Home » Advanced Botany » Plant Kingdom » Question
  1. Besides paddy fields cyanobacteria are also found inside vegetative part of :
    1. Cycas
    2. Equisetum
    3. Psilotum
    4. Pinus
Correct Option: A

In Cycas specialised root called coralloid roots are associated with N2 – fixing cyanobacteria either Nostoc or Anabaena. Coralloid roots lie near the soil surface. They are irregular and often dichotomously branched. Root hair and root cap are absent in these roots.



Your comments will be displayed only after manual approval.