Question

Which of the folllowing has an aerenchmya tissue

Answer 1

• Lysigenous aerenchyma is found in rice, wheat (Triticum aestivum), barley (Hordeum vulgare), and corn. Schizogenous aerenchyma is formed when intercellular gas spaces form within a tissue as it develops and without cell death taking place.
• Aerenchyma is the spaces or air channels in the leaves, stems and roots of some plants, which allows exchange of gases between the shoot and the root. The channels of air-filled cavities provide a low resistance internal pathway for the exchange of gases such as oxygen and ethylene between the plant above the water and the submerged tissues.
• Aerenchyma is the spaces or air channels in the leaves, stems and roots of some plants, which allows exchange of gases between the shoot and the root. The channels of air-filled cavities provide a low resistance internal pathway for the exchange of gases such as oxygen and ethylene between the plant above the water and the submerged tissues.Aerenchyma is also widespread in aquatic and wetland plants which must grow in hypoxic soils. So, aerenchyma is found in hydrophytes and not in lithophytes, sciophytes or xerophytes. 
• Aerenchyma is the spaces or air channels in the leaves, stems and roots of some plants, which allows exchange of gases between the shoot and the root. The channels of air-filled cavities provide a low resistance internal pathway for the exchange of gases such as oxygen and ethylene between the plant above the water and the submerged tissues.Aerenchyma is also widespread in aquatic and wetland plants which must grow in hypoxic soils. So, aerenchyma is found in hydrophytes and not in lithophytes, sciophytes or xerophytes. Thus, the correct answer is option A.

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