Results 101 to 110 of about 2,168,705 (292)

Effects of different nitrogen treatments on the growth and nitrogen metabolism of Machilus thunbergii seedlings

Frontiers in Plant Science
IntroductionAs a native tree species in China, Machilus thunbergii is highly responsive to nitrogen fertilization. However, related studies are scarce.
Fenghou Shi, Haoyi Feng, Xiaojing Li, Xiaojing Li, Yuhui Zhang, Yanan Bai, Boqiang Tong, Yizeng Lu   +7 more
doaj   +1 more source

GRAZING INTENSITY AND SOIL NITROGEN ACCUMULATION

Proceedings of the New Zealand Grassland Association, 1985
The balance between the litter and animal excreta pathways was varied by imposing a range of sheep grazing intensities on a dryland ryegrass-white clover pasture for 3 years. In contrast to laxly grazed treatments, hard grazed treatments lost soil carbon and nitrogen.
openaire   +2 more sources

EFFECTS OF RISK ON OPTIMAL NITROGEN FERTILIZATION DATES IN WINTER WHEAT PRODUCTION AS AFFECTED BY DISEASE AND NITROGEN SOURCE [PDF]

Optimal fertilization dates were found for two nitrogen sources in the presence of two diseases for wheat farmers with different risk preferences. Risk was independent of fertilization date.
Roberts, Roland K., English, Burton C., Larson, James A., Howard, Donald D., Walters, Jeremy T.   +4 more
core  

Iso-osmotic regulation of nitrate accumulation in lettuce (Lactuca sativa L.) [PDF]

, 2010
Concerns about possible health hazards arising from human consumption of lettuce and other edible vegetable crops with high concentrations of nitrate have generated demands for a greater understanding of processes involved in its uptake and accumulation ...
Zhang, Kefeng, Kefeng Zhang, Edmondson, R. N., Mary K. Turner, Ian G. Burns, Rodney Edmondson, Burns, Ian G., Turner, Mary K.   +7 more
core   +1 more source

Characterization of the key membrane protein cytochrome Cyc2 from Ghiorsea bivora

FEBS Open Bio, EarlyView.
This study reports the first detailed biochemical analysis of Cyc2TAG1_1, a cytochrome protein involved in microbial iron oxidation. We produced and purified this enzyme in E. coli, then measured its iron‐oxidizing efficiency, and characterized its electrical and structural properties.
Josiane Azizi, Alain Dolla, Frauke Baymann, Celine Rommevaux, Latifa Elantak, Helene Gaussier, Matthieu Nouailler   +6 more
wiley   +1 more source

Biomass Production and Nitrogen Accumulation of Summer Cover Crop Mixtures Under Two Sowing Dates in a Cool Temperate Climate

Agronomy
Summer cover crops can improve soil fertility and contribute to nitrogen (N) supply in temperate cropping systems, yet the effects of mixture composition and sowing timing remain insufficiently documented.
Kristo Tikk, Liina Talgre, Karli Sepp, Liina Edesi, Karin Kauer, Viacheslav Eremeev, Merili Toom   +6 more
doaj   +1 more source

Fluorination: A strategy to tune the interactions of molecules and nanoscale systems with biological matter

FEBS Open Bio, EarlyView.
This minireview explores fluorination as a key strategy to optimize therapeutic molecules and nanocarriers. By incorporating different fluorinated motifs—from single atoms to linear and branched chains—drug delivery, cellular uptake, and colloidal stability can be improved and fine‐tuned.
Martina Beccalli, Beatrice Lucia Bona, Francesca Baldelli Bombelli   +2 more
wiley   +1 more source

The effects of substituting organic fertilizer for nitrogen fertilizer on seed cotton yield and soil enzyme activity under drip irrigation

Frontiers in Plant Science
IntroductionThe application of organic fertilizers can increase carbon and nitrogen sources in the soil. This could affect the quantity of microorganisms and the metabolism of nutrients in the soil, thereby influencing soil enzyme activity and cotton ...
Rui Zhou, Pingchuan Ma, Long Ma, Long Ma, Shenggao Song, Shuangqing Lv, Shuangqing Lv, Chunming Chi, Chunming Chi, Lili Yang, Lili Yang, Lili Yang   +11 more
doaj   +1 more source

Populus deltoides females are more selective in nitrogen assimilation than males under different nitrogen forms supply

, 2015
Female cuttings of Populus deltoides were sensitive to inorganic nitrogen forms and biased for NO (3) (-) -N, whereas males exhibited no obvious preference for nitrogen form in nitrogen fertilizations.
Zhao, HX (reprint author), Chinese Acad Sci, Key Lab Mt Surface Proc & Ecol Regulat, Inst Mt Hazards & Environm, Chengdu 610041, Peoples R China., Li, Junyu, Guo, Qingxue, Zhao, Hongxia, Dong, Tingfa   +4 more
core   +1 more source

Chronobiology of Cancer: How Aging Fuels Oncogenesis at the Molecular Level

Aging and Cancer, EarlyView.
This graphical abstract illustrates the key biological pathways linking aging with cancer development and progression. In the upper left, cumulative exposure to ultraviolet radiation, toxins, and reactive oxygen species (ROS) causes DNA damage and genomic instability, whereas age‐related decline in repair mechanisms, such as ATM/ATR, BER, and NER ...
Anu Singh, Aroonima Misra, Sufian Zaheer
wiley   +1 more source