• Cyclitol metabolism is a central feature of Burkholderia leaf symbionts 

  Danneels, Bram; Blignaut, Monique; Marti, Guillaume; Sieber, Simon; Vandamme, Peter; Meyer, Marion; Carlier, Aurelien (Wiley, 2023-02)

  The symbioses between plants of the Rubiaceae and Primulaceae families with Burkholderia bacteria represent unique and intimate plant–bacterial relationships. Many of these interactions have been identified through ...
• Calpurnia aurea (Aiton) benth extracts reduce quorum sensing controlled virulence factors in Pseudomonas aeruginosa 

  Cosa, Sekelwa; Rakoma, Jostina R.; Yusuf, Abdullahi Ahmed; Tshikalange, Thilivhali Emmanuel (MDPI Publishing, 2020-05-13)

  Pseudomonas aeruginosa is the causative agent of several life-threatening human infections. Like many other pathogens, P. aeruginosa exhibits quorum sensing (QS) controlled virulence factors such as biofilm during disease ...
• Towards developing a metabolic-marker based predictive model for Phytophthora nicotianae tolerance in citrus rootstocks 

  Sakupwanya, Masiyiwa Ngoni; Labuschagne, Nico; Loots, Mattheus Theodor; Apostolides, Zeno (Springer, 2018-07)

  Root rot of citrus trees caused by Phytophthora nicotianae is responsible for severe economic losses in citriculture. Use of resistant rootstocks is an effective method of managing this problem, however, breeding and ...
• Dung beetle activity improves herbaceous plant growth and soil properties on confinements simulating reclaimed mined land in South Africa 

  Badenhorst, Jessica; Dabrowski, Jacqueline; Scholtz, Clarke H.; Truter, Wayne Frederick (Elsevier, 2018-12)

  Mining activities contribute greatly to economic growth and development in South Africa. However, post-mining soils have limited land-use potential due to low fertility, deficiency in organic matter content and poor physical, ...
• Effect of thyme oil vapours exposure on phenylalanine ammonia-lyase (PAL) and lipoxygenase (LOX) genes expression, and control of anthracnose in ‘Hass’ and ‘Ryan’ avocado fruit 

  Bill, Malick; Korsten, Lise; Remize, Fabienne; Glowacz, Marcin; Sivakumar, Dharini (Elsevier, 2017-10)

  The effect of thyme oil (96 μL L−1) vapours on the expression of phenylalanine ammonia-lyase (PAL) and lipoxygenase (LOX) genes, and control of anthracnose was investigated in naturally infected ‘Hass’ and ‘Ryan’ avocado ...
• Amorfrutin-type phytocannabinoids from Helichrysum umbraculigerum 

  Pollastro, Federica; De Petrocellis, Luciano; Schiano-Moriello, Aniello; Chianese, Giuseppina; Heyman, Heino Martin; Appendino, Giovanni; Taglialatela-Scafati, Orazio (Elsevier, 2017-11)

  Helichrysum umbraculigerum Less. has been reported to be a prolific producer of phytocannabinoids from the alkyl-, aralkyl-, normal-, and abnormal types. Investigation of an acetone extract from the aerial parts of the ...
• Phylogenetic regionalization of marine plants reveals close evolutionary affinities among disjunct temperate assemblages 

  Daru, Barnabas H.; Holt, Ben G.; Lessard, Jean-Philippe; Yessoufou, Kowiyou; Davies, T. Jonathan (Elsevier, 2017-09)

  While our knowledge of species distributions and diversity in the terrestrial biosphere has increased sharply over the last decades, we lack equivalent knowledge of the marine world. Here, we use the phylogenetic tree of ...
• Integrating biogeography, threat and evolutionary data to explore extinction crisis in the taxonomic group of cycads 

  Yessoufou, Kowiyou; Daru, Barnabas H.; Tafirei, Respinah; Elansary, Hosam O.; Rampedi, Isaac (Wiley Open Access, 2017)

  Will the ongoing extinction crisis cause a severe loss of evolutionary information accumulated over millions of years on the tree of life? This question has been largely explored, particularly for vertebrates and ...
• Evaluation of plant-produced Clostridium perfringens type D epsilon toxoid in a vaccine against enterotoxaemia in sheep 

  Mokoena, Tinyiko; Chakauya, Ereck; Crampton, Michael; Weyers, Boet; Tselanyane, Malefa; Tsekoa, Tsepo; Chikwamba, Rachel (AOSIS OpenJournals, 2017-04-25)

  Enterotoxaemia (pulpy kidney) is a common bacterial disease of sheep caused by Clostridium perfringens type D epsilon toxin. It has mortality rates of up to 30% in non-vaccinated animals. Current vaccines from whole cell ...
• Aloe × Inopinata Gideon F.SM., N.R.Crouch & Oosth., (Asphodelaceae) [Aloe arborescens Mill. × Aloe chortolirioides A.Berger Var. Chortolirioides] : a nothospecies from the Barberton Centre of Endemism, Eastern South Africa 

  Smith, Gideon F.; Figueiredo, Estrela; Crouch, Neil R.; Oosthuizen, Delia; Klopper, Ronell Renett (Cactus and Succulent Society of America, 2016)

  The natural hybrid between Aloe arborescens Mill. and A. chortolirioides A.Berger var. chortolirioides (Asphodelaceae) is here formally described as a nothospecies, A. ×inopinata Gideon F.Sm., N.R.Crouch & Oosth. The ...
• Testing the reliability of standard and complementary DNA barcodes for the monocot subfamily Alooideae from South Africa 

  Daru, Barnabas H.; Van der Bank, Micelle; Bello, Abubakar; Yessoufou, Kowiyou (NRC Research Press, 2017-04)

  Although a standard DNA barcode has been identified for plants, it does not always provide species-level specimen identifications for investigating important ecological questions. In this study, we assessed the species-level ...
• Effect of postharvest practices on the culturable filamentous fungi and yeast microbiota associated wit the pear carpoplane 

  Volschenk, Quinton; Du Plessis, Erika Margarete; Duvenage, Francois J.; Korsten, Lise (Elsevier, 2016-08)

  Information regarding the filamentous fungi and yeast microbiota on pear surfaces is limited when compared to other fruits such as grapes and apples. The effect of commercial postharvest practices on pear fruit surface ...
• Antimicrobial resistance profiles of Salmonella spp. from agricultural environments in fruit production systems 

  Gomba, Annancietar; Chidamba, Lizyben; Korsten, Lise (Mary Ann Liebert, 2016-09)

  Foodborne disease outbreaks involving fresh produce have increased in recent years. The risk of infection from contaminated food is worsened by the increased prevalence of antibiotic-resistant strains. This study evaluated ...
• Systems genetics reveals a transcriptional network associated with susceptibility in the maize-gray leaf spot pathosystem 

  Christie, Nanette; Myburg, Alexander Andrew; Joubert, Fourie; Murray, Shane L.; Carstens, Maryke; Lin, Yao-Cheng; Meyer, Jacqueline; Crampton, Bridget Genevieve; Christensen, Shawn A.; Ntuli, Jean F.; Wighard, Sara S.; Van de Peer, Yves; Berger, David Kenneth (Wiley, 2017-02)

  We used a systems genetics approach to elucidate molecular mechanisms of maize responses to gray leaf spot (GLS) disease, caused by Cercospora zeina, a threat to maize production globally. Expression analysis of earleaf ...
• Spiny plants, mammal browsers, and the origin of African savannas 

  Charles-Dominique, Tristan; Davies, T. Jonathan; Hempson, Gareth P.; Bezeng, Bezeng S.; Daru, Barnabas H.; Kabongo, Ronny M.; Maurin, Olivier; Muasya, A. Muthama; Van der Bank, Michelle; Bond, William J. (National Academy of Sciences, 2016-09)

  Savannas first began to spread across Africa during the Miocene. A major hypothesis for explaining this vegetation change is the increase in C4 grasses, promoting fire. We investigated whether mammals could also have ...
• Taxonomic notes on Acanthopsis Harv. (Acanthaceae, tribe Acantheae) : the group with trifid bracts 

  Steyn, Hester Maria; Van Wyk, Abraham Erasmus (Braam) (Magnolia Press, 2017-02-10)

  In the southern African genus Acanthopsis, the morphology of the bracts is taxonomically useful at the species level. This contribution focuses on the taxonomy and conservation status of those members of the genus ...
• August Wulfhorst (1861-1936) and his overlooked contributions on the flora of Angola 

  Figueiredo, Estrela; Smith, G.F. (Gideon Francois), 1959-; Nyffeler, Reto (The Conservatory and Botanical Garden of the City of Geneva (CJBG), 2013-07-12)

  August Wulfhorst (1861-1936), a German missionary attached to the Rheinische Missionsgesellschaft, collected material in omupanda (Amboland, Uukuanyama), which is located in present-day Angola. In the past, botanical ...
• Phenolic content as an indicator of tolerance of cowpea seedlings to Sclerotium rolfsii 

  Adandonon, Appolinaire; Regnier, Thierry; Aveling, T.A.S. (Terry) (Springer, 2017-10)

  The role of phenolics in plant tolerance to pathogen infection is well documented. The objective of the present preliminary investigation was to study phenolic metabolites involved in the tolerance or susceptibility of ...
• A new antifungal eudesmanolide glycoside isolated from Sphaeranthus indicus Linn. (Family Compositae) 

  Mishra, Bhuwan B.; Kishore, Navneet; Tiwari, Vinod K. (Taylor and Francis, 2016-03)

  A new antifungal eudesmanolide glycoside 11,13-dihydro-3-O-(β-digitoxopyranose)-7α- hydroxy eudasman-6,12-olide (2) in addition to known compounds 1 and 3, has been isolated from Sphaeranthus indicus Linn. Its structure ...
• A Eucalyptus bacterial wilt isolate from South Africa is pathogenic on Arabidopsis and manipulates host defences 

  Naidoo, Sanushka; Fouche-Weich, Joanne; Law, P.; Denby, K.J.; Marco, Y.; Berger, David Kenneth (Wiley, 2011-04)

  Ralstonia solanacearum, the causal agent of bacterial wilt, has been reported from Eucalyptus plantations in at least three countries in Africa. The lack of genomics resources in Eucalyptus species led us to develop and ...

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