BIOLOGY
HORMONES
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Auxins
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Cytokinins
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Ethylene
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Abscisic acid
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Gibberellins
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Detailed explanation-1: -However, abscisic acid (ABA) is the only hormone known to induce and maintain seed dormancy. ABA acts through the PYR/RCAR-PP2C-SnRK2 signaling cascade (5, 6).
Detailed explanation-2: -Abscisic acid (ABA) is a general plant-growth inhibitor. It induces dormancy and prevents seeds from germinating; causes abscission of leaves, fruits, and flowers; and causes stomata to close.
Detailed explanation-3: -Abscisic acid (ABA) is the sole plant hormone known to maintain seed dormancy; it acts through a gene expression network involving the transcription factor ABSCISIC ACID INSENSITIVE 3 (ABI3).
Detailed explanation-4: -Abstract. The addition of abscisic acid (ABA) to mature non-dormant seeds inhibits their germination. This effect of ABA might be related to its natural function as an endogenous inhibitor of precocious germination during seed formation.
Detailed explanation-5: -Gibberellins stimulate germination of seeds. Gibberellins break the stored food by stimulating the production of enzymes during germination and end seed dormancy.