Q59: Match List-I with List-II:Choose the correct answer from the options... - Plant Metabolic Processes - Plant Physiology- ICAR JRF/SRF 2024 | Agrigyan

• nif K $

ightarrow$ (II) $\beta$-subunit of MoFe protein: Together with nifD ($\alpha$-subunit), forms the $\alpha_2\beta_2$ tetrameric dinitrogenase catalytic core.

• nif A $

ightarrow$ (IV) Positive regulator of nif and fix genes: Central transcriptional activator that binds upstream activator sequences (UAS) to activate $\sigma^{54}$-dependent nif promoters. - (C) nif S $ ightarrow$ (V) Cysteine desulfurase: Pyridoxal phosphate-dependent enzyme that mobilizes sulfur from L-cysteine for Fe-S cluster core assembly. - (D) nif B $ ightarrow$ (I) FeMo cofactor biosynthesis: Catalyzes the initial assembly of the Fe-S-C core (NifB-co) essential for FeMoco biosynthesis. - (E) nif H $ ightarrow$ (III) Fe protein of nitrogenase: Encodes the $\gamma_2$ homodimeric dinitrogenase reductase that transfers electrons to the MoFe protein.

Correct option: (4) (A) = (I), (B) - (IV), (C) - (V), (0) = (0), (E) =)