SULFUR MINERALIZATION IN RHIZOSPHERE OF LOWLAND RICE
スポンサーリンク
概要
- 論文の詳細を見る
Sulfur transformation in rice rhizosphere was investigated. Soil enzyme arylsulfatase in rhizosphere and non-rhizosphere soil, which is responsible for mineralization of organic sulfur to sulfate sulfur, was studied. The Michaelis constants of arylsulfatase from Maahas clay and Pila clay loam were 3.04×10^<-4> M and 3.97×10^<-4>M, respectively. The arylsulfatase of rhizosphere soil showed higher activity than that of non-rhizosphere soil. Application of sulfate had no marked effect on the enzyme activity either in rhizosphere or non-rhizosphere soil under the submerged condition. This indicates that arylsulfatase activity under the submerged condition is not inhibited by application of sulfate. The amount of HI-reducible sulfur in the rhizosphere and non-rhizosphere soil increased with time. However, rhizosphere soil had a higher amount of HI-reducible sulfur than did non-rhizosphere. The difference in arylsulfatase activity between the rhizosphere and non-rhizosphere soil was not directly associated with the number of sulfur-reducing and -oxidizing bacteria.
- 社団法人日本土壌肥料学会の論文
著者
-
Yoshida Tomio
Institute Of Applied Biochetnistry University Of Tsukuba
-
Han Kang
College Of Agriculture Jeonbug National University
-
Yoshida Tomio
Institute Of Applied Biochemistry The University Of Tsukuba
関連論文
- Variation in Natural Abundance of ^N among Plant Parts and in ^N/^N Fractionation during N_2 Fixation in the Legume-Rhizobia Symbiotic System
- Phenylalanine Ammonia-Lyase Genes from Pisum sativum : Structure, Organ-Specific Expression and Regulation by Fungal Elicitor and Suppressor : GENE STRUCTURE AND EXPRESSION
- Isolation and Characterization of Double-Stranded RNAs from the Pea Pathogen, Mycosphaerella pinodes
- dad-1, A Putative Programmed Cell Death Suppressor Gene in Rice
- In Situ MEASUREMENT OF SOIL RESPIRATION RATE BY A DYNAMIC METHOD
- FATE OF NITROGEN IN SOILS PLANTED TO SOYBEAN CROPS
- ELECTRON MICROSCOPIC STUDY OF ASSOCIATIVE N_2-FIXING BACTERIA IN ROOTS OF RICE SEEDLINGS
- SULFUR MINERALIZATION IN RHIZOSPHERE OF LOWLAND RICE
- NITROGEN FIXATION AND DENITRIFICATION IN THE ROOTS OF FLOODED CROPS
- ANALYSIS OF THE BEHAVIOR OF Rhizobium INOCULUM USING MARKED STRAIN IN THE RHIZOSPHERE OF SOYBEANS
- ATMOSPHERIC DINITROGEN FIXATION IN THE FLOODED RICE RHIZOSPHERE AS DETERMINED BY THE N-15 ISOTOPE TECHNIQUE