Global Effect and Prevention of Emerging and Epidemic Pathogens: Cholera and Citrus Greening as Examples

2010 ◽  
pp. 3-11
Author(s):  
J. Glenn Morris
Keyword(s):  
Citrus Greening ◽  
Global Effect

2020–2021 Florida Citrus Production Guide: Huanglongbing (Citrus Greening)

EDIS ◽  
2020 ◽  
Author(s):  
Megan M. Dewdney ◽  
Tripti Vashisth ◽  
Lauren M. Diepenbrock
Keyword(s):  
Citrus Greening ◽  
Citrus Production ◽  
Florida Citrus

NA

scholarly journals Phosphorylation and an ATP-dependent process increase the dynamic exchange of H1 in chromatin

2002 ◽  
Vol 158 (7) ◽  
pp. 1161-1170 ◽  
Author(s):  
Yali Dou ◽  
Josephine Bowen ◽  
Yifan Liu ◽  
Martin A. Gorovsky
Keyword(s):  
Negative Charge ◽  
Histone H1 ◽  
Linker Histone ◽  
Global Effect ◽  
Dynamic Binding ◽  
Linker Histone H1 ◽  
Dependent Process ◽  
Dynamic Exchange

In Tetrahymena cells, phosphorylation of linker histone H1 regulates transcription of specific genes. Phosphorylation acts by creating a localized negative charge patch and phenocopies the loss of H1 from chromatin, suggesting that it affects transcription by regulating the dissociation of H1 from chromatin. To test this hypothesis, we used FRAP of GFP-tagged H1 to analyze the effects of mutations that either eliminate or mimic phosphorylation on the binding of H1 to chromatin both in vivo and in vitro. We demonstrate that phosphorylation can increase the rate of dissociation of H1 from chromatin, providing a mechanism by which it can affect H1 function in vivo. We also demonstrate a previously undescribed ATP-dependent process that has a global effect on the dynamic binding of linker histone to chromatin.

scholarly journals Global effect of COVID-19 pandemic on the rate of acute coronary syndrome admissions: a comprehensive review of published literature

Open Heart ◽  
2021 ◽  
Vol 8 (1) ◽  
pp. e001645
Author(s):  
Ayman Helal ◽  
Lamis Shahin ◽  
Mahmoud Abdelsalam ◽  
Mokhtar Ibrahim
Keyword(s):  
Acute Coronary Syndrome ◽  
Hospital Admissions ◽  
Absolute Risk ◽  
Pearson Correlation ◽  
Absolute Risk Reduction ◽  
Healthcare Systems ◽  
Global Effect ◽  
Coronary Syndrome ◽  
Admission Data ◽  
St Elevation

BackgroundThe COVID-19 pandemic has disrupted healthcare systems across the world. The rate of acute coronary syndrome (ACS) admissions during the pandemic has varied significantly.ObjectivesThe purpose of this study is to investigate the effect of the pandemic on ACS hospital admissions and to determine whether this is related to the number of COVID-19 cases in each country.MethodSearch engines including PubMed, Embase, Ovid and Google Scholar were searched from December 2019 to the 15 September 2020 to identify studies reporting ACS admission data during COVID-19 pandemic months in 2020 compared with 2019 admissions.ResultsA total of 40 studies were included in this multistudy analysis. They demonstrated a 28.1% reduction in the rate of admission with ACS during the COVID-19 pandemic period compared with the same period in 2019 (total of 28 613 patients in 2020 vs 39 225 in 2019). There was a significant correlation between the absolute risk reduction in the total number of ACS cases and the number of COVID-19 cases per 100 000 population (Pearson correlation=0.361 (p=0.028)). However, the correlation was not significant for each of the ACS subgroups: non-ST-elevation myocardial infarction (STEMI) (p=0.508), STEMI (p=0883) and unstable angina (p=0.175).ConclusionThere was a significant reduction in the rate of ACS admission during the COVID-19 pandemic period compared with the same period in 2019 with a significant correlation with COVID-19 prevalence.

Quantitative proteomic analysis of global effect of LLL12 on U87 cell's proteome: An insight into the molecular mechanism of LLL12

2015 ◽  
Vol 113 ◽  
pp. 127-142 ◽  
Author(s):  
Rekha Jain ◽  
Prajakta Kulkarni ◽  
Snigdha Dhali ◽  
Srikanth Rapole ◽  
Sanjeeva Srivastava
Keyword(s):  
Molecular Mechanism ◽  
Proteomic Analysis ◽  
Global Effect ◽  
Quantitative Proteomic Analysis ◽  
Insight Into

Insecticide sprays, natural enemy assemblages and predation on Asian citrus psyllid, Diaphorina citri (Hemiptera: Psyllidae)

2014 ◽  
Vol 104 (5) ◽  
pp. 576-585 ◽  
Author(s):  
C. Monzo ◽  
J.A. Qureshi ◽  
P.A. Stansly
Keyword(s):  
Natural Enemy ◽  
Early Spring ◽  
Citrus Greening ◽  
Asian Citrus Psyllid ◽  
Late Winter ◽  
Diaphorina Citri ◽  
Citrus Groves ◽  
Arthropod Fauna ◽  
Predator Exclusion ◽  
Insecticide Sprays

AbstractThe Asian citrus psyllid (ACP), Diaphorina citri Kuwayama is considered a key citrus pest due to its role as vector of ‘huanglongbing’ (HLB) or citrus greening, probably the most economically damaging disease of citrus. Insecticidal control of the vector is still considered a cornerstone of HLB management to prevent infection and to reduce reinoculation of infected trees. The severity of HLB has driven implementation of intensive insecticide programs against ACP with unknown side effects on beneficial arthropod fauna in citrus agroecosystems. We evaluated effects of calendar sprays directed against this pest on natural enemy assemblages and used exclusion to estimate mortality they imposed on ACP populations in citrus groves. Predator exclusion techniques were used on nascent colonies of D. citri in replicated large untreated and sprayed plots of citrus during the four major flushing periods over 2 years. Population of spiders, arboreal ants and ladybeetles were independently assessed. Monthly sprays of recommended insecticides for control of ACP, adversely affected natural enemy populations resulting in reduced predation on ACP immature stages, especially during the critical late winter/early spring flush. Consequently, projected growth rates of the ACP population were greatest where natural enemies had been adversely affected by insecticides. Whereas, this result does not obviate the need for insecticidal control of ACP, it does indicate that even a selective regimen of sprays can impose as yet undetermined costs in terms of reduced biological control of this and probably other citrus pests.

Trioza erytreae (African citrus psyllid).

2021 ◽  
Author(s):  
Esther Arengo
Keyword(s):  
Middle East ◽  
Citrus Greening ◽  
Damage Potential ◽  
Quarantine Pest ◽  
Mediterranean Countries ◽  
Significant Damage ◽  
The Family ◽  
Citrus Huanglongbing ◽  
African Form ◽  
Wild Hosts

Abstract The invasive African psyllid, Trioza erytrea, transmits the causal agent of the African form of citrus huanglongbing (greening) disease, Liberibacter africanum, a very destructive disease of citrus plants. It does this under natural conditions in Africa and the Middle East, and has been shown experimentally to transmit the Asian form, Liberibacter asiaticum. The psyllid itself severely distorts leaves, which become stunted and galled. T. erytreae affects species in the family Rutaceae, occurring on wild hosts as well as on Citrus species. T. erytreae is listed as an A1 quarantine pest by EPPO (OEPP/EPPO, 1988) and is also a quarantine pest for CPPC and OIRSA. The importation of plants for planting and cut branches of citrus from countries where either citrus greening bacterium or either of its vectors occur has been prohibited (OEPP/EPPO, 1990). T. erytreae occurs in Africa and parts of the Middle East but could probably establish and spread in Mediterranean countries without difficulty. Besides its role in citrus greening, the psyllid has itself significant damage potential.

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