David Alors

David Alors
Temuco Catholic University | UCTemuco · Facultad de Recursos Naturales

PhD
Part Time Professor - Departamento de Ciencias Biológicas y Químicas

About

25
Publications
15,906
Reads
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307
Citations
Introduction
I am studying the interaction between the parasitic Blastocladiomycota fungus Paraphysoderma sedebokerense and the green alga Haematococcus pluvialis.
Additional affiliations
April 2019 - present
Ben-Gurion University of the Negev
Position
  • PostDoc Position
Description
  • Microalgal Biotechnology Laboratory
February 2012 - May 2017
Complutense University of Madrid
Position
  • PhD Student
Description
  • MICROEVOLUTIVE ASPECTS AND DIVERSITY IN LICHEN CO-SYMBIONTS PhD Thesis
July 2009 - September 2010
Spanish National Research Council
Position
  • Post Graduate
Description
  • Project Title: Environmental and Genetic control of puberty bass (AGL2006-04672) Financing Agency: Ministry of Education and Science (BOE 284, Friday December 9, 2005) Principal Investigator: M. Carrillo
Education
February 2012 - May 2017
Complutense University of Madrid
Field of study
  • Phylogenetics
September 2009 - November 2010
Universitat Politècnica de València
Field of study
  • Aquaculture
September 2001 - September 2008

Publications

Publications (25)
Article
Full-text available
High levels of cryptic diversity have been documented in lichenized fungi, especially in Parmeliaceae, and integrating various lines of evidence, including coalescent-based species delimitation approaches, help establish more robust species circumscriptions. In this study, we used an integrative taxonomic approach to delimit species in the lichen-f...
Article
Full-text available
The Mediterranean region, comprising the Mediterranean Basin and the Macaronesian Islands, represents a center of diversification for many organisms. The genetic structure and connectivity of mainland and island microbial populations has been poorly explored, in particular in the case of symbiotic fungi. Here we investigated genetic diversity and s...
Article
Full-text available
The blastocladialean fungus Paraphysoderma sedebokerense parasitizes three microalgae species of economic interest: Haematococcus pluvialis, Chromochloris zofingiensis and Scenedesmus dimorphus. For the first time, we characterized the developmental stages of isolated fungal propagules in H. pluvialis co-culture, finding a generation time of 16 h....
Article
Full-text available
Glutamine synthetase (GlnS) is a key enzyme in nitrogen metabolism. We investigated the effect of the GlnS inhibitor glufosinate on the infection of H. lacustris by the blastocladialean fungus P. sedebokerense, assuming that interfering with the host nitrogen metabolism will affect the success of the parasite. Complete inhibition of infection, whic...
Article
Full-text available
Lichens are recognized as bioindicators of ecosystem processes associated with environmental disturbances. However, its evaluation in the time requires systematic records of biodiversity which are non-existent in the Katalalixar National Reserve. The aim of this study was to catalog the richness and distribution of lichen biota of Katalalixar Natio...
Article
Lichens are recognized as bioindicators of ecosystem processes associated with environmental disturbances. However, its evaluation in the time requires systematic records of biodiversity which are non-existent in the Katalalixar National Reserve. The aim of this study was to catalog the richness and distribution of lichen biota of Katalalixar Natio...
Article
Our knowledge of ontogenetic development and reproductive biology in lichen-forming fungi is rather poor. Here, we aim to advance our understanding of the reproductive biology of Parmelina carporrhizans and P. quercina for which mycobiont fungi of both species were cultured in aposymbiotic conditions from ascospores. For P. carporrhizans 48 hours w...
Article
Full-text available
Disjunct intercontinental distributions have always fascinated biologists. With the increasing availability of molecular sequence data, there is a renewed interest in historical biogeography, especially in groups in which species boundaries have changed dramatically as a result, such as lichenized fungi. In the hyperdiverse family Parmeliaceae, Par...
Data
Collection information for all the specimens included in the present study. GenBank accession numbers for the three sampled loci: nuclear ribosomal internal transcribed spacer region (ITS), mitochondrial small subunit (mtSSU), and protein-coding maker RPB1. Newly generated sequences for this study are indicated in boldface. Type specimens are indic...
Data
RPB1 tree. ML phylogenetic tree of Punctelia genus from RPB1 sequences. Bolded lines represent supported branches with bootstrap values higher or equal than 70. (PDF)
Data
ITS ML tree. ML phylogenetic tree of Punctelia genus from ITS sequences. Bolded lines represent supported branches with bootstrap values higher or equal than 70. (PDF)
Data
mtSSU tree. ML phylogenetic tree of Punctelia genus from mtSSU sequences. Bolded lines represent supported branches with bootstrap values higher or equal than 70. (PDF)
Data
Specimens re-examined. Table summarizing information obtained from the vouchers of P. rudecta s. lat. samples, including size, presence of sexual structures, coloration, chemistry and substrate. (XLSX)
Article
Full-text available
We studied the evolutionary history of the Parmeliaceae (Lecanoromycetes, Ascomycota), one of the largest families of lichen-forming fungi with complex and variable morphologies, also including several lichenicolous fungi. We assembled a six-locus data set including nuclear, mitochondrial and low-copy protein-coding genes from 293 operational taxon...
Conference Paper
Full-text available
Parmelina carporrhizans, long considered synonymous with P. quercina (Hale, 1976), is a well-separated species (Arguello et al, 2007) but this misinterpretation has obscured the knowledge of their variability and distribution. We have developed molecular markers that serve as fine tools to measure genetic diversity and structure of this species wit...
Article
Full-text available
Microbial symbionts are instrumental to the ecological and long-term evolutionary success of their hosts, and the central role of symbiotic interactions is increasingly recognized across the vast majority of life. Lichens provide an iconic group for investigating patterns in species interactions; however, relationships among lichen symbionts are of...
Article
Full-text available
Premise of the study: Microsatellite loci were developed to study the lichen-forming fungus Parmelina (Parmeliaceae) in different habitats of western Europe and the Mediterranean for baseline studies to understand the effects of climate change on its distribution. Methods and Results: We cultured P. carporrhizans from ascospores for genomic sequenc...
Conference Paper
Full-text available
Conferencias: - Relaciones filogenéticas en el género Punctelia (Parmeliaceae, Ascomycota) - Optimización de las técnicas de cultivo en Parmelina carporrhizans y P. quercina. - Exploring symbiont fidelity among lichen symbioses and the common alga Trebouxia decolorans s.l.: different levels of intrathalline photobiont diversity in Xanthoria pari...

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