Coralloid roots, which host a symbiotic relationship between an algae

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Coralloid roots, which host a symbiotic relationship between an algae and host plant are features of

Options

(a) Cycas
(b) Pinus
(c) Pteris
(d) Funaria

Correct Answer:

Cycas

Explanation:

Mycorrhiza (Myco’s = fungus, rize = roots) is a symbiotic association between fungus and the roots of vascular plants. The fungus colonizes the roots of the host either infra or intercellularly. It helps in the nutrient absorption from soil for the plant, Mycorrhizal associations are present in conifers, i.e., Pinus, Cedrus, Abies and Picea. Coralloid roots is develop in Cycas. It is produced in clusters at the base of the stem and protrudes out over the ground. It is dichotomously branched and greenish in colour. IT contains algal zone in cortex. This algal zone contains blue green algae like Anabaena and Nostoc which grow in symbiotic association with coralloid roots.

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Question Type: Memory (964)
Difficulty Level: Easy (1008)
Topics: Plant and Animal Kingdom (295)
Subject: Biology (4253)

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