Melina López‐Meyer

ORCID: 0000-0001-9050-5691
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About
Contact & Profiles
Research Areas
  • Mycorrhizal Fungi and Plant Interactions
  • Plant-Microbe Interactions and Immunity
  • Plant pathogens and resistance mechanisms
  • Plant tissue culture and regeneration
  • Legume Nitrogen Fixing Symbiosis
  • Plant Parasitism and Resistance
  • Plant Stress Responses and Tolerance
  • Plant and Fungal Species Descriptions
  • Plant Pathogens and Fungal Diseases
  • Plant Molecular Biology Research
  • Light effects on plants
  • Biochemical Analysis and Sensing Techniques
  • Insect and Pesticide Research
  • Aquaculture disease management and microbiota
  • Plant nutrient uptake and metabolism
  • Invertebrate Immune Response Mechanisms
  • Transgenic Plants and Applications
  • Genetics and Plant Breeding
  • Cancer therapeutics and mechanisms
  • Entomopathogenic Microorganisms in Pest Control
  • Plant Gene Expression Analysis
  • Microbial Metabolites in Food Biotechnology
  • Traditional and Medicinal Uses of Annonaceae
  • Genomics and Phylogenetic Studies
  • Plant and animal studies

Instituto Politécnico Nacional
2013-2024

Diversitech (United States)
2019

Centro de Investigación y Desarrollo
2013-2017

Instituto Tecnológico de Culiacán
2011

Cornell University
2007-2008

Ithaca College
2007-2008

Noble Research Institute
2002

Pediatric Hospital of Sinaloa
2001

Texas A&M University
1994-1997

Mitchell Institute
1994

In natural ecosystems, the roots of many plants exist in association with arbuscular mycorrhizal (AM) fungi, and resulting symbiosis has profound effects on plant. The most frequently documented response is an increase phosphorus nutrition; however, other have been noted, including increased resistance to abiotic biotic stresses. Here we used a 16,000-feature oligonucleotide array real-time quantitative RT-PCR explore transcriptional changes triggered Medicago truncatula shoots as result AM...

10.1111/j.1365-313x.2007.03069.x article EN The Plant Journal 2007-04-05

The plant hormone ethylene negatively regulates bacterial infection and nodule formation in legumes response to symbiotic rhizobia, but the molecular mechanism(s) of action symbiosis remain obscure. We have identified characterized multiple mutant alleles MtSkl1 gene, which controls both sensitivity numbers. show that this locus encodes Medicago truncatula ortholog Arabidopsis signaling protein EIN2. In addition well-characterized role rhizobial symbiosis, we is involved regulating early...

10.1111/j.1365-313x.2008.03531.x article EN The Plant Journal 2008-04-25

The stalk, ear and root rot (SERR) of maize caused by Fusarium verticillioides (Fv) severely impacts crop production in tropical subtropical regions. aim the present work was to screen bacterial isolates order find novel native biocontrol agents against Fv. A culturable collection consisting 11,520 enriched Firmicutes Proteobacteria created from rhizosphere samples taken SERR symptomatic or asymptomatic plants. complete screened for potential activity Fv using a liquid antagonism assay...

10.1186/s40064-016-1780-x article EN SpringerPlus 2016-03-15

Camptothecin (CPT) is a valuable anti‐cancer monoterpene alkaloid produced by the Chinese tree Camptotheca acuminata . Tryptophan decarboxylase (TDC) supplies tryptamine for indole moiety of CPT and its derivatives, considered key step in biosynthesis as it links primary secondary metabolism. This report describes isolation characterization tdc1 tdc2 , two autonomously regulated TDC genes from When expressed Escherichia coli products each gene could decarboxylate tryptophan, but were...

10.1046/j.1365-313x.1997.11061167.x article EN The Plant Journal 1997-12-01

Camptothecin is an anticancer and antiviral alkaloid produced by the Chinese tree Camptotheca acuminata (Nyssaceae). Despite previous reports of low levels activity in leaves acuminata, we have discovered that camptothecin accumulates to approximately 0.4% dry weight young leaves. This level 1.5-fold higher than seeds 2.5-fold bark, two currently used sources drug. As mature, concentration absolute amount decreases rapidly. The high could provide easily harvested, non-destructive source this...

10.1055/s-2006-959571 article EN Planta Medica 1994-12-01

Stevia rebaudiana (Bertoni) Bertoni is a plant of economic interest in the food and pharmaceutical industries due its steviol glycosides (SG), which are rich metabolites that 300 times sweeter than sucrose. In addition, S. plants contain phenolic compounds flavonoids with antioxidant activity. Endophytic bacteria promote growth development modulate metabolism host plant. However, little known regarding role endophytic growth; synthesis SG, compounds; relationship between trichome specialized...

10.7717/peerj.13675 article EN cc-by PeerJ 2022-06-28

The protective effect of a probiotic mixture (PM) and antiviral plants, against the white spot syndrome virus (WSSV) in Litopenaeus vannamei, was evaluated three experiments. PM composed four lactic acid bacteria (LAB) one yeast strain. plant Ocimum sanctum commercial plants (VPH®, HSV®). Shrimp each experiment (weighing 2.7±0.7, 11.5±1.3, 11.70±2.5 g) were cultured 120-L plastic tanks fed twice day with feed plus additives (plants or yeast). Animals monitored for occurrence WSSV by...

10.1111/j.1365-2109.2009.02248.x article EN Aquaculture Research 2009-04-27

Mexico is among the most important citrus fruit producers in world. However, during storage, several problems related to fungi can arise. The common fungal postharvest diseases detected on Citrus limon var Eureka (Italian lime) produced Tamaulipas state are green/blue mold (Penicillium spp.), fusarium rot (F. oxysporum, F. solani, proliferatum, others), and anthracnose (Colletotrichum spp.). In this work, we selected yeasts, occurring as natural epiphytic mycoflora of lemons or from...

10.3390/horticulturae9050573 article EN cc-by Horticulturae 2023-05-12

A simplified protocol to obtain transgenic tomato plants was established. The effects of culture media composition and Agrobacterium concentration were evaluated. highest shoot-forming capacity index (5.6) observed when leaf explants cultured for 6 weeks with 2 mg·L −1 zeatin, 0.1 indoleacetic acid, 300 timentin. Shoot elongation root formation performed in one step on growth regulator-free media. percentage (82%) fully developed plantlets obtained shoots 4 0.5× Murashige Skoog (MS) 15 g·L...

10.21273/hortsci.46.12.1655 article EN HortScience 2011-12-01

Abstract Background Common bean ( Phaseolus vulgaris L. ) is a relevant crop cultivated over the world, largely in water insufficiency vulnerable areas. Since drought main environmental factor restraining worldwide production, efforts have been invested to amend tolerance commercial common varieties. However, scarce molecular data are available for those cultivars of P. with attributes. Results As first approach, Pinto Saltillo (PS), Azufrado Higuera (AH), and Negro Jamapa Plus (NP) were...

10.1186/s12870-020-02664-1 article EN cc-by BMC Plant Biology 2020-11-17

In plants, phosphorus (P) uptake occurs via arbuscular mycorrhizal (AM) symbiosis and through plant roots. The phosphate concentration is known to affect colonization by AM fungi, the effect depends on species. Stevia rebaudiana plants are valuable sources of sweetener compounds called steviol glycosides (SGs), principal components SGs stevioside rebaudioside A. However, a detailed analysis describing fungi in roots relationship these factors accumulation photochemical performance has not...

10.7717/peerj.10173 article EN cc-by PeerJ 2020-10-19

Xyloglucan endotransglucosylase/hydrolases ( XTHs ) are a glycoside hydrolase protein family involved in the biosynthesis of xyloglucans, with essential roles regulation plant cell wall extensibility. By taking advantage whole genome sequence Solanum lycopersicum , 37 SlXTHs were identified present work. classified into four subfamilies (ancestral, I/II, III-A, III-B) when aligned to other species. Gene structure and conserved motifs showed similar compositions each subfamily. Segmental...

10.7717/peerj.15257 article EN cc-by PeerJ 2023-05-03

Abstract Gracilaria parvispora is reported for the first time as an invasive species in northwestern Mexico based on morphological, anatomical and molecular data. The widely distributed region, where it colonizes sandy rocky habitats from intertidal areas down to a depth of 1.5 m. morphological data Mexican specimens matched circumscription Hawaiian waters. Two markers ( rbc L cox 1) showed that populations were closer than Korean populations, which may relate similarity seawater...

10.1515/bot-2012-0177 article EN Botanica Marina 2013-03-30

Arbuscular mycorrhizal symbiosis is an association that provides nutritional benefits to plants. Importantly, it induces a physiological state allowing plants respond subsequent pathogen attack in more rapid and intense manner. Consequently, mycorrhiza-colonized become less susceptible root shoot pathogens. This study aimed identify some of the molecular players potential mechanisms related onset defense priming by mycorrhiza colonization, as well miRNAs may act regulators genes. The...

10.3390/biology11060854 article EN cc-by Biology 2022-06-02

The arbuscular mycorrhizal (AM) symbiosis is an intimate association between specific soil-borne fungi and the roots of most land plants. AM colonisation elicits enhanced defence resistance against pathogens, known as mycorrhizal-induced (MIR). This mechanism locally systemically sensitises plant tissues to boost their basal response. Although a role for oxylipins in MIR has been proposed, it not yet experimentally confirmed. In this study, when common bean (Phaseolus vulgaris L.)...

10.1071/fp14101 article EN Functional Plant Biology 2014-08-21
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