The development of distorted, swollen leaves that appear translucent and later turn necrotic is termed_________________?
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Answer: C. Vitrification
Explanation
Plant tissue culture environments can sometimes induce abnormal physiological growth responses. High humidity and restricted gas exchange inside culture vessels cause leaves to absorb excess water. This physiological malformation in tissue culture where leaves become swollen and translucent is vitrification. Vitrification is also frequently referred to as hyperhydricity in modern plant science literature. Affected plant tissues lose their normal cellular structure and fail to survive transfer to soil. Lowering agar concentrations and improving vessel ventilation helps prevent this culture disorder.
Commercial micropropagation laboratories monitor culture conditions carefully to prevent vitrification losses. Plant biotechnologists strive to produce healthy, normal microcuttings for commercial agriculture. Understanding physiological disorders improves the efficiency of mass-producing disease-free crop clones. Bacterial contamination causes cloudy media and tissue decay rather than translucent swollen leaves. Mosaicism describes mottled color patterns on leaves caused by viral infections or genetic mutations. Death of plant is a general outcome, whereas vitrification describes a specific physical symptom.
- Subject
- Agriculture
- Category
- Agriculture
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- Difficulty
- medium
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