CAJ | 학술논문

以江西东乡野生稻（ Oryza rufipogon）为材料，分别测定了苗期、分蘖期、孕穗期、抽穗期和成熟期根际微生物区系变化和根际土壤酶活性。结果表明，不同生长期东乡野生稻根际土壤微生物数量存在差异，呈现出不同的变化趋势，其中细菌占绝对优势，放线菌次之，真菌最少。不同生长期东乡野生稻根际微生物各生理类群数量均呈现出先升后降的趋势，各生理类群间存在差异，其中以氨化细菌为主，自生固氮菌和反硝化细菌次之，硝化细菌和亚硝化细菌最少。不同生长期东乡野生稻根际土壤蔗糖酶、磷酸单酯酶、脲酶、过氧化物酶活性存在差异。相关性分析表明，细菌与过氧化物酶活性呈极显著正相关；放线菌与过氧化物酶活性呈极显著正相关，与脲酶呈显著正相关；真菌与过氧化物酶活性呈极显著负相关。
이강서동향야생도（ Oryza rufipogon）위재료，분별측정료묘기、분얼기、잉수기、추수기화성숙기근제미생물구계변화화근제토양매활성。결과표명，불동생장기동향야생도근제토양미생물수량존재차이，정현출불동적변화추세，기중세균점절대우세，방선균차지，진균최소。불동생장기동향야생도근제미생물각생리류군수량균정현출선승후강적추세，각생리류군간존재차이，기중이안화세균위주，자생고담균화반초화세균차지，초화세균화아초화세균최소。불동생장기동향야생도근제토양자당매、린산단지매、뇨매、과양화물매활성존재차이。상관성분석표명，세균여과양화물매활성정겁현저정상관；방선균여과양화물매활성정겁현저정상관，여뇨매정현저정상관；진균여과양화물매활성정겁현저부상관。
This paper studies the dynamics of microbial flora and enzyme activity in the rhizophere of Dongxiang wild rice ( Oryza rufipogon) at different growth stages including the seedling stage,tillering stage, booting stage,heading stage and mature period. The results showed that microbial numbers in the rhizophere soil at different stages were different and bacteria were dominant,followed by actinomycetes,and fungi were the least . The microbial flora numbers at different growth stages presented the trend of increase at first and then de?crease.The ammonifier bacteria were dominant, followed by azotobacteria and denitrobacteria, and nitrifying bacteria and nitrite bacteria were the least. The activity levels of sucrase,phosphates,urease and perodoxidase in the rhizophere soil were different.The correlation coefficients between the activity of peroxidase and bacteri?a,actinomycetes were significant.Fungi had a significant negative correlation with peroxidase.