Stem hypertrophic lenticels and secondary aerenchyma enable oxygen transport to roots of soybean in flooded soil

• Published in: Annals of botany Vol. 106; no. 2; pp. 277 - 284
• Main Authors: Shimamura, Satoshi, Yamamoto, Ryo, Nakamura, Takuji, Shimada, Shinji, Komatsu, Setsuko
• Format: Journal Article
• Language: English
• Published: England Oxford University Press 01.08.2010
• Subjects: Aerenchyma; air; Biological Transport; Flooded soils; flooding; Floods; Glycine max - metabolism; hypertrophic lenticels; labeling techniques; Lenticels; metabolism; Microelectrodes; Original; Oxygen; Oxygen Isotopes; Oxygen Isotopes - metabolism; oxygen transport; Plant Roots; Plant Roots - metabolism; Plant Stems; Plant Stems - metabolism; Plants; root aeration; roots; sandy soils; shoots; Soil; Soil flooding; Soil water; soil waterlogging; soybean (Glycine max); Soybeans; stele; stems; submergence; Surface areas; surface water

BACKGROUND AND AIMS: Aerenchyma provides a low-resistance O₂ transport pathway that enhances plant survival during soil flooding. When in flooded soil, soybean produces aerenchyma and hypertrophic stem lenticels. The aims of this study were to investigate O₂ dynamics in stem aerenchyma and evaluate...