FURTHER EVIDENCE FOR GASEOUS CO_2 TRANSPORT IN RELATION TO ROOT UPTAKE OF CO_2 IN RICE PLANT

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概要

• 論文の詳細を見る

• In order to make clear the mechanism of transport of CO_2 absorbed by rice roots, several experiments were carried out. The amount of CO_2 derived from root uptake in rice seedings was significantly larger than that in wheat seedlings. As CO_2 concentration in the culture solution increased, the predominate uptake by rice roots became more obvious. 2,4-Dinitrophenol and sodium azide constantly inhibited park CO_2 fixation in roots of rice and wheat, while their effects on the CO_2 transport to the shoots were not significant. In the case of mannitol treatment, CO_2 transport from roots to shoots in wheat decreased by 50% , while no strong inhibition was observed in rice. CO_2 gas analysis in roots indicated that the CO_2 enrichment in the culture solution led to the increase of CO_2 gas content in rice roots. The volume of the gas phase in rice roots was ten times as large as that in wheat roots and CO_2 gas contents in rice roots were by far higher than those in wheat roots. These results as well as other experimental data may suggest that a large part of CO_2 absorbed by rice roots moves to the shoots in the gaseous state. Further, it can be postulated that the principal gasification site in rice plants is located in the root cortex where lysigenous intercellular spaces are present.

• 一般社団法人日本土壌肥料学会の論文

著者

• Tensho K

  Radioisotope And Nuclear Engineering School Japan Atdmic Energy Research Institute

• Tensho Kiyoshi

  Radio-isotope School Japan Atomic Energy Research Institute

• HIGUCHI Toshihiko

  Laboratory of Agriculture, Faculty of Education, Tokyo Gakugei University

• YODA Karin

  Radioisotope and Nuclear Engineering School, Japan Atdmic Energy Research Institute

• Higuchi Toshihiko

  Laboratory Of Agriculture Faculty Of Education Tokyo Gakugei University

• Yoda Karin

  Radioisotope And Nuclear Engineering School Japan Atdmic Energy Research Institute

関連論文

• TTC REDUCTION IN SUBMERGED SOILS
• TRACER STUDY ON PREFERENTIAL UPTAKE OF GERMANIUM BY RICE PLANT
• FURTHER STUDY ON IODINE TOXICITY IN RELATION TO "RECLAMATION AKAGARE" DISEASE OF LOWLAND RICE
• RADIO-IODINE UPTAKE BY PLANT FROM SOIL WITH SPECIAL REFERENCE TO LOWLAND RICE
• FURTHER EVIDENCE FOR GASEOUS CO_2 TRANSPORT IN RELATION TO ROOT UPTAKE OF CO_2 IN RICE PLANT
• VARIABLE BROMINE CONTENT IN SOIL : PLANT AND MILK
• GASEOUS CO_2 TRANSPORT THROUGH THE AERENCHYMA AND INTERCELLULAR SPACES IN RELATION TO THE UPTAKE OF CO_2 BY RICE ROOTS

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