scholarly journals Alleviating Nitrogen Limitation in Mediterranean Maquis Vegetation Leads to Ecological Degradation

2017 ◽  
Vol 28 (8) ◽  
pp. 2482-2492 ◽  
Author(s):  
Teresa Dias ◽  
Casparus J. Crous ◽  
Dario Liberati ◽  
Silvana Munzi ◽  
Catarina Gouveia ◽  
...  
Keyword(s):  
Nitrogen Limitation ◽  
Ecological Degradation ◽  
Mediterranean Maquis

Biophilia's Queer Remnants

2017 ◽  
Vol 46 (3-4) ◽  
pp. 18-23 ◽  
Author(s):  
Courtney O'Dell-Chaib
Keyword(s):  
Healthy Animal ◽  
Religion And Ecology ◽  
Evolutionary Biologist ◽  
Ecological Degradation ◽  
Biophilia Hypothesis ◽  
Ethical Investments ◽  
Affective Dimensions

Evolutionary biologist Edward O. Wilson’s biophilia hypothesis, that humans have a genetically influenced emotional affiliation with life and life-like processes, for some time has invigorated a prominent strain of scholarship within religion and ecology that taps into the affective dimensions of our evolutionary histories. Our biophilic tendencies coupled with the awe, wonder, and reverence evoked by these religiously resonant cosmologies, they argue, provide occasions for cultivating ethical investments rooted in genetic kinship. However, much of this work that adopts biophilia assumes a “healthy” animal-other and rarely affiliates with the ill, disabled, and mutated creatures impacted by ecological degradation. In conversation with Donovan Schaefer’s provocative new book Religious Affects: Animality, Evolution, and Power and his engagement with biophilia, this paper considers possibilities for addressing aversion to animals impacted by ecological collapse through Schaefer’s understanding of affects as not merely adaptive, but embedded within complex economies of embodiment and power.

scholarly journals Effect of nitrogen limitation on growth, biochemical composition, and cell ultrastructure of the microalga Picocystis salinarum

2021 ◽  
Author(s):  
Ronald Tarazona Delgado ◽  
Mayara dos Santos Guarieiro ◽  
Paulo Wagnner Antunes ◽  
Sérvio Túlio Cassini ◽  
Haydee Montoya Terreros ◽  
...  
Keyword(s):  
Biochemical Composition ◽  
Nitrogen Limitation ◽  
Cell Ultrastructure

scholarly journals Transcriptome Changes in Pseudomonas putida KT2440 during Medium-Chain-Length Polyhydroxyalkanoate Synthesis Induced by Nitrogen Limitation

2020 ◽  
Vol 22 (1) ◽  
pp. 152
Author(s):  
Dorota Dabrowska ◽  
Justyna Mozejko-Ciesielska ◽  
Tomasz Pokój ◽  
Slawomir Ciesielski
Keyword(s):  
Chain Length ◽  
Nitrogen Limitation ◽  
Stringent Response ◽  
Wild Type ◽  
Pseudomonas Putida Kt2440 ◽  
Medium Chain ◽  
Environmental Stimuli ◽  
Medium Chain Length ◽  
In The Wild

Pseudomonas putida’s versatility and metabolic flexibility make it an ideal biotechnological platform for producing valuable chemicals, such as medium-chain-length polyhydroxyalkanoates (mcl-PHAs), which are considered the next generation bioplastics. This bacterium responds to environmental stimuli by rearranging its metabolism to improve its fitness and increase its chances of survival in harsh environments. Mcl-PHAs play an important role in central metabolism, serving as a reservoir of carbon and energy. Due to the complexity of mcl-PHAs’ metabolism, the manner in which P. putida changes its transcriptome to favor mcl-PHA synthesis in response to environmental stimuli remains unclear. Therefore, our objective was to investigate how the P. putida KT2440 wild type and mutants adjust their transcriptomes to synthesize mcl-PHAs in response to nitrogen limitation when supplied with sodium gluconate as an external carbon source. We found that, under nitrogen limitation, mcl-PHA accumulation is significantly lower in the mutant deficient in the stringent response than in the wild type or the rpoN mutant. Transcriptome analysis revealed that, under N-limiting conditions, 24 genes were downregulated and 21 were upregulated that were common to all three strains. Additionally, potential regulators of these genes were identified: the global anaerobic regulator (Anr, consisting of FnrA, Fnrb, and FnrC), NorR, NasT, the sigma54-dependent transcriptional regulator, and the dual component NtrB/NtrC regulator all appear to play important roles in transcriptome rearrangement under N-limiting conditions. The role of these regulators in mcl-PHA synthesis is discussed.

Apparent nitrogen limitation of Robusta coffee yields in young agroforestry systems

2021 ◽  
Author(s):  
Eduardo Chavez ◽  
Jordon Wade ◽  
Elizabeth A. Miernicki ◽  
Malena Torres ◽  
Erik C. Stanek ◽  
...  
Keyword(s):  
Nitrogen Limitation ◽  
Agroforestry Systems ◽  
Robusta Coffee
Sign in / Sign up

Export Citation Format

Share Document