What are lateral roots?
Answers
Answer:
Lateral roots extend horizontally from the primary root (radicle) and serve to anchor the plant securely into the soil. This branching of roots also contributes to water uptake, and facilitates the extraction of nutrients required for the growth and development of the plant.
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Answer:
The lateral root arises at the exterior of the vascular cycliner. Since rice has polyarch root arrangement the lateral root arises opposite of the phloem. It begins with unequal, periclinal division of the the pericycle intial cells. Following these divisions are more periclinal and anticlinal divisions. As a result a lateral root promordium is formed. Meanwhile the endodermis is also dividing, which contributes some cell layers to the root primordium. These layers will become the protoderm, which is the future epidermis of the root.