Photoinduced flowering was hypothesis to be because of
(1) Vemalin
(2) Florigen
(3) Ethylene
4)A female hormone
Answers
Answer:
Option B. Florigen is correct option
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Answer:
Concept:
The class of plants known as flowering plants, or angiosperms, are those that produce both flowers and fruits. The name "angiosperm," which refers to plants that generate their seeds encased within a fruit, is derived from the Greek terms angeion ('container, vessel,') and sperma ('seed'). With 64 orders, 416 families, roughly 13,000 identified genera, and 300,000 known species, they are by far the most varied group of land plants. Magnoliophyta was the previous name for angiosperms. Angiosperms are plants that produce seeds, much like gymnosperms do. They differ from gymnosperms in that they produce fruits that contain seeds and have flowers as well as endosperm in their seeds.
Given:
It was proposed that photoinduced flowering occurred as a result of
(1) Vemalin
(2) Florigen
(3) Ethylene
(4) female hormone
Find:
find the right response to the provided question's inquiry.
Answer:
The correct answer is option(2) Florigen
The hormone-like molecule called florigen is thought to be in charge of regulating and/or initiating plant flowering. The shoot apical meristem of buds and developing tips is where florigen activates after being created in the leaves. It even works across species and is known to be graft-transmissible. However, despite being sought after since the 1930s, florigen's exact makeup is still up for debate. In seed plants, the onset of flowering signifies the change from vegetative to reproductive growth. As a result, it is a significant moment in the life of these plants, made all the more significant by the odd relationship between vegetative and reproductive growth in seed plants, which is itself a result of the physical makeup of the flower. Flowers are modified shoots, and the modified shoot meristems that create them are known as floral primordia. However, once a meristem has been identified as a flower primordium, it is typically unable to switch back to vegetative growth, with the possible exception of the very first phases. In certain ways, vegetative growth and reproductive development in seed plants are mutually exclusive; the beginning of a flower signifies the death of a particular meristem. Understanding the elements that lead a branch meristem to develop into a flower primordium and how they carry out their action is the main challenge of the physiology of flower initiation.
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