نتایج جستجو برای: soil microorganisms

تعداد نتایج: 215830  

Journal: :Journal of environmental sciences 2010
Juanli Yun Anzhou Ma Yaoming Li Guoqiang Zhuang Yanfen Wang Hongxun Zhang

Zoige wetland is one of the most important methane emission centers in China. The oxidation of methane in the wetland affects global warming, soil ecology and atmospheric chemistry. Despite their global significance, microorganisms that consume methane in Zoige wetland remain poorly characterized. In this study, we investigated methanotrophs diversity in soil samples from both anaerobic site an...

2015
Hélène Morlon Timothy K. O'Connor Jessica A. Bryant Louise K. Charkoudian Kathryn M. Docherty Evan Jones Steven W. Kembel Jessica L. Green Brendan J. M. Bohannan Hauke Smidt

Understanding patterns in the distribution and abundance of functional traits across a landscape is of fundamental importance to ecology. Mapping these distributions is particularly challenging for species-rich groups with sparse trait measurement coverage, such as flowering plants, insects, and microorganisms. Here, we use likelihood-based character reconstruction to infer and analyze the spat...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2016
Michaeline B Nelson Adam C Martiny Jennifer B H Martiny

Microorganisms drive much of the Earth's nitrogen (N) cycle, but we still lack a global overview of the abundance and composition of the microorganisms carrying out soil N processes. To address this gap, we characterized the biogeography of microbial N traits, defined as eight N-cycling pathways, using publically available soil metagenomes. The relative frequency of N pathways varied consistent...

2010
Camila O. Martinez Celia Maria M. S. Silva Elisabeth F. Fay Rosangela B. Abakerli Aline H. N. Maia Lucia R. Durrant

Sulfentrazone is amongst the most widely used herbicides for treating the main crops in the State of São Paulo, Brazil, but few studies are available on the biotransformation of this compound in Brazilian soils. Soil samples of Rhodic Hapludox soil were supplemented with sulfentrazone (0.7 µg active ingredient (a.i.) g(-1) soil) and maintained at 27°C. The soil moisture content was corrected to...

2016
Jiling Cao Youzhi Feng Xiangui Lin Junhua Wang

As a crucial reciprocal partner, arbuscular mycorrhizal fungi (AMF) can alleviate the negative effects of a variety of pollutants on their hosts and soil microbes. In our previous studies, such characteristics of AMF on plant growth were documented in response to metal engineered nanoparticle (ENP) treatments. However, the role of AMF in influencing ENP effects on soil microbes remains a matter...

Journal: :بوم شناسی کشاورزی 0
علی بهشتی آل آقا فائز رئیسی احمد گلچین

land use change of forest ecosystems in northern iran changes the soil quality of paresar (gilan province) and gorgan (gorgan province) regions. in order to study changes in some biological soil quality indices due to land use change from forest to cultivated lands, composite soil samples from two depths (0-20 and 20-40 cm) were taken from paresar and gorgan regions and urease, alkaline and aci...

2010
Chi-Chu Lo Shu-Chuan Chen Chien-Ju Lin Yi-Chien Huang Shyi-Dong Yeh

Papaya ringspot virus (PRSV) is the most destructive disease of papaya (Carica papaya L.) in Taiwan, and transgenic papaya resistant to PRSV and PLDMV (papaya leaf distortion mosaic virus) were developed in Taiwan. Horizontal gene transformation (HGT) of kanamycin resistant gene nptII from transgenic papaya, the persistence of transgenic genes in soil samples, and the influence of transgenic pa...

2017
Hongchun Zhang Rui Wang Shu Chen Gaofu Qi Zhili He Xiuyun Zhao

Soil degradation is a serious global problem, but little is known about how soil microbial communities respond to soil degradation as well as their feedback to ecosystem functioning. In this study, we found the microbial community composition, structure and functional potential significantly altered in the degraded soils with bacterial wilt (termed as degraded soils). Compared with healthy soil...

2015
M. M. Sena H. Tokeshi

One of the major interests in soil analysis is the integrated evaluation of soil properties, which might be indicators of soil quality. Unsupervised methods of multivariate statistics are powerful tools for this integrated assessment and can help soil researchers to extract much more information from their data. A multivariate study was carried out in three farms from Guaı́ra, State of São Paulo...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید