Improvement in Methane Production from Pelagic Using Combined Pretreatments.

The constant golden tides of spp., identified to be a mixture of and , observed recently in the Mexican Caribbean have affected the marine ecosystem and the local economy and have created the need for solutions for their management and use. The arrivals have thus been considered as third-generation feedstock for biofuel.

Environmental impact of Sargassum spp. landings: an evaluation of leachate released from natural decomposition at Mexican Caribbean coast.

Large volumes of pelagic Sargassum spp. have stranded periodically on the Mexican Caribbean shoreline. The aim of this research was to study the mobility of metals through the leachates released into the environment during the natural decomposition process of Sargassum spp.

Development, Validation, and Utility of Species-Specific Diagnostic Markers for Detection of .

is an oomycete and the cause of basil downy mildew, one of the most destructive diseases affecting basil production worldwide. Disease management is challenging due to wind-dispersed sporangia and contaminated seed; therefore, identifying in seed lots before sale or planting or in the field before symptoms develop could allow for timely deployment of disease management strategies. In this study, a draft genome assembly and next-generation sequencing reads for , as well as publicly available DNA-seq and RNA-seq reads of several other downy mildew pathogens, were incorporated into a bioinformatics pipeline to predict -specific diagnostic markers.

Universal Primers for Detection of Novel Plant Capsid-Less Viruses: Papaya Umbra-like Viruses as Example.

For diagnosis of positive-sense single-stranded RNA viruses, primers are usually raised against the sequence encoding capsid proteins, since structural proteins are more conserved. This chapter focuses on the design of primers for a group of novel viruses lacking a capsid, known as papaya Umbra-like viruses (unassigned genus) associated with Papaya Sticky Disease, which represent a threat to papaya production. Based on sequence alignments of a region encoding the RNA-dependent RNA Polymerase, universal primers to detect all the known viruses from four countries are proposed.

Biofouling control by phosphorus limitation strongly depends on the assimilable organic carbon concentration.

Nutrient limitation is a biofouling control strategy in reverse osmosis (RO) membrane systems. In seawater, the assimilable organic carbon content available for bacterial growth ranges from about 50 to 400 μg C·L, while the phosphorus concentration ranges from 3 to 11 μg P·L. Several studies monitored biofouling development, limiting either carbon or phosphorus.

Consolidated Bioprocess for Bioethanol Production from Raw Flour of Seeds Using the Native Strain of Bm-2.

Consolidated bioprocessing (CBP), which integrates biological pretreatment, enzyme production, saccharification, and fermentation, is a promising operational strategy for cost-effective ethanol production from biomass. In this study, the use of a native strain of (Bm-2) was evaluated for bioethanol production from in a CBP. The raw seed flour obtained from the ramon tree contained 61% of starch, indicating its potential as a raw material for bioethanol production.

Bactericidal Effect of the Leaf Extract from spp. (AAB Group, Silk Subgroup), cv. "Manzano" Against Multidrug-Resistant .

Air-dried leaves of a spp. AAB, cv. "Manzano" plant, known as in the Maya culture, were sequentially extracted with hexane, ethyl acetate, and methanol; the resulting extracts were investigated for their antimycobacterial activity against susceptible and drug-resistant strains of (MTB) using the Microplate Alamar Blue Assay.

Influence of two polarization potentials on a bioanode microbial community isolated from a hypersaline coastal lagoon of the Yucatan peninsula, in México.

In recent years, halotolerant biofilms have become a subject of interest for its application in Bioelectrochemical systems for wastewater treatment. To determine if the polarization potential affects the microbial community of a halotolerant bioanode, four bioanodes were poised at potentials of +0.34 V/SHE and - 0.

Genome Sequencing and Transcriptome Analysis of the Hop Downy Mildew Pathogen Reveal Species-Specific Genes for Molecular Detection.

is an obligate oomycete pathogen of hop () that causes downy mildew, an important disease in most production regions in the Northern Hemisphere. The pathogen can cause a systemic infection in hop, overwinter in the root system, and infect propagation material. Substantial yield loss may occur owing to infection of strobiles (seed cones), shoots, and cone-bearing branches.

Osmotically and Thermally Isolated Forward Osmosis-Membrane Distillation (FO-MD) Integrated Module.

In this study, we propose a novel module design to integrate forward osmosis (FO) and membrane distillation (MD). The two processes are sealed in one module and operated simultaneously, making the system compact and suitable for a wide range of applications. To evaluate the system under large-scale module operating conditions, FO and MD experiments were performed separately.

Transcriptomics and co-expression networks reveal tissue-specific responses and regulatory hubs under mild and severe drought in papaya (Carica papaya L.).

Plants respond to drought stress through the ABA dependent and independent pathways, which in turn modulate transcriptional regulatory hubs. Here, we employed Illumina RNA-Seq to analyze a total of 18 cDNA libraries from leaves, sap, and roots of papaya plants under drought stress. Reference and de novo transcriptomic analyses identified 8,549 and 6,089 drought-responsive genes and unigenes, respectively.

Corn industrial wastewater (nejayote): a promising substrate in Mexico for methane production in a coupled system (APCR-UASB).

In Mexico, the corn tortilla is a food of great economic importance. Corn tortilla production generates about 1500-2000 m of wastewater per 600 tons of processed corn. Although this wastewater (also known as nejayote) has a high organic matter content, few studies in Mexico have analyzed its treatment.

Pretreatment of vinasse from the sugar refinery industry under non-sterile conditions by in a fluidized bed bioreactor and its effect when coupled to an UASB reactor.

Background: During hydrous ethanol production from the sugar refinery industry in Mexico, vinasse is generated. Phenolic compounds and melanoidins contribute to its color and make degradation of the vinasse a difficult task. Although anaerobic digestion (AD) is feasible for vinasse treatment, the presence of recalcitrant compounds can be toxic or inhibitory for anaerobic microorganism.

A fast linear predictive adaptive model of packed bed coupled with UASB reactor treating onion waste to produce biofuel.

Background: Agro-industrial wastes are an energy source for different industries. However, its application has not reached small industries. Previous and current research activities performed on the acidogenic phase of two-phase anaerobic digestion processes deal particularly with process optimization of the acid-phase reactors operating with a wide variety of substrates, both soluble and complex in nature.

Pluggable microbial fuel cell stacks for septic wastewater treatment and electricity production.

Septic tanks and other decentralized wastewater treatment systems play an important role in protecting public health and water resource for remote or developing communities. Current septic systems do not have energy production capability, yet such feature can be very valuable for areas lack access to electricity. Here we present an easy-to-operate microbial fuel cell (MFC) stack that consists a common base and multiple pluggable units, which can be connected in either series or parallel for electricity generation during waste treatment in septic tanks.