Lázaro Marín-Guirao

Lázaro Marín-Guirao
Instituto Español de Oceanografia | IEO · Centro Oceanográfico de Murcia

PhD in Biological Sciences

About

135
Publications
60,240
Reads
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2,713
Citations
Citations since 2016
66 Research Items
1652 Citations
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20162017201820192020202120220100200300
Additional affiliations
June 2011 - September 2011
Technological Institute of Canary Islands
Position
  • Acute and chronic toxicity of saline increase to Cymodocea nodosa in mesocom experiments. Subproject included in the "VENTURI" project
Description
  • The hypersaline tolerance of C. nodosa populations from the Canary Islands was assessed in a mesocoms system. Tolerance was determined through ecophysiological responses: water relations, photosynthesis, solutes, phenology, growth and mortality
March 2010 - December 2012
Instituto Español de Oceanografia
Position
  • Postdoctoral Researcher: Response of Mediterranean seagrasses (Posidonia oceanica and Cymodocea nodosa) to osmotic stress
April 2008 - December 2009
Instituto Español de Oceanografia
Position
  • Postdoctoral Researcher Evaluation of osmotic stress bioindicators in Mediterranean seagrasses (Posidonia oceanica and Cymodocea nodosa). Application to the environmental impact of hypersaline discharges from desalination plants.
Education
January 2009 - February 2009
September 2003 - March 2007
University of Murcia
Field of study
  • Marine Ecology
October 2000 - June 2002
University of Murcia
Field of study
  • Ecology

Publications

Publications (135)
Article
Full-text available
Human- and nature-induced hypersaline conditions in coastal systems can lead to profound alterations of the structure and vitality of seagrass meadows and their socio-ecological benefits. In the last two decades, recent research efforts (>50 publications) have contributed significantly to unravel the physiological basis underlying the seagrass–hype...
Article
Full-text available
In seagrass sediments, lucinid bivalves and their chemoautotrophic bacterial symbionts consume H2S, relying indirectly on the plant productivity for the presence of the reduced chemical. Additionally, the role of lucinid bivalves in N provisioning to the plant (through N2 fixation by the symbionts) was hypothesized. Thus, lucinids may contribute to...
Article
Full-text available
Seagrass ecosystems usually respond in a nonlinear fashion to increasing pressures and environmental changes. Feedback mechanisms operating at the ecosystem level and involving multiple interactions among the seagrass meadow, its associated community and the physical environment are known to play a major role in such nonlinear responses. Phenotypic...
Article
Full-text available
The intensification of anomalous events of seawater warming and the co-occurrence with local anthropogenic stressors are threatening coastal marine habitats, including seagrasses, which form extensive underwater meadows. Eutrophication highly affects coastal environments, potentially summing up to the widespread effects of global climate changes. I...
Article
Full-text available
Marine heat waves (MHWs), prolonged discrete anomalously warm water events, have been increasing significantly in duration, intensity and frequency all over the world, and have been associated with a variety of impacts including alteration of ecosystem structure and function. This study assessed the effects of current and future MHWs on the Mediter...
Article
Seawater warming and increased incidence of marine heatwaves (MHW) are threatening the integrity of coastal marine habitats including seagrasses, which are particularly vulnerable to climate changes. Novel stress tolerance-enhancing strategies, including thermo-priming, have been extensively applied in terrestrial plants for enhancing resilience ca...
Article
Full-text available
A better understanding of species and population responses to thermal stress is critical to predict changes in their distribution under warming scenarios. Seagrasses are a unique group of marine plants that play fundamental roles in marine environments and provide vital ecosystem services. Nevertheless, previous studies on seagrass thermal toleranc...
Article
Full-text available
The role of DNA methylation and its interaction with gene expression and transcriptome plasticity is poorly understood, and current insight comes mainly from studies in very few model plant species. Here, we study gene body DNA methylation (gbM) and gene expression patterns in ecotypes from contrasting thermal environments of two marine plants with...
Article
The potential negative influence of the seaweed Caulerpa prolifera on the seagrass Cymodocea nodosa was explored in a Mediterranean coastal lagoon (Mar Menor, Spain) where the alga suddenly and rapidly spread four decades ago. An extensive field sampling was carried out across the lagoon to characterise the distribution and abundance of both macrop...
Article
Seagrasses are valuable sources of food and habitat for marine life and are one of Earth's most efficient carbon sinks. However, they are facing a global decline due to ocean warming and eutrophication. In the last decade, with the advent of new technology and molecular advances, there has been a dramatic increase in the number of studies focusing...
Article
Full-text available
Coastal oceans are particularly affected by rapid and extreme environmental changes with dramatic consequences for the entire ecosystem. Seagrasses are key ecosystem engineers or foundation species supporting diverse and highly productive ecosystems along the coastline that are particularly susceptible to fast environmental changes. In this context...
Article
Full-text available
Citation: Pazzaglia, J.; Nguyen, H.M.; Santillán-Sarmiento, A.; Ruocco, M.; Dattolo, E.; Marín-Guirao, L.; Procaccini, G. The Genetic Component of Seagrass Restoration: What We Know and the Way Forwards. Water 2021, 13, 829.
Article
Full-text available
Seagrass meadows are disappearing at rates comparable to those reported for mangroves, coral reefs, and tropical rainforests. One of the main causes of their decline is the so-called cultural eutrophication, i.e., the input of abnormal amounts of nutrients derived from human activities. Besides the impact of eutrophication at a local scale, the occ...
Article
1. Under unfavourable conditions, clonal plants benefit from physiological integration among ramets, sharing resources and information. Clonal integration can buffer against environmental changes and let the plant clone work as a “macro” organism. Molecular signals that regulate this phenomenon are completely unknown in marine plants. 2. Here, we p...
Chapter
Full-text available
El presente artículo sintetiza la situación de la laguna costera del Mar Menor en relación con los nutrientes, centrándose especialmente en el periodo anterior a la DANA de septiembre de 2019 y en la evolución de dicha situación tras la DANA, con particular atención al episodio de mortandad masiva ocurrido a mediados de octubre de 2019. Se presenta...
Article
Full-text available
While thermal priming and the relative role of epigenetic modifications have been widely studied in terrestrial plants, their roles remain unexplored in seagrasses so far. Here, we experimentally compared the ability of two different functional types of seagrass species, dominant in the Southern hemisphere, climax species Posidonia australis and pi...
Technical Report
Full-text available
A severe degradation of Mar Menor has been caused by the eutrophication process due to the excess of nutrients, degradation that the lagoon has been suffering since the 2016 eutrophic event and that has been aggravated by the nutrient and sediments contained in the runoff caused by the subtropical jet stream of September 2019
Article
Full-text available
Gene-expression patterns and their upstream regulatory mechanisms (e.g. epigenetic) are known to modulate plant acclimatability and thus tolerance to heat stress. Thermal plasticity and differential thermo-tolerance are recognized among different genotypes, development stages, organs or tissues of the same organ. Leaf age and lifespan have been dem...
Article
The invasive seaweed Caulerpa cylindracea has shown a reduced ability to invade healthy Posidonia oceanica meadows by penetrating only meadow margins in early invasion stages in the western Mediterranean Sea. However, the long-term interaction with invasive seaweed could deteriorate the structure of meadows by diminishing their initial resistance t...
Conference Paper
Full-text available
Whole transcriptome analysis of the seagrass Posidonia oceanica (L.) Delile, 1813 was performed under control and acute low-light conditions (LL). The study explored the molecular response of the shoot-apical meristem (SAM) in comparison with leaf tissue, which is classically used in this kind of studies. Photo-physiological and morphological respo...
Conference Paper
In shallow coastal ecosystems, as for example coastal lagoons, macrophytes account for high biomasses and productivity (Sand-Jensen 1975, Viaroli et al. 1996) being able to play a major role in the biogeochemical cycles of nutrients (Romero et al. 2006, Touchette and Burkholder 2000). When strong inputs of nutrients occur, due to natural and/or ant...
Article
The Mediterranean Sea is particularly vulnerable to warming and the abrupt declines experienced by the endemic Posidonia oceanica populations after recent heatwaves have forecasted severe consequences for the ecological functions and socio‐economical services this habitat forming species provides. Nevertheless, this highly clonal and long‐lived spe...
Article
Full-text available
The knowledge of how molecular functions vary in relation to developmental and environmental cues within and among seagrass leaves is scarce in comparison with terrestrial angiosperms. This strongly limits the mechanistic understanding of photosynthetic development and light acclimation processes in seagrasses, besides having fundamental methodolog...
Article
Abstract Increased plant mortality in temperate seagrass populations has been recently observed after summer heatwaves, although the underlying causes of plant death are yet unknown. The potential energetic constrains resulting from anomalous thermal events could be the reason that triggered seagrass mortality, as demonstrated for benthic invertebr...
Article
Full-text available
Global warming is emerging as one of the most critical threats to terrestrial and marine species worldwide. This study assessed the effects of simulated warming events in culture on two seagrass species, Posidonia oceanica and Cymodocea nodosa, which play a key role in coastal ecosystems of the Mediterranean Sea. Changes in fatty acids as key metab...
Article
Full-text available
Seagrasses are key marine foundation species, currently declining due to the compounded action of global and regional anthropogenic stressors. Eutrophication has been associated with seagrass decline, while grazing has been traditionally considered to be a natural disturbance with a relatively low impact on seagrasses. In the recent years, this ass...
Article
Posidonia oceanica meadows are facing global threats mainly due to episodic heat waves. In a mesocosm experiment, we aimed at disentangling the molecular response of P. oceanica under increasing temperature (20 °C–32 °C). The experiment was carried out in spring, when heat waves can potentially occur and plants are putatively more sensitive to heat...
Article
Full-text available
Seagrasses are globally declining and often their loss is due to synergies among stressors. We investigated the interactive effects of eutrophication and burial on the Mediterranean seagrass, Posidonia oceanica. A field experiment was conducted to estimate whether shoot survival depends on the interactive effects of three levels of intensity of bot...
Article
Sexual reproduction in predominantly clonal marine plants increases recombination favoring adaptation and enhancing species resilience to environmental change. Recent studies of the seagrass Posidonia oceanica suggest that flowering intensity and frequency are correlated with warming events associated with global climate change, but these studies h...
Article
Seawater warming associated to the ongoing climate change threatens functioning and survival of keystone coastal benthic species such as seagrasses. Under elevated temperatures, the production of reactive oxygen species (ROS) is increased and plants must activate their antioxidant defense mechanisms to protect themselves from oxidative damage. Here...
Article
Full-text available
The endemic Mediterranean seagrass Posidonia oceanica is highly threatened by the increased frequency and intensity of heatwaves. Meadows of the species offer a unique opportunity to unravel mechanisms marine plants activate to cope transient warming, since their wide depth distribution impose divergent heat-tolerance. Understanding these mechanism...
Article
Seagrasses form extensive meadows in shallow coastal waters and are among the world's most productive ecosystems. Seagrasses can produce both clonally and sexually, and flowering has long been considered infrequent, but important for maintaining genetically diverse stands. Here we investigate the molecular mechanisms involved in flowering of the se...
Article
The Mediterranean endemic seagrass Posidonia oceanica is generally regarded as a stenohaline species, highly sensitive to salinity increments; however, in a few particular cases, natural populations can grow under salinity levels above its normal threshold of tolerance. One such case is a population of P. oceanica in the southeastern coastal region...
Article
Full-text available
Here we present the results of a multiple organizational level analysis conceived to identify acclimative/adaptive strategies exhibited by the seagrass Posidonia oceanica to the daily fluctuations in the light environment, at contrasting depths. We assessed changes in photophysiological parameters, leaf respiration, pigments, and protein and mRNA e...
Article
Full-text available
Phenotypic differences among populations of the same species reflect selective responses to ecological gradients produced by variations in abiotic and biotic factors. Moreover, they can also originate from genetic differences among populations, due to a reduced gene flow. In this study, we examined the extent of differences in photo-acclimative tra...
Conference Paper
Full-text available
Oxidative stress response of P. oceanica and C. nodosa to short-term heat stress Posidonia oceanica and Cymodocea nodosa are marine angiosperms widely distributed in the Mediterranean Sea. As habitat builders, they have crucial importance for coastal ecosystems; however because of human activities and environmental changes populations are in regres...