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Phytophthora palmivora is an Oomycete pathogen widespread in tropical and subtropical regions, causing severe diseases such as fruit rot, bud rot, blight, cankers, and root rot. Papaya is grown in South Africa by smallholder and commercial farmers in the Limpopo and Mpumalanga provinces. In 2019, widespread symptoms of crown and root rot were observed in South African papaya orchards, leading to significant plant collapse. Thi...
Withania somnifera , commonly referred to as Indian Ginseng, is a medicinally important plant that can be found in many regions of the world, such as South Africa and India. Withanolides are key secondary metabolites responsible for conferring the plant its unique medicinal properties. The reaction of W. somnifera to salt stress, in particular the possible effects on its withanolide production, has yet to be explored. Under sa...
Interpretable deep learning reveals spatiotemporal MRI features of brain aging that align with neurodegenerationNARA Subscribed
Cortical thinning and atrophy are hallmarks of brain aging that have been characterized using magnetic resonance imaging (MRI). Brain aging involves many neuroanatomic features whose effects on brain structure remain unexplored. To address this challenge, we trained interpretable deep neural networks (DNNs) to estimate brain age (BA) from T 1 -weighted ( T 1 w) MRI. By identifying MRI features unapparent to humans, DNNs can fi...
Over the last 10 years, 12 rocky habitat ‘mbuna’ taxa have been translocated to Nkhata Bay on the north‐western shores of Lake Malawi from other regions of the lake. Given potential for competition and hybridization with indigenous taxa, further translocations should be avoided.
Designing Systematic Conservation Assessments that Promote Effective Implementation: Best Practice from South AfricaNARA Subscribed
Systematic conservation assessment and conservation planning are two distinct fields of conservation science often confused as one and the same. Systematic conservation assessment is the technical, often computer‐based, identification of priority areas for conservation. Conservation planning is composed of a systematic conservation assessment coupled with processes for development of an implementation strategy and stakeholder...
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