scholarly journals Variation in mineral element composition of landrace taro (Colocasia esculenta) corms grown under dryland farming system in South Africa

Heliyon ◽  
2021 ◽  
Vol 7 (4) ◽  
pp. e06727
Author(s):  
Abe Shegro Gerrano ◽  
Isack Mathew ◽  
Admire IT. Shayanowako ◽  
Stephen Amoo ◽  
John Jason Mellem ◽  
...  
Keyword(s):  
South Africa ◽  
Farming System ◽  
Colocasia Esculenta ◽  
Element Composition ◽  
Mineral Element ◽  
Dryland Farming

Genotype and genotype × environment interaction effects on the grain yield performance of cowpea genotypes in dryland farming system in South Africa

Euphytica ◽  
2020 ◽  
Vol 216 (5) ◽  
Author(s):  
Abe Shegro Gerrano ◽  
Willem Sternberg Jansen van Rensburg ◽  
Isack Mathew ◽  
Admire I. T. Shayanowako ◽  
Michael Wolday Bairu ◽  
...  
Keyword(s):  
South Africa ◽  
Grain Yield ◽  
Farming System ◽  
Interaction Effects ◽  
Environment Interaction ◽  
Yield Performance ◽  
Genotype Environment Interaction ◽  
Dryland Farming

Effects of long-term (42 years) tillage sequence on soil chemical characteristics in a dryland farming system

2021 ◽  
Vol 212 ◽  
pp. 105064
Author(s):  
Flackson Tshuma ◽  
Francis Rayns ◽  
Johan Labuschagne ◽  
James Bennett ◽  
Pieter Andreas Swanepoel
Keyword(s):  
Farming System ◽  
Chemical Characteristics ◽  
Dryland Farming

scholarly journals Characterisation of Campylobacter spp. Isolated from Poultry in KwaZulu-Natal, South Africa

Antibiotics ◽  
2020 ◽  
Vol 9 (2) ◽  
pp. 42 ◽  
Author(s):  
Stephanie Pillay ◽  
Daniel G. Amoako ◽  
Akebe L. K. Abia ◽  
Anou M. Somboro ◽  
Christiana O. Shobo ◽  
...  
Keyword(s):  
South Africa ◽  
Antibiotic Resistance ◽  
Virulence Genes ◽  
Genetic Relatedness ◽  
Farming System ◽  
Campylobacter Coli ◽  
Kwazulu Natal ◽  
Ethical Approval ◽  
Gyra Mutation ◽  
Campylobacter Spp

This study investigated the antibiotic resistance, virulence profiles, and clonality of Campylobacter jejuni and Campylobacter coli isolated from an intensive poultry farming system in KwaZulu-Natal, South Africa. Following ethical approval, samples were collected over six weeks using the farm-to-fork approach. Campylobacter spp. were identified using culture, confirmed and differentiated to species level by PCR, and subjected to antibiotic susceptibility testing. Selected antibiotic resistance (and mutations) and virulence genes were screened by PCR and confirmed by DNA sequencing. Genetic relatedness amongst the isolates was ascertained using pulsed-field gel electrophoresis. In all, 105 isolates were confirmed as belonging to both Campylobacter coli (60; 57%) and C. jejuni (45; 43%). The highest resistance was recorded against erythromycin and clindamycin. The gyrA mutation, A20175C/A2074G point mutation, tet(O), and cmeB, all associated with antibiotic resistance, were detected. All the virulence genes (pldA, ciaB, cdtA, cdtB, cdtC, dnaJ, except for cadF) were also detected. Isolates were grouped into five pulsotypes displaying 85% similarity, irrespective of their resistance profiles. The numerous permutations of clonality, antibiotic resistance, and virulence profiles evident in Campylobacter spp. pose a challenge to food safety and necessitate a comprehensive understanding of the molecular epidemiology of this organism to decrease its spread in the food chain.

MINERAL ELEMENT COMPOSITION OF THE NATURAL VEGETATION ALONG A TRANSECT AT MAREOTIS, EGYPT

Soil Science ◽  
1977 ◽  
Vol 124 (1) ◽  
pp. 16-26 ◽  
Author(s):  
A. A. EL-GHONEMY ◽  
A. M. EL-GAZZAR ◽  
A. WALLACE ◽  
E. M. ROMNEY
Keyword(s):  
Element Composition ◽  
Natural Vegetation ◽  
Mineral Element
Sign in / Sign up

Export Citation Format

Share Document