Phd candidate in the working group Biodiversity and Evolution of Plants
Phd thesis
My PhD is part of the project DynaCom (Spatial community ecology in highly dynamic landscapes: from island biogeography to metaecosystems) funded by the German Research Foundation. My focus is to understand the spatial distribution of the plant-fungus interaction in salt marshes in northern Germany. We hypothesize that the symbiosis between plant and fungi in salt marshes can increase probability of colonization of both partners (symbiosis as dispersal trait), persistence in the habitat (symbiosis as feeding trait) and the ability to tolerate changing environmental conditions (symbiosis as tolerance trait). For this purpose, traits such as plant or fungal partner, cell size and genome size will be determined for a number of halophytes of different ploidy levels and two main groups of fungi will be targeted: mycorrhizae and the dark septate endophytes (DSE).
Curriculum vitae
2014
B. Sc. Forest Engineering, Universidade Federal Rural do Rio de Janeiro, Brazil
2018
M. Sc. Mediterranean Forestry and Natural Resources Management, University of Valladolid (Spain)
D. R. Gonçalves, R. Pena, G. Zotz, and D. C. Albach, "Effects of fungal inoculation on the growth of Salicornia (Amaranthaceae) under different salinity conditions" Symbiosis, vol. 84, iss. 2.
2021.
doi: 10.1007/s13199-021-00783-3
@Article{Goncalves2021,
author = {Gon{\c{c}}alves, Danilo Reis and Pena, Rodica and Zotz, Gerhard and Albach, Dirk C.},
journal = {Symbiosis},
title = {{Effects of fungal inoculation on the growth of Salicornia (Amaranthaceae) under different salinity conditions}},
year = {2021},
issn = {18787665},
number = {2},
pages = {195--208},
volume = {84},
abstract = {Endophytic fungi are known to be present in roots of salt marsh plants, but their ecological role in this symbiosis is still largely unknown. Generally considered parasitic or saprophytic, they may still be mutualistic, at least under certain circumstances. Among salt marsh plants, Salicornia spp. are recognized as particularly salt-tolerant and their frequent colonization by root endophytes has also been reported. This study aimed to investigate whether the inoculation of Salicornia with different root endophytes isolated from field-collected Salicornia affects biomass production, nutrient uptake and photosynthesis (assessed via chlorophyll fluorescence). In addition, we investigated whether fungal inoculation confers tolerance to salt stress given that endophytes are suggested to increase salt tolerance and improve plant fitness in other less salt-tolerant plants. The inoculation of Salicornia with an isolate of the genus Stemphylium positively influenced total biomass production and nitrogen concentration in roots at optimum salinity condition (150 mM NaCl). However, under salt stress (650 mM NaCl), no significant effects of fungal inoculation on biomass production and photosynthesis were observed. Further, positive and negative effects of fungal inoculation on nutrient concentrations were observed in roots and shoots, respectively. Our results indicate that different endophytic fungi and their interaction result in distinct fungal species-specific plant growth responses of Salicornia under different growth conditions.},
doi = {10.1007/s13199-021-00783-3},
file = {:C$\backslash$:/Users/reisd/OneDrive/Desktop/Gon{\c{c}}alves2021{\_}Article{\_}EffectsOfFungalInoculationOnTh.pdf:pdf},
keywords = {Alternaria, Root endophytic fungi, Salicornia, Salt marsh, Salt stress, Stemphylium},
modificationdate = {2021-09-15T16:48:07},
publisher = {Symbiosis},
url = {http://dx.doi.org/10.1007/s13199-021-00783-3},
}
A. L. Jesus, A. V. Marano, D. R. Gonçalves, G. H. Jerônimo, and C. L. A. Pires-Zottarelli, "Two new species of Halophytophthora from Brazil" Mycological Progress, vol. 18, iss. 12.
2019.
doi: 10.1007/s11557-019-01523-0
@Article{Jesus2019,
author = {Jesus, Ana L. and Marano, Agostina V. and Gon{\c{c}}alves, Danilo R. and Jer{\^{o}}nimo, Gustavo H. and Pires-Zottarelli, Carmen L.A.},
journal = {Mycological Progress},
title = {{Two new species of Halophytophthora from Brazil}},
year = {2019},
issn = {18618952},
number = {12},
pages = {1411--1421},
volume = {18},
abstract = {During a survey of oomycetes in a mangrove area of S{\~{a}}o Paulo state, Brazil, a high number of isolates of Halophytophthora and related genera were recovered from leaves and water samples. In this study, we analysed the morphology and phylogenetic relationships of the isolates of Halophytophthora along with four ex-types provided by CBS-KNAW Culture Collection. Maximum likelihood and Bayesian analyses of the internal transcribed spacer (ITS) and large subunit (LSU) rDNA regions confirmed previous evidence of the polyphyly of the genus and revealed the presence of two yet undescribed species. The two new species, Halophytophthora souzae and H. insularis, belong to the Halophytophthora sensu stricto clade and are described herein based on their morphology and/or phylogenetic position.},
doi = {10.1007/s11557-019-01523-0},
file = {:C$\backslash$:/Users/reisd/OneDrive/Desktop/Jesus2019{\_}Article{\_}TwoNewSpeciesOfHalophytophthor (1).pdf:pdf},
keywords = {ITS, LSU, Mangroves, Oomycota, Peronosporales},
modificationdate = {2021-09-15T16:47:51},
publisher = {Mycological Progress},
url = {http://dx.doi.org/10.1007/s11557-019-01523-0},
}
D. R. Gonçalves, A. L. de Jesus, and C. L. A. Pires-Zottarelli, "Pythium and Phytopythium species associated with hydroponically grown crops around the City of São Paulo, Brazil" Tropical Plant Pathology, vol. 41, iss. 6.
2016.
doi: 10.1007/s40858-016-0116-2
@Article{Goncalves2016,
author = {Gon{\c{c}}alves, Danilo R. and de Jesus, Ana L. and Pires-Zottarelli, Carmen L.A.},
journal = {Tropical Plant Pathology},
title = {{Pythium and Phytopythium species associated with hydroponically grown crops around the City of S{\~{a}}o Paulo, Brazil}},
year = {2016},
issn = {19832052},
number = {6},
pages = {397--405},
volume = {41},
abstract = {A survey of Pythium and Phytopythium species was conducted in hydroponics systems located in the metropolitan region of S{\~{a}}o Paulo and nearby cities, SP, Brazil. Different samples including water from artesian well, nutrient solution, substrates used for seedlings production and roots of hydroponically grown crops were collected and baited for Pythium and Phytopythium recovery. It was possible to isolate Pythium species from the four types of samples while Phytopythium species were isolated only from the substrates. The species were identified according to their morphological features and phylogenetic placement in a combined analysis of the ITS rDNA and COI mDNA regions within eight different taxa: Pythium kashmirense, P. middletonii, P. oopapillum, P. periplocum, P. segnitium, Pythium group F, Phytopythium helicoides and Phy. vexans. The isolates identified as Pythium group F were the most frequent species. While Pythium species were distributed in clades B, D and E, Phytopythium were distributed in clades 2 and 3. This study brings important information about the diversity of these species in hydroponic systems in Brazil and provides sequences of species rarely reported such as P. kashmirense, P. oopapillum and P. segnitium.},
doi = {10.1007/s40858-016-0116-2},
file = {:C$\backslash$:/Users/reisd/OneDrive/Desktop/Gon{\c{c}}alves2016{\_}Article{\_}PythiumAndPhytopythiumSpeciesA.pdf:pdf},
keywords = {Fungal diversity, Hydroponics, Oomycetes},
publisher = {Tropical Plant Pathology},
url = {http://dx.doi.org/10.1007/s40858-016-0116-2},
}
