Which process is not directly affected by auxin? a. Apical...

Which process is not directly affected by auxin?
$a.$ Apical dominance
$b.$ Leaf abscission
$c.$ Synthesis of digestive enzymes by barley seeds
$d.$ Root initiation
$e .$ Parthenocarpic fruit development

Key Concepts

Auxin

Auxin is a fundamental plant hormone that regulates various aspects of plant growth and development. It plays a crucial role in processes such as cell elongation, apical dominance, root initiation, and fruit development by creating concentration gradients within the plant tissues which determine differential growth and developmental responses.

Apical Dominance

Apical dominance is the process by which the main, central stem of the plant suppresses the growth of lateral buds. This phenomenon is largely regulated by auxin, which is produced in the shoot apex and inhibits the outgrowth of side shoots to favor vertical growth.

Root Initiation

Root initiation refers to the formation of new roots and is a process heavily influenced by auxin. Auxin application can induce the development of adventitious roots, making it essential for vegetative propagation and overall plant stability.

Parthenocarpy

Parthenocarpic fruit development is the process in which fruits develop without fertilization. This process can be induced by auxin, which promotes fruit set and growth even in the absence of seeds, leading to the production of seedless fruits.

Gibberellins

Gibberellins are another class of plant hormones that control various growth and developmental processes, such as seed germination, stem elongation, and enzyme production in seeds. In the case of barley seeds, gibberellins are primarily responsible for stimulating the synthesis of digestive enzymes required for seed germination, distinguishing their role from that of auxin.

Please give Ace some feedback