowest total microbial count, psychrophilic bacteria count, TVN, PV and TBA were observed in coated burgers containing 1.5% of rosemary extract (P<0.05). There was no statistically significant difference in the performance of coatings containing levels of 1 and 1.5% of rosemary extract in decreasing TBA. Thus it is possible to use the active edible coating of sodium alginate containing 1.5% of rosemary extract to delay bacterial and oxidative spoilage of silver carp-chicken fillet burgers during a 3-month storage period at -18 ° C used. |
Volume 10, Issue 1 (3-2024)
Abstract
Andreimyrme substriolata (Chen, 1957) and Odontomutilla fletcheri Lelej, Terine & Girish Kumar, 2020 (Hymenoptera, Mutillidae) are newly reported from India. O. fletcheri was only recorded from Sri Lanka till now & A. substriolata was only known from various Southeast Asian countries (China, Taiwan, Indonesia, Japan, Laos, Malaysia, Thailand and Vietnam), in the present study these species are discovered from India which pronounce the geographical affinities of India with Sri Lanka and Southeast Asian countries and vice versa. Diagnosis, figures, distribution maps and remarks of these species are provided.
Volume 10, Issue 2 (2-2021)
Abstract
The black pod disease of cocoa in Ghana caused by Phytophthora palmivora and P. megakarya is traditionally managed with fungicides. Because of challenges associated with fungicide use, biological control options, if available, are worth trying. A fungus with proven usefulness in suppressing P. palmivora and P. megakarya in dual plate cultures and cocoa pods has partly been identified as an Aspergillus (designated AI_1). However, its exact identity has been unknown, requiring specific identification by comparing it with known Aspergillus flavus strains (designated AI_2, AI_3, AI_4, and AI_5). It was retested against P. palmivora to confirm the potency of AI_1. The putative A. flavus isolates were also tested for the first time against P. palmivora. Morphological features were determined on carrot agar (CA), potato dextrose agar (PDA), and malt extract agar (MEA). Genomic DNAs from the Aspergillus isolates were subjected to the ITS region and β-tubulin gene sequencing. All the Aspergillus isolates inhibited P. palmivora in assay plates by levels ranging from 89.33 to 95.33% (Experiment 1) and 46.67 to 60.33% (Experiment 2). Generally, the AI_1 produced culture features similar to those of the putative Aspergillus flavus isolates. ITS region sequence analysis grouped all isolates as A. flavus and beta-tubulin also grouped AI_1, AI_2, AI_3, and AI_4 as A. flavus but differentiated AI_5 as A. flavus var. parvisclerotigenus. AI_3 recorded the highest inhibition zone and prevented black pod development of inoculated pods as well. The previously unknown Aspergillus isolates AI_1 is now conclusively identified as A. flavus.
Volume 11, Issue 1 (5-2011)
Abstract
This paper investigates the impact of exchange rate on non-oil export covering the period from 1978 to 2006. The method used in this study is Panel data, and these countries are selected as the hosts: Turkey, The United Arab Emirates, Saudi Arabia, Kuwait and Pakistan. In this research, Gross Domestic Product of the host country, Bilateral Exchange Rate, Price Raito and Dummy Variable are used as regressor for non-oil exports. The result of this study shows that, gross domestic product and exchange rate have positive effect, but price ratio and dummy variable have negative effect on non-oil exports of Iran to these countries. Also Cross Section Specific coefficient shows that exchange rate has positive effect on export to Turkey, The UAE and Pakistan, while negative effect on other countries.
Volume 11, Issue 2 (6-2025)
Abstract
The Palni Hills, part of the Western Ghats Mountain range in southern India, constitute a biodiversity hotspot, and their high elevation creates unique ecological conditions. Despite global recognition of the region as a biodiversity hotspot, many taxonomic groups remain poorly studied, including mayflies. We conducted a survey of mayflies in the Palni Hills to document the current diversity profile and analyse their altitudinal distribution patterns, ranging from 346 to 1685 m asl. Our sampling from April to October 2023 covered eleven sites, resulting in the collection of 788 individuals, representing 24 species, 16 genera, and six families. Four species are reported for the first time from Palni Hills. Notably, the families Baetidae, Heptageniidae, and Leptophlebiidae were the most species-rich, although individual population densities remained low. We have provided the updated taxonomic hierarchy, current diversity profile, and abundance of mayflies of Palni Hills. We have also highlighted the knowledge gaps in the taxonomy and distribution of Ephemeroptera within this study area
Volume 11, Issue 5 (November & December, (Articles in English & French) 2020)
Abstract
This study examined blurbs in the discipline of economics to investigate how evaluative lexico-grammatical resources are employed in the logogenetic constructions of these blurbs. The study was informed by the appraisal framework proposed by Martin and White (2005), which describes the language of our attitudes, viewpoints, and personal judgments toward people, objects, and things. All three categories of the appraisal framework, including attitude, engagement, and graduation, were thoroughly explored. Findings demonstrated that economics blurbs are densely packed with appreciation. Graduation was also found to be realized both as intensification and quantification. The study showed that blurbs can be dialogically or monologically constructed based on the presence or absence of external voices as well as engagement resources and locutions. Meanwhile, lexico-grammatical realizations were found not to be restricted to one type of grammatical structures. Various forms including adjectival qualities, nominalized qualities, and processes are employed for encoding evaluative resources. The findings of the study provide those interested in this genre insights into the practical details of blurbs’ advertising discourse and keep them informed of the curricular rules and regularities dominating promotional discourse
Volume 13, Issue 1 (Winter 2025)
Abstract
Aims: Tuberculosis is still a significant global health challenge, particularly in developing countries. This study aimed to evaluate the impact of the TB SEHAT application on medication adherence among pulmonary tuberculosis patients in Jambi City.
Materials & Methods: This quasi-experimental study employed a one-group pre-test-post-test design with a control group, comprising two groups; an intervention group that received TB SEHAT app-based education and a medication reminder program, and a control group that received standard care from medication supervisors. Each group included 37 participants, selected through simple random sampling. Data collection was done from May 13 to August 30, 2024, within the service area of the Putri Ayu Health Center. Data analysis was performed by SPSS 23.
Findings: Following the use of the TB SEHAT application, the mean adherence to anti-tuberculosis drugs was 127.30±5.22 on the TB Medication Adherence Scale. In contrast, the mean adherence in the group receiving standard treatment supervision was 121.41±6.43. An analysis of covariance indicated a significant difference in adherence between the TB SEHAT application and standard treatment groups (p=0.001).
Conclusion: The TB SEHAT application effectively improves adherence to anti-tuberculosis drugs in patients with pulmonary tuberculosis.
Volume 15, Issue 1 (1-2013)
Abstract
The diallel cross design is frequently utilized to obtain information on genetic effects, estimates of General and Specific Combining Ability (GCA and SCA) and to identify promising heterotic combinations as well as heterotic patterns. In the present study, heterotic crosses were identified for specific alkaloids in opium poppy (Papaver somniferum L.) following Yan’s GGE Biplot model by use of 5×5 full diallel data. The results obtained through biplot analysis were compared with those obtained through Griffing’s to check and confirm the accuracy of Yan’s GGE biplot model. Parents A (papline), B (NB5KR40-7/2-3), and E (58/1) were identified as good general combiners. The crosses B×C, B×E and E×B for morphine, C×D and C×E for narcotine, and A×B, A×C and A×E were identified as heterotic combinations. None of the crosses were found heterotic for codeine and thebaine.
Volume 15, Issue 3 (July & August (Articles in English & French) 2024)
Abstract
The integration of technologies and social media into second/foreign language education has recently gained momentum in different contexts. Given their nature, social media have been empirically identified to improve different aspects of L2 teaching and learning. However, their facilitative role in enhancing EFL/ESL students’ language skills and academic engagement has been limitedly explored. To fill this lacuna, the present study intended to provide a theoretical analysis on the utility and power of injecting technologies and social media into L2 classes and improve students’ language skills and academic engagement. In so doing, the conceptualizations, definitions, dimensions, and empirical studies that provide evidence for the interplay of these constructs are presented. Moreover, a variety of implications are enumerated for EFL/ESL teachers, learners, teacher trainers, language policy-makers, curriculum designers, and scholars in L2 education, who can recognize the facilitative role of social media in English language teaching learning.
Volume 15, Issue 8 (10-2015)
Abstract
In this research an inverse design algorithm, called ball-spine algorithm (BSA) is developed on a 90-degree bend duct between the radial and axial diffuser of a centrifugal compressor with viscous swirling inflow to bend duct. The shape modification process integrates inverse design algorithm and a quasi-3D analysis code. For this purpose, Ansys CFX software, is used as flow solver and inverse design algorithm is written as a code inside it. Shape modification is accomplished for viscous and inviscid flow to check the effect of viscosity on convergence rate. Also, the effect of swirl velocity in shape modification process is investigated, by considering increased pressure as the target parameter. The algorithm reliability for swirling flow is verified by choosing different initial geometries. Finally, aerodynamic design of the bend duct with BSA is accomplished to reduce losses in 90-degree bend. Shape modification process is carried out by improving the current wall pressure distribution and applying it to the inverse design algorithm. Results show that convergence rate and stability of BSA are favorable for designing ducts with swirling viscous flow. So that, the pressure recovery coefficient of the 90-degree bend duct is 4%increased.
Volume 16, Issue 87 (5-2019)
Abstract
Abstract
Today, the use of plant extracts has been considered as natural preservatives or food additives with antioxidant and antimicrobial properties alone or in combination with edible coatings. The aim of this study was to investigate the effect of Eryngium caucasicum extract (0.75%) with combined edible coatings based on xanthan gum (1.5%) and guar (0.5%), an examination were carried out with 5 treatments of uncoated chicken fillets (control) fillets containing xanthan and guar coatings alone or in combination with Eryngium caucasicum extract and 3 replicates per treatment during a 12-day refrigerated storage. The results showed that Eryngium caucasicum extract significantly (p <0.05) improved the antibacterial function of guar coating. However, there was no effect on the antimicrobial efficacy of xanthan coatings. The lowest amount of pH was observed in the fillets containing xanthan and Eryngium caucasicum extract. Also, at the end of the period, the lowest amount of peroxide value and index of thiobarbituric acid was observed in the fillet coated with guar and Eryngium caucasicum extract (p <0.05). On the other hand, the type of edible coating did not have a significant effect on the content of total volatile nitrogen compounds. However, the effect of Eryngium caucasicum extract on improving the effectiveness of guar edible coating was significant in reducing total volatile nitrogen compounds of fillet (p <0.05). In general, the results showed that, given the antioxidant and antimicrobial properties of Eryngium caucasicum extract, it can be combined with edible coatings to increase the shelf life of chicken fillet at refrigerated storage.
Keywords: Xanthan, Eryngium caucasicum, chicken fillet, guar, shelf life
Volume 17, Issue 2 (3-2015)
Abstract
The aim of present study was to investigate the effect of individual and co-inoculation of Trichoderma species and arbuscular mycorrhizal fungi (AMF) on growth, mycorrhization, population of Trichoderma, and wilt disease severity in pigeon pea (Cajanus cajan L Millsp). Three species of Trichoderma, namely, T. harzianum (Th), T. virens (Tr), and T. viride (Tv) and consortium of AMF (Myc; mixture of Funneliformis mosseae, Glomus cerebriforme, Rhizophagus irregularis) individually (Th, Tr, Tv and Myc) and in different combinations (Th+Myc,Tr+Myc and Tv+Myc) were tested. Among all the treatments, co-inoculation of Th and Myc gave highest growth and reduced severity of wilt disease of pigeon pea significantly (P< 0.05). Mycalone was sufficient for growth promotion but it was effective in terms of disease suppression when inoculated before pathogen. Fusarium reduced the shoot length, dry weight, phosphorus (P) uptake of plants, AMF colonization, spore density, and population of Trichoderma. Results clearly showed that different species of Trichoderma produced varied results with Myc.
Volume 17, Issue 98 (April 2020)
Abstract
To investigate of enrichment of breast and thigh meat using vegetable oil sources and effect on oxidative stability of meat during storage, the experiment using 1-old day chickens Arian commercial strain was conducted. Experimental diets were prepared with canola oil or pumpkin seed oil and their fatty acid profiles were determined. The chicks were fed one of two diets during the breeding period in four replicates per treatment . The results showed that thigh meat of broilers were fed with canola oil, significantly contained higher linolenic acid , oleic acid, and total unsaturated fatty acids (USFAs) and those were fed with diets containing pumpkin seed oil contained significantly (p<0.01) higher linoleic acid, arachidonic acid (omega 6) and total polyunsaturated fatty acids (PUSFAs). The amount of linoleic acid and linolenic acid in the breast meat was not affected by the type of oil. But, oleic acid values (omega 9), ratio of USFAs / SFAs and ratio of PUSFAs / SFAs in canola oil-fed chickens and arachidonic acid (omega-6) in chickens pumpkin seed oil-fed were higher (p<0.01). The amount of malondialdehyde (MDA) in thighs and breasts were increased during storage at refrigerated temperature. Thigh meat MDA value of canola oil-fed broiler was significantly higher at the end of storage period (p<0.05). At freezing temperature, the oxidative stability of thigh and breast meat of broiler were fed pumpkin seed oil was significantly higher (p<0.05). Therefore, by manipulating the combination of dietary fatty acids with vegetable oil sources, can be altered the pattern of thigh and breast fatty acids profile. During the storage period, oxidation spoilage increases in meats enriched with PUSFAs, especially omega-3 fatty acids. Key words: Oxidation, Fatty acid profile, Omega 3, Oxidative stability, Vegetable oil, Enrichment