Paddy System with a Hybrid Rice Enhances Cyanobacteria Nostoc and Increases N2 Fixation

• Published in: Pedosphere Vol. 29; no. 3; pp. 374 - 387
• Main Authors: MA, Jing, BEI, Qicheng, WANG, Xiaojie, LIU, Gang, CADISCH, Georg, LIN, Xingwu, ZHU, Jianguo, SUN, Xiaoli, XIE, Zubin
• Format: Journal Article
• Language: English
• Published: Beijing Elsevier Ltd 01.06.2019; Elsevier Science Ltd; State Key Laboratory of Soil and Sustainable Agriculture, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008 China; University of Chinese Academy of Sciences, Beijing 100049 China%State Key Laboratory of Soil and Sustainable Agriculture, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008 China%Institute of Agricultural Sciences in the Tropics(Hans-Ruthenberg-Institute), University of Hohenheim, Stuttgart 70593 Germany
• Subjects: 15N2 labelling; 16S rRNA gene; Abundance; Airtightness; Anabaena; biological nitrogen fixation; Communities; Cultivars; Cyanobacteria; Cylindrospermum; ecosystems; Fixation; Gene sequencing; genes; Growth chambers; Hybrid systems; hybrids; Inbreeding; Labeling; NifH gene; Nitrogen; Nitrogen fixation; nitrogen-fixing bacteria; Nitrogenation; Nostoc; Oryza sativa indica; Oryza sativa japonica; paddies; paddy soils; ribosomal RNA; Rice; Rice fields; rice variety; rRNA 16S; Soil fertility; Soil surfaces; Soils; stable isotopes; weeds; rice variety; biological nitrogen fixation; 15N2 labelling; nifH gene; 16S rRNA gene

Biological nitrogen (N) fixation (BNF) plays a significant role in maintaining soil fertility in paddy field ecosystems. Rice variety influences BNF, but how different rice varieties regulate BNF and associated diazotroph communities has not been quantified. Airtight, field-based 15N2-labelling grow...