Which of the following hormones is not stored in its endocrine-producing gland?

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#Question id: 29444

#Unit 6. System Physiology – Plant

Flavonoids, the prominent inducers of rhizobial nod gene expression, here  Flavonoid inducers Category along with their name and activity is mentioned

Flavonoid inducers Category	Name/activity
1. Flavone	A. Naringenin, a flavanone active on R. leguminosarum bv. viciae
2. Chalcone	B. Daidzein, an isofavone active on B. japonicum
3. Isoavone	C. 4,4’-Dihydroxy-2’- methoxychalcone, a chalcone inducer from Medicago
4. Flavanone	D. Luteolin, a flavone inducer from Medicago spp., active on S. meliloti

Match them correctly

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#Question id: 29445

#Unit 6. System Physiology – Plant

Nod factors predominantly have

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#Question id: 29446

#Unit 6. System Physiology – Plant

The binding of Nod factors to the Nod factor receptors (NFRs), which contain

TLS Online TPP Program

#Question id: 29447

#Unit 6. System Physiology – Plant

The interaction between NFR and SYMRK initiates

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#Question id: 29448

#Unit 6. System Physiology – Plant

Plant genes expressed early, or in the absence of bacterial infection, are termed

TLS Online TPP Program

#Question id: 29449

#Unit 6. System Physiology – Plant

It is very important to maintaining low O₂ concentrations in nodules, and it maintained by various ways

(a) With the help of parenchyma

(b) With the help of Lb

(c) Bacterial respiration as O₂ sink

(d) With the help of sclerenchyma

Which of the following is true regarding to maintain low O₂ concentrations