The New World genus Venanus (Hymenoptera: Braconidae: Microgastrinae) is a small group of parasitoid wasps that includes two Nearctic and seven Neotropical species. Here two additional species, authored by Fernández-Triana & Whitfield, are described from Costa Rica: V.johnnyrosalesi sp. n. from Area de Conservación Guanacaste (ACG) and V.randallgarciai sp. n. from Area de Conservación Cordillera Volcanica Central. They represent the first record of the genus for Mesoamerica. A previous key to all known Venanus (Whitfield et al. 2011) is modified to include the new species. The Costa Rican species were collected at altitudes of 1,400-1,460 m, but nothing is known of their biology. DNA barcodes were obtained for both species and are included as part of the description along with extensive photos. This paper is part of a series inventorying the diversity of Microgastrinae in ACG.
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http://dx.doi.org/10.3897/BDJ.2.e4167 | DOI Listing |
BMC Plant Biol
January 2025
Department of Plant Production and Genetic (Biotechnology), Faculty of Agriculture, Jahrom University, Jahrom, Iran.
Background: Geraniums (Pelargonium) are among the most popular flowers worldwide. Viral infection is one of the main problems of the genus Pelargonium, and the production of virus-free mother plants is necessary for large-scale geranium propagation and exchange. Meristem culture and thermotherapy are two effective procedures that have been widely adopted to produce healthy virus-free plant stocks.
View Article and Find Full Text PDFPlant Dis
December 2024
College of Landscape Architecture and Horticulture, Kunming, China;
Dodder (Cuscuta spp.), particularly the species Cuscuta chinensis, is a parasitic weed known for its ability to infest a broad spectrum of plant species, thereby significantly affecting the stability and functionality of native ecosystems (Zhang, Xu et al. 2021).
View Article and Find Full Text PDFPhytoKeys
December 2024
Department of Biology and Chemistry, Changwon National University, Changwon 51140, Republic of Korea Changwon National University Changwon Republic of Korea.
The genus L., belonging to the Liliaceae family, has significant economic, horticultural, and ecological importance and is culturally revered in various regions worldwide. The total number of species, including 90-120 taxa, varies based on different sources.
View Article and Find Full Text PDFMol Ecol Resour
December 2024
Department of Botany, University of British Columbia, Vancouver, British Columbia, Canada.
Relatively little is known of the host associations and compatibility of fungal plant pathogens and endophytes. Publicly available plant genomic DNA can be mined to detect incidental fungal DNA, but taxonomic assignment can be challenging due to short lengths and variable discriminative power among different genomic regions and taxa. Here, we introduce a computationally lightweight and accessible Snakemake pipeline for rapid detection and classification (identification and assignment to taxonomic rank) of pathogenic and endophytic fungi (and other fungi associated with plants) that targets the internal transcribed spacer (ITS) region, a fungal barcode standard.
View Article and Find Full Text PDFNeotrop Entomol
December 2024
Dept of Agronomy, Santa Catarina State Univ (CAV/UDESC), Lages, SC, Brazil.
Climate change and anthropogenic disturbance in agricultural production systems can facilitate shifts in the distribution of arthropod pest species and in the range of plant hosts on which they feed. This study presents the first record of Tropical Sod Webworm (TSW), Herpetogramma phaeopteralis Guenée (Lepidoptera: Crambidae: Spilomelinae), on native or nativized species of the genus Axonopus (Poaceae) in Brazil. The occurrence of population outbreaks of this species was observed in March and April of 2024 among smallholder cattle farmers in Capão Alto and Campo Belo do Sul, both municipalities situated in the highlands of Santa Catarina State, southern Brazil.
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