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Advances in research of the structural gene characteristics of the aflatoxin biosynthetic gene cluster

Published on: 31st October, 2018

OCLC Number/Unique Identifier: 7912359098

Aflatoxins, produced by Aspergillus spp., are strongly toxic and carcinogenic fungal secondary metabolites. Aflatoxin biosynthesis is a complex process and involves at least 30 genes clustered within an approximately 75 kB gene cluster. In this paper, we reviewed current status of the researches on the characterized structural genes involved in aflatoxin biosynthesis and their roles in aflatoxin-producing fungi, especially in A. flavus and A. parasiticus, which will improve our understanding of the mechanism of aflatoxin biosynthesis and regulation and provide reference for further study.
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Use of essential oils as new food preservatives (Case: Eucalyptus grandis and Eucalyptus crebra)

Published on: 2nd November, 2018

OCLC Number/Unique Identifier: 7912408220

This study purposed to study the Preservative agents that are required to ensure that manufactured foods remain safe and unspoiled; work was conducted to evaluate the efficacy of essential oils from two eucalyptus species, Eucalyptus grandis and Eucalyptus crebra in food preservatives; to run this experiment flesh eucalyptus leaves collected from Ruhande Arboretum forest were submitted to hydrodistillation and yields(amount) of 0.38 and 0.34 % for Eucalyptus grandis and Eucalyptus crebra were obtained, respectively. Phaseolus vulgaris, Sorghum condatum, cooked Ipomoea batatas (sweet potatoes) and bread were the sample foods used to assess their preservative efficacy. Acanthoscelides obtectus and Stophilus oryzae were used as pests for Phaseolus vulgaris and Sorghum condatum respectively. For bread and cooked Ipomoea batatas, Rhizopus nigricans are used to assess the efficacy of these two essential oils to inhibit their growth; the obtained results revealed that those essential oils could act as insecticide in the storage of Phaseolus vulgaris and Sorghum condatum. Essential oil from Eucalyptus grandis protected these two foods against pests in the periods of 4 and 9 days, respectively while essential oil from Eucalyptus crebra protected them for the periods of 6 and 11days, respectively.
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Inventorization and Exploration of Floral Diversity in Metropolitan Cities of India for Their Suitability in Floriculture of Kashmir

Published on: 18th November, 2024

Floriculture is the branch of horticulture that deals with the cultivation and management of flowers and ornamental plants and has blossomed into commercial activity with considerable growth and a useful crop diversification option, particularly for small farmers over the past three decades. It is a global industry with significant economic, social, and aesthetic values. Globally 171 countries practice floriculture. India occupies 51st position in terms of exports and contributes Rs. 455 crores which is 0.06% of global trade.The present study was carried out during the College on Wheels project organized by the Higher Education Council, Union Territory of Jammu & Kashmir, and was aimed to explore the floral and ornamental plant diversity of major metropolitan cities like Delhi, Goa, Bengaluru, Mumbai, etc. of India for evaluating their suitability for introduction in floriculture of Union Territory of Jammu & Kashmir.The floral and ornamental plant species were explored, photographed, evaluated, identified, and inventorised. A total of 51 species belonging to 23 different families of floral and ornamental plants were explored and evaluated in terms of parameters like climate, soil type, photoperiod requirements, watering needs, and maintenance requirements for their cultivation. It was found that some of the explored species of ornamental plants were already introduced into the Union Territory of Jammu and Kashmir because the parameters for the successful growth and thriving of these species match with the existing climatic and other conditions in the Union Territory of Jammu and Kashmir. Besides, the climatic and other requirements of some of the explored species were found in conformity with the climatic and other parameters available in the Union Territory of J&K for the successful establishment and growth of plants. Thus, there is an urgent need to introduce these explored species into the region to enhance the floral diversity of ornamental plants, beautify the landscape, and promote tourism and the generation of better livelihood. The Department of Floriculture should take a lead role in this direction to import these floral and ornamental plant specimens from pan India.
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An analysis of wild animals with respect to French Ethics and Law

Published on: 9th May, 2019

OCLC Number/Unique Identifier: 8163878958

Before discussing the crux of the matter, it is important to understand what “wild” signifies and the characteristics that define a wild animal. As contrasted to domesticated animals, a wild animal can be defined as an animal living freely in his natural habitat, independently of Man. These animals are only exposed to variations in the biological equilibrium, to the imperatives of their genetic program and live in a habitat that gives them the possibility of expressing it themselves. However, this definition is very narrow as there exist a number of species of wild animals that don’t live freely in their natural habitat. These animals are constrained by Man, who by creating a relationship of dependence, controls them and in turn becomes responsible for their sustenance. In such a situation, their habitat is no more their natural habitat but than which has been imposed on them by Man; such animals are said to be “held in captivity” or even “tamed”. In short, when talking about law and ethics related to wild animals, there are two things to be taken into account: wild animals that live in the wild and wild animals that live held in captivity by Man.
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Role of pollen morphology in taxonomy and detection of adulterations in crud drugs

Published on: 2nd April, 2020

OCLC Number/Unique Identifier: 8577732918

Present paper communicates 42 species of angiosperms depicting characteristics of pollen grains as shape, color, exine ornamentations, and type of apertures. Pollen morphological characters are very important in plant identifications in field. Pollen surface features plays significant role in taxonomy and detection of crud drugs. Firsthand information is gathered from field and provided in this research article.
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Exploring the Complexity of Protein Structure Determination Through X-ray Diffraction

Published on: 21st November, 2023

The determination of a protein structure by using X-ray diffraction encompasses a series of sequential steps (including gene identification and cloning, protein expression and purification, crystallization, phasing model building, refinement, and validation), which need the application of several methodologies derived from molecular biology, bioinformatics, and physical sciences. This article thoroughly examines the complicated procedure of elucidating protein structures within plant biology, using X-ray diffraction as the primary methodology. Commencing with the gene identification process and progressing toward crystallography, this article explores the many obstacles and achievements in acquiring diffraction pictures and their subsequent conversion into electron density maps. The ensuing phases of model construction, refinement, and structural validation are thoroughly examined, providing insight into the inherent complexity associated with each stage. The paper also discusses the critical component of understanding the resultant model and scrutinizing its biological significance. By comprehensively examining these stages, this article presents a nuanced comprehension of the intricate procedure in ascertaining protein structures within plant biology. It offers valuable insights into the obstacles encountered and the biological importance of the acquired structural data.
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Haematopoietic Cell Transplants in Adults Acute Lymphoblastic Leukaemia in a Resource-poor Middle East Country

Published on: 8th January, 2025

Background: Outcomes of chemotherapy in adults with ALL in resource-poor countries are reportedly worse compared with outcomes in resource-rich countries. There are few comparative data on transplants in these settings.Methods: Retrospective analysis of 102 consecutive subjects > 18 years with ALL receiving an allotransplant from Jan 2007 to Sept 2022 in Jordan.Results: Median follow-up is 38 mo ([IQR] 16-80 mo). 81 subjects were men. The median age was 29 y(IQR 22-36 y). 63 were B-cell and 38, were T-cell lineage. 31 had the Ph-chromosome. 68 were in 1st and 34, ≥ 2nd histological complete remission. 97 received intensive conditioning. Donors were an HLA-identical sibling (N = 88) or an HLA-mis-matched relative (N = 14). Grafts were blood cells. Subjects received conventional GvHD prophylaxis, cyclophosphamide (N = 11) or ATG (N = 3). All subjects recovered bone marrow function with complete donor chimerism. 5-year leukemia-free survival (LFS), 58% (47, 69%) and survival, 45% (34, 56%). 45 subjects developed acute and 44, cGvHD. 3-year cumulative incidence of cGvHD was 28% (15, 42%). 5-year CIR was 32% (18, 45%) and 3-year NRM, 25% (15, 35%).Conclusion: Allotransplant outcomes in adults with ALL in Jordan, a resource-poor country, seem comparable to those reported in resource-rich countries.
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The Use of Thioxopyrimidine Derivatives as New Regulators of Growth and Photosynthesis of Barley

Published on: 2nd July, 2024

New synthetic compounds - thioxopyrimidine derivatives as regulators of vegetative growth and photosynthesis of spring barley (Hordeum vulgare L.) variety Acordine were studied. The growth-regulatory effect of new synthetic compounds, thioxopyrimidine derivatives, used in a concentration of 10-6M, was compared with the growth-regulatory effect of a plant hormone auxin IAA (1H-indol-3-yl)acetic acid) or synthetic plant growth regulators, derivatives of sodium and potassium salts of 6-methyl-2-mercapto-4-hydroxypyrimidine (Methyur, Kamethur), N-oxide-2,6-dimethylpyridine (Ivin), used in a similar concentration of 10-6M. The conducted study showed the similarity of the growth-regulatory effects of synthetic compounds, thioxopyrimidine derivatives, the plant hormone auxin IAA, and synthetic plant growth regulators Methyur, Kamethur, and Ivin. Morphometric parameters (average length of shoots (mm), average length of roots (mm), and average biomass of 10 plants (g)) and biochemical parameters (content of photosynthetic pigments chlorophylls a, b, a+b and carotenoids (µg/ml)) of barley plants treated with the plant hormone auxin IAA or synthetic plant growth regulators Methyur, Kamethur, Ivin or thioxopyrimidine derivatives were increased after 4 weeks compared to control plants. The dependence of the growth-regulatory effect of synthetic compounds, thioxopyrimidine derivatives on their chemical structure was analyzed. The use of the synthetic plant growth regulators, derivatives of sodium salt of 6-methyl-2-mercapto-4-hydroxypyrimidine (Methyur), potassium salt of 6-methyl-2-mercapto-4-hydroxypyrimidine (Kamethur), N-oxide-2,6-dimethylpyridine (Ivin) and selected most active synthetic compounds, thioxopyrimidine derivatives for regulating the growth and photosynthesis of spring barley (Hordeum vulgare L.) variety Acordine is proposed.
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Anesthetic Management of a Patient with Left Ventricular Thrombus Posted for Emergency Laparotomy

Published on: 2nd April, 2025

Left ventricular thrombus (LVT) is a life threatening complication following acute coronary syndromes but in modern era its incidence has reduced since the introduction of primary percutaneous intervention. LVT is associated with higher morbidity and mortality due to its thromboembolic events and major adverse cardiac events (MACE). This is a case report of 30-year-old male  who presented with acute abdomen and left ventricular thrombus. CECT abdomen revealed superior mesenteric artery (SMA) thrombosis and echocardiography revealed severe ventricular dysfunction (ejection fraction, EF<30%) with global hypokinesia and LVT. SMA thrombosis is fatal and if left unattended can lead to intestinal ischemia and gangrene, hence immediate intervention is warranted. This patient had undergone emergency laparotomy under general anesthesia for the resection of gangrenous jejunal segment with mucous fistula . This case report discusses perioperative management considerations in such cases.
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Caregivers’ Nutritional Awareness and its Impact on Pediatric Health Outcomes: A Study at Wad-Albasheir Health Center, Sudan

Published on: 3rd April, 2025

Background: Nutritional awareness among caregivers plays a crucial role in ensuring optimal pediatric health and development. This study assesses the level of nutritional awareness among caregivers and examines its association with demographic factors.Objectives: This study aimed to assess the knowledge and awareness of caregivers regarding dietary advice and complementary feeding for children under five years at Wad-Albasheir Family Health Center, Um-Bada locality.Methods: A cross-sectional study was conducted among caregivers in selected healthcare facilities. Data were collected using a structured questionnaire and analyzed using SPSS version 23. Descriptive statistics and chi-square tests were used to evaluate associations between variables.Results: The majority of caregivers demonstrated moderate awareness (60%), while 22.5% had low awareness and 17.5% had high awareness. A significant association was observed between education level and awareness (p < 0.05). Employment status also influenced awareness levels, with employed caregivers showing higher knowledge scores.Conclusion: Nutritional awareness is a key determinant of pediatric health. Strengthening educational programs targeting caregivers can improve child nutrition outcomes.
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