Universidad Autónoma de Tlaxcala

Cinnabarinic Acid Accumulation by Pycnoporus cinnabarinus in Three Submerged Culture Systems and Bacterial Growth-Inhibitory Activity of the Crude Extracts

Cinnabarinic acid (CA) is a phenoxazinone metabolite produced by Pycnoporus fungi and reported to have antibacterial activity. This study compared CA production by Pycnoporus cinnabarinus HEMIM-53 in three culture systems, Shake flasks (FSK), a Stirred-tank reactor (STR), and an...

Detection of HI Holes in NGC 6946 Using Artificial Intelligence: New Candidates from moment-0 Maps

The automated detection of HI holes in galaxy disks has been a long-standing challenge in extragalactic radio astronomy and has become increasingly urgent due to the large data volumes generated by current and forthcoming large-area HI surveys. Conventional approaches based on vi...

Mechanical isolation emerges from individual-level morphological covariation under reinforcement

Mechanical isolation is often viewed as a discrete species-level premating barrier arising from divergence in reproductive morphology. However, whether such isolation reflects discrete species-level incompatibility or emerges from continuous variation in morphological matching am...

Spatial prioritization for conserving hummingbird–plant interaction roles across Mexico

Global biodiversity goals acknowledge that conserving species alone is insufficient to maintain ecosystem functioning. Yet, spatial conservation planning rarely incorporates ecological interactions, limiting efforts to protect both species' persistence and the ecological processe...

Ecological risk of the pesticide imiprothrin and microplastics separately and combined on demography of cladocerans (Cladocera)

We tested different concentrations of the synthetic pyrethroid (imiprothrin) (IP) and microplastics (MPs) (alone and combined) on the demography and population growth of two cladoceran species (Ceriodaphnia dubia and Simocephalus vetulus). The two test concentrations of IP for C....

Isolation and Characterization of Lytic Bacteriophages Targeting Clinical Staphylococcus Other Than S. aureus

Abstract Staphylococcus spp., other than S. aureus (SOSA, formerly CoNS), are opportunistic pathogens often linked to biofilm infections on indwelling devices. Their rising antibiotic resistance highlights the need for novel therapies. Bacteriophages are promising due to their sp...

A New Genus of Oak Gall Wasp, Striatoandricus Pujade-Villar (Hymenoptera: Cynipidae: Cynipini) from America with Descriptions of Two New Mexican Species

section. Descriptions of the genus and diagnostic characters, including DNA sequence data, are presented. This new genus is supported by both morphological and molecular data.

Public Health Policy Responses to Population Aging in Mexico: A Rights-Based and Socio-Legal Approach

Background/Objectives: Population aging represents a major social and public health challenge in Latin America. Mexico has made significant advances in regulatory and policy frameworks. Notable progress includes accession to the Inter-American Convention on Protecting the Human R...

Assemblage structure and ecological functions of dung beetles in exotic pastures in the Southwestern Amazon

Abstract The implementation of exotic pastures in the Amazon causes drastic negative impacts on its biodiversity. Nevertheless, some species with the ability to colonize pastures may provide important ecosystem services for livestock development in tropical pastures, as in the Am...

Deep seeding resistance in maize: selected after domestication or a strategy of its wild ancestors to escape underground animal burrowing?

Abstract Buried seeds avoid predation ensuring their survival until conditions are suitable for germination. The ability of seedlings to emerge from the soil depends on soil characteristics, burial depth, and the skotomorphogenic program of each species. This process is of intere...

Techno-Spatial and Economic Assessment of Rooftop Versus Land-Based Photovoltaic Deployment in a Biodiversity-Sensitive Region of the Mexican Caribbean

Solar photovoltaic (PV) expansion in fast-growing tropical regions requires engineering-based frameworks that compare deployment pathways in terms of electricity generation, spatial footprint, and economic performance. This study develops a techno-spatial and economic assessment...