Podcast
Questions and Answers
Which type of wheat rust is caused by Puccinia triticina?
Which type of wheat rust is caused by Puccinia triticina?
- Black or stem rust
- Brown or leaf rust (correct)
- Yellow or stripe rust
- None of the above
Which kingdom does the wheat rust belong to?
Which kingdom does the wheat rust belong to?
- Plantae
- Protista
- Animalia
- Fungi (correct)
Which type of spore is responsible for explosive discharge in rust fungi?
Which type of spore is responsible for explosive discharge in rust fungi?
- Type 0 - Pcyniospores (Spermatia)
- Type I - Aeciospores
- Type II - Urediniospores
- Type IV - Basidiospores (correct)
Which type of spore is not contained within Basidiocarp in rust fungi?
Which type of spore is not contained within Basidiocarp in rust fungi?
Which characteristic is NOT important for rust fungi?
Which characteristic is NOT important for rust fungi?
Which organism is responsible for citrus gummosis?
Which organism is responsible for citrus gummosis?
Which disease is caused by a viroid in citrus plants?
Which disease is caused by a viroid in citrus plants?
Which disease is transmitted by Toxoptera citricida?
Which disease is transmitted by Toxoptera citricida?
What is the main symptom of citrus gummosis?
What is the main symptom of citrus gummosis?
Which citrus variety is highly susceptible to gummosis?
Which citrus variety is highly susceptible to gummosis?
Study Notes
Wheat Rust
- Puccinia triticina causes brown rust of wheat.
- Wheat rusts fall under the Fungi kingdom.
Rust Fungi Spores
- Aeciospores are responsible for explosive discharge in rust fungi.
- Teliospores are not contained within the Basidiocarp in rust fungi.
Characteristics of Rust Fungi
- Agility in spore dispersal and host range, rather than having broad environmental tolerances, is less critical for rust fungi.
Citrus Diseases
- Citrus gummosis is caused by the pathogen Phytophthora citrophthora.
- A viroid causes the disease known as Citrus Exocortis.
- Toxoptera citricida is responsible for transmitting Citrus Leaf Mottle disease.
Symptoms and Susceptibility
- The main symptom of citrus gummosis is the exudation of gum from the trunk and branches.
- The Valencia orange variety shows high susceptibility to gummosis.
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Description
Test your knowledge of wheat rust disease classification and important characteristics of rust fungi in this quiz. Learn about the kingdom, phylum, class, order, and family of wheat rust fungi, as well as their unique features such as obligate parasitism and intercellular growth.
