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Introduction
Additional affiliations
February 2016 - present
November 2010 - December 2015
Szent Istvan Egyetem, Hungary
Position
- Effect of the crop rotation practice on the biodiversity of Arbuscular Mycorrhiza Fungi (AMF) and on the soil microbial communities
November 2010 - December 2015
Publications
Publications (67)
Glomus mongioiense, a new species of arbuscular mycorrhizal fungi (AMF) in the family Glomeraceae, was isolated from rhizosphere soil collected from a meadow in the Italian Alps. The novelty of the species and its relationship with other species of the same genus were obtained by morphological and phylogenetic (45S nrDNA + RPB1 gene) analyses. Two...
The Upper Silesia region of Poland is one of the most extensively altered regions of Europe due to human activity, especially coal mining. (2): We used cluster analysis to examine the floristic composition of three classified forest communities: forests developed on post-coal mine mineral heaps (HF), mixed deciduous forests (DECI), and managed seco...
Morphological and phylogenetic (45S nrDNA+RPB1 gene) analyses of three glomoid
spore-producing arbuscular mycorrhizal fungi revealed the presence of two new species belonging to the genus Glomus in the family Glomeraceae. In the field, Glomus highlandensis sp. nov. was found in a saltmarsh of the Scottish Highlands and in maritime sand dunes of th...
Studies of the morphology and the 45S nuc rDNA phylogeny of three potentially undescribed arbuscular mycorrhizal fungi (phylum Glomeromycota) grown in cultures showed that one of these fungi is a new species of the genus Diversispora in the family Diversisporaceae; the other two fungi are new Scutellospora species in Scutellosporaceae. Diversispora...
Coal mine heaps represent unique novel environments, suitable for studying plant succession and its influence on the activity of microbes inhabiting the rhizosphere. Our aim was to verify if the functional diversity and catabolic activity of soil microorganisms would increase along with the plant succession from non-vegetated and forbs-dominated to...
The Global Consortium for the Classification of Fungi and fungus-like taxa is an international initiative of more than 550 mycologists to develop an electronic structure for the classification of these organisms. The members of the Consortium originate from 55 countries/regions worldwide, from a wide range of disciplines, and include senior, mid-ca...
Alternate wetting and drying (AWD) system, in which water has been reduced by approximately 35% with an increased occurrence of beneficial arbuscular mycorrhizal (AM) symbiosis and no negative impact on rice yield, was proposed to utilize water and nutrients more sustainable. In this study, we selected six rice cultivars (Centauro, Loto, Selenio, V...
Morphological analyses of three glomoid spore-producing fungi suggested that two of them were undescribed species of Glomeraceae (phylum Glomeromycota ), and the third differed slightly from Dominikia glomerocarpica and Epigeocarpum crypticum , recently described in Glomeraceae . The first two fungi originated from the Mediterranean Sea sand dunes...
Plant–microbial relations have not yet been fully disclosed in natural or seminatural ecosystems, nor in novel ecosystems developing spontaneously on post-coal mine heaps. The aim of this study was to determine which factor, biotic (plant taxonomic diversity vs. plant functional diversity) or abiotic (physicochemical substrate parameters), affects...
Morphological analyses of three glomoid spore-producing fungi suggested that two of them are undescribed species of Glomeraceae or glomoid spore-producing members of Entrophospora in Entrophosporaceae (phylum Glomeromycota), and the third differed slightly from Dominikia glomerocarpica and Epigeocarpum crypticum , recently described in Glomeraceae....
As a result of phylogenomic, phylogenetic, and morphological analyses of members of the genus Claroideoglomus, four potentially new glomoid spore-producing species, and Entrophospora infrequens, a new order, Entrophosporales, with one family, Entrophosporaceae (= Claroideoglomeraceae), was erected in the phylum Glomeromycota. The phylogenomic analy...
Changes in soil microbial communities in response to hydrocarbon pollution are critical indicators of disturbed ecosystem conditions. A core component of these communities that is functionally adjusted to the life-history traits of the host and environmental factors consists of arbuscular mycorrhizal fungi (AMF). AMF communities associated with Poa...
The genus Acaulospora has undergone many updates since it was first described; however, there are some missing pieces in the phylogenetic relationships among Acaulospora species. The present review aimed to: (i) understand the evolutionary meaning of their different spore wall ornamentations; (ii) define the best molecular marker for phylogenetic i...
Dark septate endophytes (DSEs) comprise a diverse and ubiquitous group of fungal generalists with broad habitat niches that robustly colonize the roots of plants in stressful environments. DSEs possess adaptation strategies that determine their high tolerance to heavy metal (HM) contamination, drought, and salinity. Most DSEs developed efficient me...
Three new species of arbuscular mycorrhizal fungi of the genus Diversispora (phylum Glomeromycota) were described based on their morphology and molecular phylogeny. The phylogeny was inferred from the analyses of the partial 45S rDNA sequences (18S-ITS-28S) and the largest subunit of RNA polymerase II (rpb1) gene. These species were associated in t...
Two glomoid spore-producing arbuscular mycorrhizal fungi were grown in single-species cultures that were established from soil-borne spores collected from high altitude (2800 m a.s.l.) of Tibet Plateau, China. Phylogenetic analyses were performed with sequences of nuclear rDNA (spanning the partial small subunit, whole internal transcribed spacer,...
This paper provides an updated classification of the Kingdom Fungi (including fossil fungi) and fungus-like taxa. Five-hundred and twenty-three (535) notes are provided for newly introduced taxa and for changes that have been made since the previous outline. In the discussion, the latest taxonomic changes in Basidiomycota are provided and the class...
Climate change has become a fact, and its effects are felt by people around the globe. Particularly dangerous are prolonged droughts, since they not only have a negative effect on the development of plants, but also become the cause of many dangerous diseases. The intensive use of fertilizers and pesticides or melioration as a support for agricultu...
Two glomoid spore-producing arbuscular mycorrhizal fungi were grown in single-species cultures established from soil-borne spores collected from high altitude (2,800 m a.s.l.) of Tibet Plateau, China. Phylogenetic analyses were performed with sequences of nuclear rDNA (spanning the partial small subunit, whole internal transcribed spacer, and parti...
Phylogenetic analyses of sequences of the nuc rDNA small subunit (18S), internal transcribed spacer (ITS1-5.8S-ITS2 = ITS), and large subunit (28S) region (= 18S-ITS-28S), as well as sequences of this region concatenated with sequences of the largest subunit of RNA polymerase II (rpb1) gene proved that the species originally described as Acaulospor...
Examination of fungal specimens collected in the Atlantic rain forest ecosystems of Northeast Brazil revealed many potentially new epigeous and semihypogeous glomerocarp-producing species of the phylum Glomeromycota. Among them were two fungi that formed unorganized epigeous glomerocarps with glomoid spores of almost identical morphology. The sole...
Arbuscular mycorrhizal fungi (AMF) are ubiquitous mutualistic plant symbionts that promote plant growth and protect them from abiotic stresses. Studies on AMF-assisted phytoremediation have shown that AMF can increase plant tolerance to the presence of hydrocarbon contaminants by improving plant nutrition status and mitigating oxidative stress. Thi...
Examination of morphological characters of two arbuscular mycorrhizal fungi (AMF; phylum Glomeromycota), which produced clusters with glomoid spores in single-species cultures, suggested that they were undescribed species, one belonging to the genera Dominikia, Microdominikia or Kamienskia, and one to the genus Glomus. Phylogenetic analyses of the...
The role of natural processes on deposited mineral material of post-industrial sites is underestimated. Natural vegetation development on mineral material substratum is an unappreciated way of site management. Due to the classification-based approach to assembly of plant community diversity, the remote sensing methods have limited application. We a...
Arbuscular mycorrhizal fungi (AMF) colonize land plants in almost every ecosystem, even in extreme conditions, such as saline soils. In the present work, we report the mycorrhizal capacity of rhizosphere soils collected in the dry desert region of the Minqin Oasis, located in the northwest of China (Gansu province), which is characterized by severa...
Arbuscular mycorrhizal fungi (AMF) are ubiquitous, obligatory plant symbionts that have a beneficial influence on plants in contaminated environments. This study focused on evaluating the biomass and biodiversity of the AMF and microbial communities associated with Poa trivialis and Phragmites australis plants sampled at an aged site contaminated w...
Dominant species influence both species and functional composition of the vegetation as well as soil properties of the substrate. However, knowledge about the role played by dominant species in the process of shaping their habitat within post-industrial ecosystems is still limited. We aimed to assess the impact of four dominant species (Calamagrost...
We examined three arbuscular mycorrhizal fungi (AMF; phylum Glomeromycota) producing glomoid spores. The mode of formation and morphology of these spores suggested that they represent undescribed species in the genus Rhizoglomus of the family Glomeraceae. Subsequent morphological studies of the spores and molecular phylogenetic analyses of sequence...
The relationship between the size of the particle fractions of the soil substrate and the diversity of the spontaneously developing vegetation was investigated on coal mine spoil heaps in Upper Silesia (Southern Poland). The analyses were based on 2567 research plots of developed spontaneous vegetation and their associated soil substrate samples co...
The relationship between the size of the particle fractions of the soil substrate and the diversity of the spontaneously developing vegetation was investigated on coal mine spoil heaps in Upper Silesia (Southern Poland). The analyses were based on 2567 research plots of developed spontaneous vegetation and their associated soil substrate samples co...
Among the ecological services provided by arbuscular mycorrhizal fungi (AMF), the process of soil aggregation is hypothesized to be partially mediated by glomalin, an alkaline-soluble glycoprotein released by AM fungi into soil during hyphal turnover and after the death of the fungus in the soil. The protein is characterized by abundant production...
Among the ecological services provided by arbuscular mycorrhizal fungi (AMF), the process of soil aggregation is considered to be partially mediated by glomalin, a glycoprotein released by AM fungi into soil during hyphal turnover and after the death of the fungus in the soil. The protein is characterized by abundant production and hydrophobic prop...
Grasses have a considerable potential for the adaptation to various, often extreme, habitat conditions. The aim of the work was to present the vegetation diversity of the coal-mine spoil heaps with the dominant share of grasses and to identify the main factors responsible for this diversity in the aspect of post-industrial land reclamation. The com...
The natural mineral resources (hard coal, sands, dolomites, lead and zinc ores) found in the Silesia and the excavation of them led to significant transformation or even degradation of the environment. The landscape of Upper Silesia was dominated by heaps created as a result of the accumulation of post-mining coal waste. These post-industrial sites...
Given the potential benefits of arbuscular mycorrhizal fungi (AMF) to agricultural productivity, the impact of agricultural practices on the AMF communities has been aim of an increasing number of studies. Using molecular markers on the large subunit rDNA, we investigated the influence of different long-term crop rotations on the structure and comp...
Consumption of chili peppers (Capsicum frutescens L.) represents an important aspect of the daily diet for Vietnamese population because of its high content for antioxidant compounds. To increase the economic benefits related to chili peppers cultivation and reduce negative impacts of the high input agriculture on the environment, biological altern...
In the last decades the management of arbuscular mycorrhizal fungi (AMF) has drawn increasing attention as a biological alternative to chemicals. For a profitable capitalization of these symbiota, a better understanding of which mechanisms could affect the dynamics of AMF communities is required. In the present study we evaluated the influence of d...
Given the attention drawn since several decades by arbuscular mycorrhizal fungi (AMF) as poten-tial biological alternatives to chemicals in a low-input agriculture, much effort has been spent in the investigation of mechanisms influencing the dynamics inside AMF communities. In the present study we evaluated the influence of different crop rotation...
Depending on commodity and region, postharvest diseases can cause considerable economic losses. Although effective against postharvest pathogens, synthetic pesticides have gained increasingly negative attention over the past years from the public opinion. Among natural fungicides, plant derived compounds such as essential oils (EOs), have become to...
The majority of crops in agricultural systems are raised at present with significant input of mineral fertilizers and pesticides. Recently the management of soil biota, like arbuscular mycorrhizal fungi (AMF), as providers of key ecological services has drawn an increasing attention as biological alternative to chemicals. For a profitable capitaliz...
The rising claim for more environmental friendly and healthy agriculture is a strong incentive to find alternative strategies to replace the use of mineral fertilizer and pesticide. Arbuscular mycorrhizal fungi (AMF), a main component of soil microbiota, represent a promising tool as providers of key ecological services. The present work represente...
Magyarországon engedélyezett mikorrhiza oltóanyag paprika terméshozamára gyakorolt hatásának tesztelésekor az oltás szignifikáns növekedést idézett elő két fűszerpaprika (Szegedi, Kalocsai) nedves hajtástömegében, de száraz hajtástömegre vonatkoztatva csak a Szegedi paprikánál mutatkozott szignifikáns hatás. Nedves gyökértömegben, csak a Kalocsai t...
Napjainkban egyre inkább előtérbe kerülnek olyan környezetkímélő növénytermesztési technológiák, melyek biztosítják a műtrágya és növényvédőszer mennyiségének csökkentését a termés hozamának és minőségének megtartása mellett. Az arbuszkuláris mikorrhiza gombák, melyek a szárazföldi növények többségével, köztük termesztett növényeink nagy részével i...
A number of horticultural crop landraces are still grown in Piedmont (NW Italy), despite the dominance of improved cultivars and hybrids. Conservation strategies, both in an ex situ and an in situ context are required to prevent their loss. Here we describe an AFLP-based assessment of the genetic structure of leek, garlic, celery, red beet, cultiva...
Plants in most of the major plant families form symbiotic associations between their roots and mycorrhizal fungi in nature. One type of mycorrhizal association, the arbuscular mycorrhizal (AM) symbiosis, can contribute significantly to plant nutrition by promoting the uptake of phosphorus, nitrogen, resulting in improved plant growth and health. Co...
Nowadays environmentally friendly crop production technologies more and more come to the fore, which ensure the reduction of the amount of fertilizer and pesticide while maintaining crop yield and quality. The arbuscular mycorrhizal (AM) fungi, that form symbioses with the majority of terrestrial plant species including a large proportion of cultiv...
In field conditions, grapevine roots normally are colonized by arbuscular mycorrhizal fungi (AMF). However, little is published, from either morphological or molecular studies, on the species composition of these symbionts in production vineyards. The AMF biodiversity of two Piedmont vineyards (at Neive and Lessona), characterized by different soil...
In field conditions, grapevine roots are colonized by arbuscular mycorrhizal fungi (AMF). Little is known about the species composition of AMF communities associated to grapevine. Recently, the use of the molecular approach has offered new information about the AMF assemblages that live in symbiosis with this important typical Mediterranean fruit c...
Viticulture and wine production represent one of the most relevant agro-food sectors for the Piedmont Region (Italy) in terms of value, with more than 400 millions € a year (12 % of total agricultural production of the Region and the 10 % of the national grape and wine production). The soil where grapevines (Vitis spp.) grow is one of the first par...
We report on the construction of the first linkage maps in Cynara cardunculus var. scolymus (2n=2x=34)by applying a combination of PCR-based markers. A segregating F1 population of 94 individuals was produced by crossing a late-maturing, non-spiny type ('Romanesco C3') and an early-maturing spiny type ('Spinoso di Palermo'). Linkage analysis was ca...
A high copy number of retrotransposon sequences are present and widely dispersed in plant genomes. Their activity generates a considerable degree of sequence polymorphism. Here, we report the cloning of CYRE-5, a long-terminal repeat carrying retrotransposon-like sequence in Cynara cardunculus L., and its exploitation to develop a DNA fingerprintin...
We report on the development of 11 (from database expressed sequence tags) dbEST-derived microsatellite markers in celery (Apium graveolens L. var. dulce). The sequences were obtained from DNA accessions available from GenBank and contained di-, tri- and pentanucleotidic motifs. All the microsatellites were found in expressed sequence tags and they...
Anemone coronaria is an out-crossing species grown widely as an ornamental. The genetic divergence between and within five widely commercialised cultivars ('Cristrina', 'Monalisa', 'Tetraelite', 'Wicabri' and 'Mistral') has been evaluated using AFLP markers. Within each cultivar three-to-eight sub-cultivars, which differ mainly in the colour of the...
Arbuscular mycorrhizal (AM) fungi have long been shown to successfully contribute to phosphate uptake by plant roots. The first step of the fungus-mediated uptake is carried out by fungal membrane Pi transporters (PT) that transfer Pi from the soil into the extraradical hyphae. In the present work we report the identification and characterisation o...
Questions
Questions (10)
I started to add recently the gap partition in my ML analysis of ribosomal genes because it improves the results. To perform my analysis I use the online version of RAXML at Cipres Gateway. I add the gap partition as binary data [1/0] with ascertainment_correction_lewis.
However in my last analysis, where few short sequences were present together with other longer, I obtained an unexpected result. The short sequences clustered together, even if not related, in the wrong position and they were showing very long branches. An other short sequence was in the correct position but also showed a very long branch. The latter sequence covered the ssu-its part, where most of the gaps where present, while the formers covered part of the lsu.
I deduced that the abnormal topology of the tree depended on the missing data in the gap partition, codified by '0' like the absence of gap. In other words the short sequences [not covering the its] had a big part of gap partition identical because of a long list of '0'.
There is a way to overcome this problem without trigging the sequences at the same lenght?
I am analyzing with R some data about root colonization by AM fungi of a plant (5-6 replications) in different environments. I checked the normality of data inside every group (environment) with Saphiro test and, because in some group p was <0.05, I used Levene's test to check the homogeneity of variance. I used the "median" parameter because I was told it should be less normal distribution-dependant. Using median I got a p= 0.6642 (while with "mean" p was 0.000138). To assess if there was any statistical difference I proceeded with a Kruskal-Wallis test with the following results:
Kruskal-Wallis chi-squared = 20.8474, df = 10, p-value = 0.02218
I reject null H.
Supposing I did everything correctly, my problems start when I have to perform a post-hoc test for multiple comparisons. I was suggested to use Dunn's or Conover's test. In both cases I have seen that it's necessary to specify a p.adjust.method. Being totally ignorant about the matter I ask if someone more competent could please suggest with easy words if there is any standard criterion to select the most appropriate method and how to interpretate the results. Thank you very much in advance.
Do you know any webtool to predict the outcome of an amplification (and suggesting the Tm) using primers containing several mismatches (not in the 3' end) with the target sequence?
