Guangxi Institute of Botany

Carex ensiformis (C. subg. Siderosticta), a new species from southern China based on morphological and molecular evidence

BACKGROUND: Carex subg. Siderosticta is one of the six subgenera recognized in the recently revised infrageneric classification of Carex based on phylogenetic studies. It represents the earliest-diverging lineage within Carex and it is sister to all remaining species in the genus...

Comparative Assessment of Virus Elimination via Direct and Indirect Shoot-Tip Organogenesis in Purple Passion Fruit (Passiflora edulis Sims)

Three viruses, Telosma mosaic virus (TeMV), East Asian passiflora virus (EAPV), and Cucumber mosaic virus (CMV), were found to be widespread in Chinese purple passion fruit (Passiflora edulis Sims) growing regions, with co-infection by these three viruses confirmed in symptomatic...

Ecological fitting in a deceptive trap flower: Aristolochia gibertii recruits native drosophilid flies outside South America

Deceptive pollination, in which plants lure pollinators without offering rewards, represents a sophisticated evolutionary strategy. The trap-flowers of Aristolochia provide an excellent system to study the coordinated evolution of floral morphology, chemistry, and phenology. Howe...

Growth and Competition of the Tropical Invader Chromolaena odorata Are Inhibited by Late Arrival and Mitigated by Nitrogen Addition

Aims: Understanding how arrival order, nitrogen (N) availability and population density interact to shape plant invasion is critical for predicting and ameliorating biological invasions under global change. Chromolaena odorata is one of the most destructive invasive plants in tro...

Carbon Quantum Dots and Ectoine Foliar Application Enhance Heat Tolerance of Gentiana rhodantha

Heat stress exerts detrimental effects on the survival, growth, and productivity of Gentiana rhodantha Franch. ex Hemsl., a medicinal herb endemic to Southwestern China. The application of exogenous protective substances has been widely recognized as an effective and economical s...

Trophic transfer of silver nanoparticles in a detritus-based food chain within a karst stream: A comparative study of direct exposure versus trophic transfer

The widespread use of silver nanoparticles (AgNPs) has led to their substantial release into aquatic ecosystems, yet their ecological risks within detritus-based food chains remain poorly understood. This study constructed a model detrital food chain— Pterocarya stenoptera leaf l...

Genetic distance and pollinator sharing shape divergence in floral volatiles in closely related dioecious Ficus species

Abstract Premise Floral scent is central to host recognition in the fig–fig wasp mutualism, yet how scent divergence relates to pollinator sharing among closely related dioecious Ficus species remains unclear. Methods We analyzed volatile organic compounds (VOCs) from four pairs...

Effects of Shade Treatments on Growth, Photosynthetic Performance, Leaf Microstructure, and Pigment Accumulation in Horsfieldia hainanensis Seedlings

In this study, three-year-old seed-derived seedlings of Horsfieldia hainanensis Merr. were subjected to 0%, 25%, 50%, and 75% shade treatments in a nursery shade-net experiment from October 2025 to June 2026. Each treatment included three replicates, with three seedlings per repl...