Results 31 to 40 of about 396 (106)

On the hunt for the alternate host of Hemileia vastatrix. [PDF]

open access: yesEcol Evol, 2019
This hypothesis piece probes a 150‐year‐old question… “is there an alternate host of the fungal pathogen Hemileia vastatrix?” We use comprehensive geographical botanical data and automated text mining to narrow down the possibilities. Credit: Carvalho et al.
Koutouleas A   +5 more
europepmc   +2 more sources

A serious canker disease caused by Immersiporthe knoxdaviesiana gen. et sp. nov. (Cryphonectriaceae) on native Rapanea melanophloeos in South Africa [PDF]

open access: yesPlant Pathology, 2012
Recent disease surveys in the Western Cape province of South Africa have revealed a previously unknown and serious stem canker disease on native Rapanea melanophloeos (Myrsinaceae, Ericales) trees. Cankers commonly result in the death of branches or entire stems.
Chen, ShuaiFei   +3 more
openaire   +2 more sources

Medicinal Plants Traded in Informal Herbal Medicine Markets of the Limpopo Province, South Africa

open access: yesEvidence-Based Complementary and Alternative Medicine, Volume 2019, Issue 1, 2019., 2019
Trading of herbal medicines generates economic opportunities for vulnerable groups living in periurban, rural, and marginalized areas. This study was aimed at identifying medicinal plant species traded in the Limpopo province in South Africa, including traded plant parts, conservation statutes of the species, and harvesting methods used to collect the ...
Marula Triumph Rasethe   +3 more
wiley   +1 more source

Selected South African plants with tyrosinase enzyme inhibition and their effect on gene expression

open access: yesSouth African Journal of Botany, 2019
Hyperpigmentation causes patches of skin to blemish and may lead to serious skin disorders. Prevention of hyperpigmentation would require suppressing the melanogenesis pathway which uses the rate limiting enzyme tyrosinase.
J. Stapelberg   +4 more
semanticscholar   +1 more source

Generalist southern African temperate forest canopy tree species have distinct pollinator communities partially predicted by floral traits

open access: yesAustral Ecology, Volume 49, Issue 5, May 2024.
Pollination systems of tall forest trees are poorly studied, resulting from the difficulties in observing pollinator activity at canopy level and great temporal variation in flower production. Here, we observed insect flower visitors, at canopy level, to four southern Afrotemperate forest tree species bearing small, white to green flowers in a large ...
Rudi Crispin Swart   +3 more
wiley   +1 more source

Invasion of an Afrotemperate forest complex by the polyphagous shot hole borer beetle

open access: yesEntomologia Experimentalis et Applicata, Volume 172, Issue 4, Page 354-369, April 2024.
Polyphagous shot hole borer, Euwallacea fornicatus (Coleoptera: Curculionidae, Scolytinae), is a serious invasive tree‐killing pest that has not been studied in natural forest systems. We determined the drivers of PSHB colonization in 1682 trees (68 species) in a native Afrotemperate forest.
G. Townsend   +4 more
wiley   +1 more source

Anthelmintic efficacy and safety of selected medicinal plants against mixed gastrointestinal nematodes in artificially infected sheep

open access: yesThe Journal of Phytopharmacology, 2018
There has been widespread resistance to anthelmintics by pathogenic helminths to an extent where there is multi-drug resistance against all major classes of conventional anthelmintics.
J. Muthee
semanticscholar   +1 more source

Phytotoxicity evaluation of six fast-growing tree species in South Africa

open access: yes, 2014
Vachellia sieberiana , Albizia adianthifolia , Buddleja saligna , Combretum kraussii , Halleria lucida and Rapanea melanophloeos are fast-growing, indigenous tree species in South Africa.
T. Sunmonu, J. Staden
semanticscholar   +1 more source

Drought induced xylem embolism in four riparian trees from the Western Cape Province: Insights and implications for planning and evaluation of restoration

open access: yes, 2008
In Mediterranean climates, rainfall is restricted to periods of low evaporative demand, leaving plants to survive the summer drought. The purpose of this study was to determine the contribution of drought tolerance to the distribution of riparian species.
C. Swift, S. Jacobs, K. Esler
semanticscholar   +1 more source

The suitability of Thin Layer Chromatography for authenticating bark medicines used in South African traditional healthcare

open access: yes, 2003
Thin Layer Chromatography (TLC) was investigated as a potential tool with which medicinal bark products used in South African traditional healthcare may be authenticated.
O. Grace   +4 more
semanticscholar   +1 more source

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