Question:
Which of the following statement is/are correct about Fusarium oxysporum f. sp. cubense?
(A). Race 1 of Fusarium oxysporum f. sp. cubense do not infect Cavendish banana
(B). Race 4 of Fusarium oxysporum f. sp. cubense infects Cavendish banana
(C). Race 4 Fusarium oxysporum f. sp. cubense is prevalent in India
(D). Race 1 Fusarium oxysporum f. sp. cubense infect Gros Michel banana
Choose the correct answer from the options given below:
Which of the following statement is/are correct about Fusarium oxysporum f. sp. cubense?
(A). Race 1 of Fusarium oxysporum f. sp. cubense do not infect Cavendish banana
(B). Race 4 of Fusarium oxysporum f. sp. cubense infects Cavendish banana
(C). Race 4 Fusarium oxysporum f. sp. cubense is prevalent in India
(D). Race 1 Fusarium oxysporum f. sp. cubense infect Gros Michel banana
Choose the correct answer from the options given below:
(A). Race 1 of Fusarium oxysporum f. sp. cubense do not infect Cavendish banana
(B). Race 4 of Fusarium oxysporum f. sp. cubense infects Cavendish banana
(C). Race 4 Fusarium oxysporum f. sp. cubense is prevalent in India
(D). Race 1 Fusarium oxysporum f. sp. cubense infect Gros Michel banana
Choose the correct answer from the options given below:
Show Hint
Remember the history of Panama disease: Race 1 wiped out 'Gros Michel' (but spared 'Cavendish'), while the emerging Tropical Race 4 (TR4) infects 'Cavendish' and is present in India.
Updated On: Jul 31, 2026
- (A), (B), (C) only.
- (A), (B), (C), (D).
- (B), (A), (C) only.
- (C), (B), (D) only.
Show Solution
Verified By Collegedunia
The Correct Option is B
Solution and Explanation
Step 1: Understanding the Concept:
Panama disease (Fusarium wilt) is a devastating vascular disease of banana plants caused by the soil-borne fungus Fusarium oxysporum f. sp. cubense (Foc).
The pathogen population is classified into distinct physiological races based on their virulence on different banana cultivars.
Step 2: Detailed Explanation:
Let us evaluate each statement:
Statement (A) is correct: Race 1 of Foc destroyed the global 'Gros Michel' banana industry in the early-to-mid 20th century.
In response, the industry transitioned to 'Cavendish' cultivars, which possessed complete resistance to Race 1.
Statement (B) is correct: A highly virulent strain named Tropical Race 4 (TR4, or Race 4) emerged that can overcome the resistance of 'Cavendish' bananas, causing severe losses worldwide.
Statement (C) is correct: Tropical Race 4 (Foc TR4) has been detected in several major banana-growing states in India (such as Bihar, Uttar Pradesh, and Gujarat), where it poses a significant threat to national banana production.
Statement (D) is correct: Race 1 of Foc is the specific pathotype that infects and causes wilt in the 'Gros Michel' cultivar.
Since all four statements are correct, Option (B) is the correct choice.
Step 3: Final Answer:
Hence, the correct option is (B).
Panama disease (Fusarium wilt) is a devastating vascular disease of banana plants caused by the soil-borne fungus Fusarium oxysporum f. sp. cubense (Foc).
The pathogen population is classified into distinct physiological races based on their virulence on different banana cultivars.
Step 2: Detailed Explanation:
Let us evaluate each statement:
Statement (A) is correct: Race 1 of Foc destroyed the global 'Gros Michel' banana industry in the early-to-mid 20th century.
In response, the industry transitioned to 'Cavendish' cultivars, which possessed complete resistance to Race 1.
Statement (B) is correct: A highly virulent strain named Tropical Race 4 (TR4, or Race 4) emerged that can overcome the resistance of 'Cavendish' bananas, causing severe losses worldwide.
Statement (C) is correct: Tropical Race 4 (Foc TR4) has been detected in several major banana-growing states in India (such as Bihar, Uttar Pradesh, and Gujarat), where it poses a significant threat to national banana production.
Statement (D) is correct: Race 1 of Foc is the specific pathotype that infects and causes wilt in the 'Gros Michel' cultivar.
Since all four statements are correct, Option (B) is the correct choice.
Step 3: Final Answer:
Hence, the correct option is (B).
Was this answer helpful?
0
0
Top ICAR AIEEA Plant Sciences Questions
- Both plant and animal cells contain some small organelles called 'peroxisomes', which are dedicated to the metabolism of substances such as
- Chemicals that store energy for the majority of work within cells are called
- The longest phase during the eukaryotic cell cycle is
- The formula: [Sum of (Observed-Expected)$^2$/Expected] is also known as
- Human beings have a large-sized 'proteome'. The principal and more significant reason for this is-
View More Questions
Top ICAR AIEEA Mycology & Plant Pathology Questions
Arrange the following concepts/principles chronologically from the oldest to the latest.
• [(A).] Gene-for-gene hypothesis
• [(B).] Dominance hypothesis
• [(C).] Transforming principles
• [(D).] Concept of heterosis
Choose the correct answer from the options given below:
- Which of the following is NOT a feature of Oomycetes plant pathogens?
- Which of the following is one of the key adaptive features of fungal spores that aid them in long-distance transmission?
- Choose the correct combination of statements about Whiplash and Tinsel flagellum
(A). Whiplash flagellum is directed backward
(B). Tinsel flagellum is directed forward
(C). Whiplash and Tinsel flagellum can not coexist
(D). Whiplash and Tinsel flagellum may coexist - Here is combination of statements about various spores :
(A). Ascospore is an example of Meiospore
(B). Meiospores are a product of meiosis
(C). Basidiospore is an example of Meiospore
(D). Zoospores is an example of Meiospore
View More Questions
Top ICAR AIEEA Questions
- Which of the following statements is false?
- Which of the following is an example of an inventory?
- According to Adam Smith, productivity gains could be brought about through .
- The supply curve for an artificially scarce good is .
- Which of the following would not be considered an opportunity cost of paid employment?
View More Questions