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Soru

Zorluk: Çok zorPlant Science and Agricultural Technology

Match the physiological processes and agricultural biotechnology mechanisms listed in List-I with their corresponding biological functions or modes of action listed in List-II.

  • Glomalin production by Vesicular-Arbuscular Mycorrhizal (VAM) fungiSoil structure stabilization via insoluble glycoprotein secretion and enhanced insoluble phosphorus mobilization
  • Richmond-Lang effect mediated by CytokininsDelay of leaf senescence by maintaining protein synthesis and preventing chlorophyll degradation
  • Systemic Acquired Resistance (SAR) pathwayLong-distance signaling mediated by salicylic acid leading to systemic expression of Pathogenesis-Related (PR) proteins
  • RNA Interference (RNAi) technology in crop protectionSequence-specific degradation of essential target mRNA transcripts in pests using double-stranded RNA constructs

Cevap

Glomalin production by VAM fungi matches with soil structure stabilization and phosphorus mobilization; the Richmond-Lang effect matches with delay of leaf senescence by maintaining protein synthesis and preventing chlorophyll loss; Systemic Acquired Resistance (SAR) matches with long-distance salicylic acid signaling and PR protein expression; and RNA Interference (RNAi) technology matches with sequence-specific mRNA degradation in target pests.
Each plant process is paired precisely with its established bio-molecular mechanism: VAM glomalin secretion stabilizes soil aggregates and improves phosphorus availability; cytokinin action responsible for the Richmond-Lang effect prevents chlorophyll breakdown; Systemic Acquired Resistance relies on salicylic acid-mediated induction of PR proteins; and pest-targeted RNAi acts via sequence-specific destruction of target pest mRNA.

Adım Adım Çözüm

1
Identify the function of Vesicular-Arbuscular Mycorrhizal (VAM) fungi and glomalin in agricultural soil science.
Glomalin is a hydrophobic glycoprotein secreted by endomycorrhizal fungi (VAM) that promotes soil aggregate stability and assists in mobilizing immobile soil minerals, especially phosphorus.
Establishing the biochemical link between VAM fungi, glomalin secretion, and soil aggregate formation.
2
Analyze the plant physiological term 'Richmond-Lang effect'.
The Richmond-Lang effect specifically refers to cytokinin-induced preservation of chlorophyll content and inhibition of protein degradation, delaying leaf senescence.
Distinguishing hormone-specific physiological effects from general growth mechanisms.
3
Evaluate the mechanism of Systemic Acquired Resistance (SAR) in plant pathology.
SAR relies on endogenous salicylic acid accumulation following initial pathogen attack, leading to systemic synthesis of Pathogenesis-Related (PR) defense proteins throughout the plant.
Connecting plant immunity signaling pathways with systemic transcriptional activation.
4
Examine the mode of action of agricultural RNA Interference (RNAi) pest control.
RNAi technology uses engineered dsRNA sequences matching essential pest genes to cause gene silencing through targeted messenger RNA degradation.
Linking biotechnological gene expression tools to target-specific post-transcriptional silencing mechanisms.

Anahtar Kavram

Plant Physiological Signaling, Mycorrhizal Interactions, and Crop Biotechnology Applications
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Konular

Plant Science and Agricultural Technology

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