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Full-Text Articles in Plant Sciences

Assessment Of Grain Safety In Developing Nations, Jose R. Mendoza Dec 2020

Assessment Of Grain Safety In Developing Nations, Jose R. Mendoza

Department of Food Science and Technology: Dissertations, Theses, and Student Research

Grains are the most widely consumed foods worldwide, with maize (Zea mays) being frequently consumed in developing countries where it feeds approximately 900 million people under the poverty line of 2 USD per day. While grain handling practices are acceptable in most developed nations, many developing nations still face challenges such as inadequate field management, drying, and storage. Faulty grain handling along with unavoidably humid climates result in recurrent fungal growth and spoilage, which compromises both the end-quality and safety of the harvest. This becomes particularly problematic where there is little awareness about health risks associated with poor …


Challenges And Solutions For Forage Conservation For Small And Large Enterprises, M. Goto, H. Kawamoto, H. Matsuyama, Ryuichi Uegaki Jan 2020

Challenges And Solutions For Forage Conservation For Small And Large Enterprises, M. Goto, H. Kawamoto, H. Matsuyama, Ryuichi Uegaki

IGC Proceedings (1997-2023)

Forage conservation, particularly silage making, is one of the major technologies used as an interface between forage production and animal production, and the advanced technology of biological, chemical, and enzymatic additives for making silage has contributed significantly to the development of livestock production. However, the increasing demand for meat and dairy products, severe environmental deterioration induced by livestock production, and the critical risks to human health associated with mycotoxin contamination of forage crops remain to be addressed. Here we review the extant literature regarding treatment with various silage additives in relation to new paddy field forage production systems, mycotoxin contamination …


Genetic Diversity Of Aflatoxin-Producing Aspergillus Flavus Isolated From Selected Groundnut Growing Agro-Ecological Zones Of Uganda, Amos Acur, Renee Arias, Steven Odongo, Samuel Tuhaise, National Agricultural Research Laboratories, Kampala, Uganda, John Adriko, Dennis Muhanguzi, Stephen Buah, Andrew Kiggundu Jan 2020

Genetic Diversity Of Aflatoxin-Producing Aspergillus Flavus Isolated From Selected Groundnut Growing Agro-Ecological Zones Of Uganda, Amos Acur, Renee Arias, Steven Odongo, Samuel Tuhaise, National Agricultural Research Laboratories, Kampala, Uganda, John Adriko, Dennis Muhanguzi, Stephen Buah, Andrew Kiggundu

United States Department of Agriculture-Agricultural Research Service / University of Nebraska-Lincoln: Faculty Publications

Background: Groundnut pre- and post-harvest contamination is commonly caused by fungi from the Genus Aspergillus. Aspergillus flavus is the most important of these fungi. It belongs to section Flavi; a group consisting of aflatoxigenic (A. flavus, A. parasiticus and A. nomius) and non-aflatoxigenic (A. oryzae, A. sojae and A. tamarii) fungi. Aflatoxins are food-borne toxic secondary metabolites of Aspergillus species associated with severe hepatic carcinoma and children stuntedness. Despite the well-known public health significance of aflatoxicosis, there is a paucity of information about the prevalence, genetic diversity and population structure of A. flavus in different …


Genetic And Biochemical Characterization Of Ergot Alkaloid Synthesizing Fungi And Their Symbionts, Matthew Duane Maust Jan 2020

Genetic And Biochemical Characterization Of Ergot Alkaloid Synthesizing Fungi And Their Symbionts, Matthew Duane Maust

Graduate Theses, Dissertations, and Problem Reports

Ergot alkaloids are fungal tryptophan derived toxins which affect mammalian circulation and neurotransmission. These compounds are biosynthesized by a conserved genetic pathway, known as the ergot alkaloid synthesis (EAS) pathway by fungi belonging to the ascomycete families Trichocomaceae and Clavicipitaceae. Several Ipomoea species and related plants in the morning glory family harbor vertically transmitted symbiotic fungi in the genus Periglandula, also members of Clavicipitaceae, that produce ergot alkaloids. Metabolomic analysis of seeds identified a previously uncharacterized glycoside form of the pharmaceutically important ergot alkaloid, ergonovine. Several species belonging to the fungal genus Metarhizium have recently been shown to have the …