Response to heat stress and glutenins allelic variation effects on quality traits in durum wheat

Facundo Tabbita Karim Ammar Maria Itria Ibba MARCO MACCAFERRI ROBERTO TUBEROSA Carlos Guzman (2024, [Artículo])

Gluten Quality Sedimentation Volume Wheat Quality CIENCIAS AGROPECUARIAS Y BIOTECNOLOGÍA GLUTEN QUALITY GLUTENINS HEAT STRESS WHEAT

Development of a next generation SNP genotyping array for wheat

Simon Griffiths Susanne Dreisigacker Alison Bentley Gina Brown-Guedira (2023, [Artículo])

Axiom Array High Throughput Genotyping Hexaploid Wheat Copy Number Variation Analysis CIENCIAS AGROPECUARIAS Y BIOTECNOLOGÍA SINGLE NUCLEOTIDE POLYMORPHISMS WHEAT GENOTYPING GENETIC DIVERSITY (AS RESOURCE)

Accumulation of wheat phenolic acids under different nitrogen rates and growing environments

Wenfei Tian Yong Zhang Zhonghu He (2022, [Artículo])

Functional Wheat Trans-Ferulic Acid Nitrogen Management Environment Interaction CIENCIAS AGROPECUARIAS Y BIOTECNOLOGÍA WHEAT PHENOLIC ACIDS NITROGEN ENVIRONMENT ANTIOXIDANTS

A comprehensive review of wheat phytochemicals: From farm to fork and beyond

Wenfei Tian Michael Tilley Zhonghu He Yonghui Li (2022, [Artículo])

Cereal Nutrients Health Benefits Wheat Phytochemicals CIENCIAS AGROPECUARIAS Y BIOTECNOLOGÍA ALKYLRESORCINOLS ANTIOXIDANTS PHENOLIC ACIDS WHEAT

The banana MaWRKY18, MaWRKY45, MaWRKY60 and MaWRKY70 genes encode functional transcription factors and display differential expression in response to defense phytohormones

SERGIO GARCIA LAYNES VIRGINIA AURORA HERRERA VALENCIA Lilia Guadalupe Tamayo Torres VERONICA LIMONES BRIONES FELIPE ALONSO BARREDO POOL FRAY MARTIN BAAS ESPINOLA Angel Alpuche-Solis CARLOS ALBERTO PUCH HAU SANTY PERAZA ECHEVERRIA (2022, [Artículo])

WRKY transcription factors (TFs) play key roles in plant defense responses through phytohormone signaling pathways. However, their functions in tropical fruit crops, especially in banana, remain largely unknown. Several WRKY genes from the model plants rice (OsWRKY45) and Arabidopsis (AtWRKY18, AtWRKY60, AtWRKY70) have shown to be attractive TFs for engineering disease resistance. In this study, we isolated four banana cDNAs (MaWRKY18, MaWRKY45, MaWRKY60, and MaWRKY70) with homology to these rice and Arabidopsis WRKY genes. The MaWRKY cDNAs were isolated from the wild banana Musa acuminata ssp. malaccensis, which is resistant to several diseases of this crop and is a progenitor of most banana cultivars. The deduced amino acid sequences of the four MaWRKY cDNAs revealed the presence of the conserved WRKY domain of ~60 amino acids and a zinc-finger motif at the N-terminus. Based on the number of WRKY repeats and the structure of the zinc-finger motif, MaWRKY18 and MaWRKY60 belong to group II of WRKY TFs, while MaWRKY45 and MaWRKY70 are members of group III. Their corresponding proteins were located in the nuclei of onion epidermal cells and were shown to be functional TFs in yeast cells. Moreover, expression analyses revealed that the majority of these MaWRKY genes were upregulated by salicylic acid (SA) or methyl jasmonate (MeJA) phytohormones, although the expression levels were relatively higher with MeJA treatment. The fact that most of these banana WRKY genes were upregulated by SA or MeJA, which are involved in systemic acquired resistance (SAR) or induced systemic resistance (ISR), respectively, make them interesting candidates for bioengineering broad-spectrum resistance in this crop. © 2022 by the authors.

BANANA TRANSCRIPTION FACTOR WRKY DEFENSE PHYTOHORMONES SALICYLIC ACID METHYL JASMONATE SAR ISR BROAD-SPECTRUM RESISTANCE BIOLOGÍA Y QUÍMICA CIENCIAS DE LA VIDA GENÉTICA GENÉTICA MOLECULAR DE PLANTAS GENÉTICA MOLECULAR DE PLANTAS

Sistema para la prevención de riesgos hidrológicos en la costa de Chiapas

PEDRO RIVERA RUIZ HECTOR GREGORIO CORTES TORRES (2008, [Documento de trabajo])

Este proyecto tiene por objeto generar recomendaciones para el uso y manejo de laderas y su estabilización, con el fin de minimizar los riesgos a la población e infraestructura productiva, ante la ocurrencia de fenómenos hidrometeorológicos extremos.

Factores meteorológicos Planificación en desastres Usos del suelo Informes de proyectos Chiapas CIENCIAS AGROPECUARIAS Y BIOTECNOLOGÍA

Banco de agua

GUSTAVO ARMANDO ORTIZ RENDON RAMON LOPEZ HERNANDEZ (2004, [Libro])

Se propone el diseño y reglas de funcionamiento de un banco de agua en México, que facilite las transacciones de agua entre usuarios y que, en concordancia con la legislación vigente, ayude a reducir la presión de la demanda de agua y libere volúmenes de agua concesionada para lograr fines ambientales específicos, dentro del contexto de la realidad económica, politica, social y ambiental del país.

Administración del agua Política hídrica Tarifas Factores socioeconómicos Legislación ambiental Bancos de agua Cuenca Lerma-Chapala CIENCIAS SOCIALES

Aspectos socioeconómicos y ambientales de las sequías en México

Socioeconomic and environmental aspects of drought in Mexico

David Ortega Gaucin Israel Velasco Velasco (2013, [Artículo])

La sequía es un fenómeno natural impredecible que tiende a extenderse de manera irregular a través del tiempo y del

espacio, y sus efectos son, con frecuencia, desastrosos. En este trabajo se presentan los principales aspectos socioeconómicos

y ambientales relacionados con las sequías y sus impactos en México. Se incluye en principio un apartado

en el que se analiza el concepto de sequía y los tipos de sequía identificados en la literatura especializada, así como

los principales impactos genéricos de las sequías en los sectores económico, social y ambiental. Luego se presenta una

narrativa sobre los impactos de las sequías en México, desde la época prehispánica hasta la actualidad. Finalmente, se

incluye un apartado dedicado a analizar la vulnerabilidad actual ante la sequía en México. Se concluye que las sequías

ocurridas en el pasado en este país han afectado principalmente al sector agropecuario y a la población rural, y han tenido

un carácter altamente social; asimismo, en la actualidad la población y los diversos sectores socioeconómicos de ciertas

áreas del país (sobre todo en el norte y centro), siguen siendo muy vulnerables ante los embates del fenómeno.

Palabras clave: sequía, agua, déficit hídrico, vulnerabilidad.

Sequías Escasez de agua Factores socioeconómicos Impactos ambientales CIENCIAS FÍSICO MATEMÁTICAS Y CIENCIAS DE LA TIERRA

Economic, social and environmental vulnerability to drought in the Northwest river basin system, Mexico

David Ortega Gaucin HEIDY VIVIANA CASTELLANO BAHENA JESUS DE LA CRUZ BARTOLON (2018, [Artículo])

Vulnerability to drought is the degree to which a system is susceptible to damage by drought and incapable of coping with its adverse effects. This article presents a method to calculate drought vulnerability indices in the Northwest River Basin System, Mexico. The method is based on the concept of vulnerability developed by the Intergovernmental Panel on Climate Change (IPCC, 2007), which differentiates three components of vulnerability: degree of exposure, sensitivity and adaptive capacity. Each of these components is represented by a set of relative indicators at the municipal level that allow for the determination of three basic types of vulnerability: economic, social and environmental, which converge in overall vulnerability. The successful use of the method in the Northwest River Basin System shows that it can be applied to the rest of river basin systems in Mexico, and it can also be adapted to be used at the state or national level. The strength of the method lies in its approach as an objective analytic procedure that makes it possible to identify the most vulnerable municipalities from economic, social and environmental perspectives, which is useful in managing resources and efforts to reduce vulnerability to drought in the different regions of the country.

Sequías Vulnerabilidad Factores socioeconómicos Impacto ambiental CIENCIAS FÍSICO MATEMÁTICAS Y CIENCIAS DE LA TIERRA

On-farm assessment of yield and quality traits in durum wheat

Facundo Tabbita Iván Ortíz-Monasterios Francisco Javier Pinera-Chavez Maria Itria Ibba Carlos Guzman (2023, [Artículo])

BACKGROUND: Durum wheat is key source of calories and nutrients for many regions of the world. Demand for it is predicted to increase. Further efforts are therefore needed to develop new cultivars adapted to different future scenarios. Developing a novel cultivar takes, on average, 10 years and advanced lines are tested during the process, in general, under standardized conditions. Although evaluating candidate genotypes for commercial release under different on-farm conditions is a strategy that is strongly recommended, its application for durum wheat and particularly for quality traits has been limited. This study evaluated the grain yield and quality performance of eight different genotypes across five contrasting farmers’ fields over two seasons. Combining different analysis strategies, the most outstanding and stable genotypes were identified. RESULTS: The analyses revealed that some traits were mainly explained by the genotype effect (thousand kernel weight, flour sodium dodecyl sulfate sedimentation volume, and flour yellowness), others by the management practices (yield and grain protein content), and others (test weight) by the year effect. In general, yield showed the highest range of variation across genotypes, management practices, and years and test weight the narrowest range. Flour yellowness was the most stable trait across management conditions, while yield-related traits were the most unstable. We also determined the most representative and discriminative field conditions, which is a beneficial strategy when breeders are constrained in their ability to develop multi-environment experiments. CONCLUSIONS: We concluded that assessing genotypes in different farming systems is a valid and complementary strategy for on-station trials for determining the performance of future commercial cultivars in heterogeneous environments to improve the breeding process and resources.

Wheat Quality GGE Analysis Flour Yellowness CIENCIAS AGROPECUARIAS Y BIOTECNOLOGÍA FLOURS WHEAT QUALITY YIELDS FIELD EXPERIMENTATION