Metabolomics, together with analytical methods and chemometric tools, point to new paths for selecting species that are resistant pests diseases. In this work, the forage palm species’ metabolomic profile was investigated, relation between chemical composition resistance Dactylopius opuntiae (carmine cochineal). The study performed in cladodes of different non-susceptible cultivars (Nopalea coc...

Following pollination, the epidermal cells of the Arabidopsis (Arabidopsis thaliana) ovule undergo a complex differentiation process that includes the synthesis and polar secretion of pectinaceous mucilage followed by the production of a secondary cell wall. Wetting of mature seeds leads to the rapid bursting of these mucilage secretory cells to release a hydrophilic gel that surrounds the seed...

The Arabidopsis thaliana accession Shahdara was identified as a rare naturally occurring mutant that does not liberate seed mucilage on imbibition. The defective locus was found to be allelic to the mum2-1 and mum2-2 mutants. Map-based cloning showed that MUCILAGE-MODIFIED2 (MUM2) encodes the putative beta-D-galactosidase BGAL6. Activity assays demonstrated that one of four major beta-D-galacto...

The plant cell wall is held together by the interactions between four major components: cellulose, pectin, hemicellulose, and proteins. Mucilage is a powerful model system to study the interactions between these components as it is formed of polysaccharides that are deposited in the apoplast of seed coat epidermal cells during seed development. When seeds are hydrated, these polysaccharides exp...

Para identificar el agente causal de la costra negra del nopal (<em>Opuntia ficus-indica</em>) se aislaron e identificaron morfológicamente los hongos asociados a enfermedad. El estudio realizó partir cladodios con síntomas característicos enfermedad colectados en localidad Santa Cecilia Clavijero, municipio San Juan Ixcaquixtla, Puebla. Los como: <em>Cladosporium</em> &...

Abstract Opuntia ficus - indica (OFI), widely recognized as prickly pear, is a native species from Mexico, being also distributed in many other geographical regions worldwide. OFI plant with numerous beneficial properties, provide that it source of dietary fibres, vitamins and bioactive compounds anti-inflammatory, hypoglycemic antimicrobial properties. Various parts this including the fruit pu...

Mucilage was isolated from the seeds of Diospyros melonoxylon Roxb., a plant growing naturally in the forests of India. Various physico-chemical methods like particle analysis, scanning electron microscopy, differential scanning calorimetry, differential thermal analysis, thermogravimetry analysis, molecular weight by gel permeation chromatography, rheometry, elemental analysis, x-ray diffracti...

Exposure of the mature Arabidopsis (Arabidopsis thaliana) seed to water results in the rapid release of pectinaceous mucilage from the outer cells of the testa. Once released, mucilage completely envelops the seed in a gel-like capsule. The physical force required to rupture the outer cell wall of the testa comes from the swelling of the mucilage as it expands rapidly following hydration. In th...