Results 101 to 110 of about 12,786 (254)

Purification and characterization of ATPase fromNitrobacter winogradskyi [PDF]

FEMS Microbiology Letters, 1991
An ATPase was purified from Nitrobacter winogradskyi, and some of its molecular and enzymatic properties were determined. The enzyme was composed of two subunits of 64 and 59 kDa, respectively. The enzyme had its pH optimum at 9.5 and showed a specific activity of 7 units per mg protein.
T, Hara, A P, Villalobos, Y, Fukumori, T, Yamanaka   +3 more
openaire   +2 more sources

Effect of Dietary Protein Levels on Growth, Body Composition, and Haematology of Tilapia in Biofloc Without Solid Management System

Aquaculture, Fish and Fisheries, Volume 5, Issue 1, February 2025.
ABSTRACT This study investigated the effects of varying dietary protein levels on the performance of tilapia reared in biofloc culture system without solid management. Five experimental diets containing crude protein (CP) levels of 32, 28, 24, 20, and 16% were tested in a completely randomized design in triplicate.
Sudip Debnath, Md. Shahin Parvez, Sayma Sadia, K. M. Rakibur Hossain, Md. Nazmul Ahsan   +4 more
wiley   +1 more source

A relation between the temperature of atmosphere and the sludge in the wastewater treatment aeration tank [PDF]

Acta Montanistica Slovaca, 2006
Processes in the aeration tank remove nitrogen from organic substances from wastewater by using bacteria. Nitrification utilizes the metabolism of aerobic bacteria Nitrosomonas, Nitrococus, Nitrospira, Nitrobacter Nitrocystis and Nitrosobolus and the ...
Tomáš Bakalár, Eliška Horniaková
doaj  

tRNA signatures reveal polyphyletic origins of streamlined SAR11 genomes among the alphaproteobacteria [PDF]

, 2013
Phylogenomic analyses are subject to bias from compositional convergence and noise from horizontal gene transfer (HGT). Compositional convergence is a likely cause of controversy regarding phylogeny of the SAR11 group of Alphaproteobacteria that have ...
Amrine, Katherine C. H., Ardell, David H., Swingley, Wesley D.   +2 more
core   +4 more sources

Relationship of Atmospheric Nitrogen Deposition to Soil Nitrogen Cycling Along an Elevation Gradient in the Colorado Front Range

Earth's Future, Volume 13, Issue 1, January 2025.
Abstract Microbial processing of atmospheric nitrogen (N) deposition regulates the retention and mobilization of N in soils, with important implications for water quality. Understanding the links between N deposition, microbial communities, N transformations, and water quality is critical as N deposition shifts toward reduced N and remains persistently
Deborah A. Repert, Ruth C. Heindel, Sheila F. Murphy, Kaitlyn M. Jeanis   +3 more
wiley   +1 more source

Current Status of the Propagation of Basil in Aquaponic Systems: A Literature Review

Aquaculture Research, Volume 2025, Issue 1, 2025.
Basil (Ocimum sp.) is a commercially important herb that has been coupled with several aquatic organisms in aquaponic systems. The goal of this literature review was to aggregate the current knowledge on the status of basil production in aquaponic systems by identifying the different aquatic organisms cultured with basil and hydroponic subsystems ...
Aya S. Hussain, Paul B. Brown, Christyn Bailey   +2 more
wiley   +1 more source

Permeability of Nitrobacter agilis to Organic Compounds [PDF]

Journal of Bacteriology, 1965
Ida , S. (Cornell University, Ithaca, N.Y.), and M. Alexander . Permeability of Nitrobacter agilis to organic compounds. J. Bacteriol. 90: 151–156. 1965.—None of a variety of inorganic ions or organic compounds served as a sole energy source for the growth ...
S, Ida, M, Alexander
openaire   +2 more sources

Impact of Commercial Probiotics on Growth, Prophenoloxidase, Superoxide Dismutase, and Digestive Enzyme Activity in Macrobrachium rosenbergii Cultured at Different Stocking Densities

Aquaculture Research, Volume 2025, Issue 1, 2025.
An experiment using a 4 × 3 factorial design was conducted to evaluate the impact of three commercial probiotics and a control (no probiotic treatment) on the growth, digestive, and immune enzymatic indices of prawns (Macrobrachium rosenbergii) at three stocking densities (2, 4, and 6 m−2).
Shikder Saiful Islam, Ramisa Nowshin, Joyanta Bir, Sadia Samiha Sarmin, Md. Rofiqul Islam, Afrin Sultana, Jannatul Ferdose, Airin Sultana, Fatima Tuz Zohora, Momotaz Khanom, Md Rony Golder, Md. Fahad Al Zobayer, Kishur Kumar Das, Mst. Anika Khatun, Sayma Sadia, Khandaker Anisul Huq, Christyn Bailey   +16 more
wiley   +1 more source

BIẾN ĐỘNG MẬT ĐỘ VI KHUẨN HỮU ÍCH TRONG AO NUÔI TÔM SÚ (PENAEUS MONODON) THÂM CANH

Tạp chí Khoa học Đại học Cần Thơ, 2010
Tổng vi khuẩn, Vibrio và một số nhóm vi khuẩn hữu ích đã được xác định trong ao nuôi tôm thâm canh tại tỉnh Sóc Trăng. Phương pháp thu mẫu được áp dụng theo (Huy 2003 và Chinabut et al., 2003).
Phạm Thị Tuyết Ngân, Nguyễn Hữu Hiệp   +1 more
doaj  

Fortifikasi probiotik dalam pakan untuk meningkatkan pertumbuhan ikan gurami (Osphronemus gouramy)

Acta Aquatica, 2018
Abstrak Ikan gurami (Osphronemus gouramy) merupakan komoditas ikan air tawar yang bernilai ekonomis penting tetapi mempunyai kendala dalam budidaya, salahsatunya pertumbuhannya lambat.
Riri Ezraneti, Erlangga Erlangga, Erliza Marzuki   +2 more
doaj   +1 more source