Question

Roots in Cycas that contain symbiotic cyanobacteria for nitrogen fixation is known as……………..

Answer 1

Hint: Carol roots contain symbiotic cyanobacteria (blue-green algae) that fix nitrogen and produce such beneficial amino acids as asparagine and citrulline in combination with root tissues.

Complete answer:
Coralloid root is found in Cycas. It is formed at the base of the stem in clusters and protrudes out over the soil. In hue, it is dichotomously branched and greenish-brown. In the cortex, it includes an algal region.
Cycas is a genus of plants belonging to Cycadophyta, a very old lineage, not closely related to palms, ferns, trees, or any other group of modern plants. They are evergreen perennials which in the Jurassic and Cretaceous periods when they were spread almost worldwide, achieved their full diversity. As the non-avian dinosaurs became extinct at the end of the Cretaceous, so did much of the cycas in the Northern Hemisphere.
The type genus is Cycas, and it is the only genus recognized in the Cycadaceae family. There are around 113 species recognized. The first cycad species to be described in Western literature was Cycas circinalis, a species endemic to India, and was a form of the generic name, Cycas. The most recognized species of Cycas is Cycas revoluta.

Additional information:
Any conifer in the Pinus genus of the Pinaceae family is a pine. In the subfamily Pinoideae, Pinus is the only genus. Along with 35 unresolved species and several more synonyms, the Plant List compiled by the Royal Botanic Gardens, Kew, and Missouri Botanical Garden accept 126 species names of pines as a present. The lumber derived from pine trees may also apply to pine; pine is one of the wood types used as lumber that is more commonly used.
A fern is a member of a group of vascular plants that have neither seeds nor flowers and reproduce through spores. By being vascular, i.e., having specialized tissues that conduct water and nutrients, and having life cycles in which the dominant phase is the sporophyte, they differ from mosses. Ferns have complex leaves called megaphylls, which are more difficult than clubmoss microphylls. Most ferns are ferns of leptosporangiate origin.
The tiny spherical seed or the seed-pod of the pod fruit Pisum sativum is most often the pea. There are many peas in every pod, which can be green or yellow. Botanically, as they contain seeds and grow from the ovary of a flower, pea pods are fruit. Other edible seeds from the Fabaceae, such as pigeon pea, cowpea, and seeds from several species of Lathyrus, are also used to identify the term.

So, the correct answer is ‘Coralloid root’.

Note:
At Cycas, the primary root remains. Tuberous, it becomes. Cycas produces coralloid roots. Short tufts and dichotomously branched roots are coralloid roots. In the inner part of their cortex, these roots contain an endophytic alga. Often in the brain, bacteria are also present.