Q.1
Match List-I with List-II:
Choose the correct answer from the options given below:
|
List - I
सूची - I
Fungicidal Biochemical Target
List-I (Fungicidal Biochemical Target
|
List - II
सूची - II
Representative Fungicide
List-II (Representative Fungicide
|
||
|---|---|---|---|
| A | $\beta$-tubulin in mitosis $\beta$-tubulin in mitosis | I | Benomyl (Benzimidazole) Benomyl (Benzimidazole) |
| B | Succinate dehydrogenase (Complex II) Succinate dehydrogenase (Complex II) | II | Carboxin (Oxathiin / SDHI) Carboxin (Oxathiin / SDHI) |
| C | Cytochrome $bc_1$ (Complex III, Qo site) Cytochrome $bc_1$ (Complex III, Qo site) | III | Picoxystrobin (Strobilurin / QoI) Picoxystrobin (Strobilurin / QoI) |
| D | C14-Demethylase in ergosterol biosynthesis C14-Demethylase in ergosterol biosynthesis | IV | Triadimefon / DMI Triazoles Triadimefon / DMI Triazoles |
- Target Enzymes and Sites of Agricultural Fungicides:
- $\beta$-Tubulin Assembly: Inhibited by benzimidazoles (Benomyl, Carbendazim), preventing mitotic spindle microtubule formation $\rightarrow$ (I)
- Succinate Dehydrogenase (Complex II): Inhibited by carboxamides / SDHIs (Carboxin, Boscalid) in mitochondrial respiration $\rightarrow$ (II)
- Cytochrome $bc_1$ Complex III ($Q_o$ site): Inhibited by strobilurins / QoIs (Picoxystrobin, Azoxystrobin) $\rightarrow$ (III)
- C14-Demethylase in Ergosterol Biosynthesis: Inhibited by DMIs (Triadimefon, Hexaconazole) $\rightarrow$ (IV)
- Systematic Match: (A)-(I), (B)-(II), (C)-(III), (D)-(IV) corresponds to Option 1.
Correct option: (1) (A)- (I), (B)- (W), (C)- (I), (D) = (V)
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