Question

Name any two fungi causing powdery mildew disease?

Answer 1

Hope this answer will help u

Answer 2

Fungi rarely cause disease in healthy immunocompetent hosts. Disease results when fungi accidentally penetrate host barriers or when immunologic defects or other debilitating conditions exist that favor fungal entry and growth.

Adaptation and Propagation

Fungi often develop both virulence mechanisms (e.g., capsule and ability to grow at 37oC) and morphologic forms (e.g., yeasts, hyphae, spherules, and sclerotic bodies) that facilitate their multiplication within the host.

Dissemination

Dissemination of fungi in the body indicates a breach or deficiency of host defenses (e.g., endocrinopathies and immune disorders).

Host Factors

Healthy, immunologically-competent individuals have a high degree of innate resistance to fungi. Resistance to fungi is based primarily upon cutaneous and mucosal physical barriers. Severity of disease depends on factors such as inoculum, magnitude of tissue destruction, ability of fungus to multiply in the tissue, and the immune status of the host.

Fungal Factors

Enzymes such as keratinase, the presence of capsule in Cryptococcus neoformans, the ability to grow at 37°C, dimorphism, and other as yet undefined factors contribute to fungal pathogenesis which involves a complex interplay of many fungal and host factors.