This occurs by the formation of fixed or immovable asexual spores, known as conidiophores. This occurs by the splitting of vegetative mycelium into two or more parts with each part growing individually just like the parent mycelium. Penicillium has the ability to reproduce by means of vegetative, asexual and sexual reproductive methods. Food in penicillium is stored in the form of oil globules.
In some of the vegetative body, mycelia grow much deeper into the substratum in order to absorb food nutrients while others persist on the substrate to form a mycelial felt. Each septum possesses a central pore necessary for the maintenance of cytoplasmic continuity. Its vegetative body is known as mycelial and is to a great degree branched with septate hyphae, which is composed of thin-walled cells made up of one or more nuclei. glabrum which are unbranched and they just bear one cluster of phialides occupying the top of the stipe. One important feature in the identification of Penicillium species is its branching as can be seen in some species like P. The oldest spores occupy the apex of the phialides while the youngest spores are found at the base of the phialides. They are manufactured or produced in dry chains and they emanate from the tips of the phialides. They possess simple or branching structures that are slightly elongated and end in clusters of flask-shapes known as phialides and are called conidiophores. Penicillium species are widely notable for their numerous and closely packed brush-like structures that produce spores which are called penicilli (sing.: penicillus). The organism is a saprophytic fungus are mostly present in the soil, in the air, and in decaying organic matter and is most commonly referred to as the green or blue mold. Microorganisms like bacteria, yeasts, and molds, can be found in even the regularly cleaned refrigerators, however, the most fruitful search for Penicillium is one conducted in a refrigerator that has been left without cleaning for a period of 2 months or more. Its microscopy can make the organism pass for an interesting life form to study with the aid of the microscope specimens of the organism are readily available in one's own refrigerator which can be a fruitful search area.
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