STUDY OF MORPHOLOGICAL AND PHYSIOLOGICAL CHARACTERISTICS OF SOME TYPES OF FUNGUS ASPERGILLUS SPP.

Abstract

Aspergillus is considered the most genera of fungi that pollutes vegetables and is of great importance as it is used in the food and pharmaceutical industries, on the other hand, some of them are harmful to human health. In this study, the morphological and physiological characteristics of A. niger, A. flavus, A. fumigatus, A. tubingensis, and Aspergillus spp. that were isolated from onions, carrots, peppers, cucumbers, and tomato were studied and grown in potato dextrose agar for a week. After that study the macroscopic characteristics of the colony with the naked eye and microscopic examination.One of the most important results that have been reached is the speed of growth of these species and their adaptation to the surrounding conditions. The similarity between the types of black Aspergillus and the contrast between the other types. In addition, the relationship between the morphological and physiological characteristics of these species is represented by their ability to secrete enzymes, toxins, vital metabolites, and metabolism. Given the importance of the morphological characteristics and their relationship to the physiological characteristics of the species of Aspergillus, we recommend that the studies be expanded to include more types with different environmental conditions and different regions because of the effect that this has on those characteristics and to obtain more accurate and comprehensive information.

Keywords

• aspergillus
• morphological
• physiological
• microscopic examination