Acclimation of respiratory properties of leaves of Spinacia oleracea L., a sun species, and of Alocasia macrorrhiza (L.) G. Don., a shade species, to changes in growth irradiance

Ko Noguchi, Kintake Sonoike, Ichiro Terashima

研究成果: Article

34 引用 (Scopus)

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To clarify the way in which the light available for growth affects respiration in leaves of sun and shade plants, we examined the respiratory properties of mature leaves of Spinacia oleracea L., a sun species, and of Alocasia macrorrhiza (L.) G. Don., a shade species, that had been grown at various irradiances. In leaves of S. oleracea, the respiratory rates, on a dry mass basis, decreased with time during the night, and the higher was the growth irradiance during the day, the higher was the respiratory rate. The marked decreases in the respiratory rate during the night were accompanied by decreases in the concentration of carbohydrates in the leaves. By contrast, the respiratory rates of leaves of A. mecrorrhiza were virtually constant throughout the night and the absolute rates were lower than those of S. oleracea even though the absolute value of the concentration of carbohydrates and its decrease at night resembled to those in S. oleracea. The maximum activities of respiratory enzymes were also similar to those in S. oleracea. However, the leaves of A. macrorrhiza contained less soluble protein than those of S. oleracea. These results suggest that, in S. oleracea, the concentration of carbohydrates might determine the respiratory rate while such is not the case in A. macrorrhiza. The lower respiratory rates in A. macrorrhiza might be due to a lower demand for ATP.

元の言語English
ページ(範囲)377-384
ページ数8
ジャーナルPlant and Cell Physiology
37
発行部数3
DOI
出版物ステータスPublished - 1996 4
外部発表Yes

ASJC Scopus subject areas

  • Physiology
  • Plant Science
  • Cell Biology

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