Sass-Gyarmati Andrea - Academia.edu (original) (raw)

Papers by Sass-Gyarmati Andrea

The first checklist of liverworts and hornworts is provided for the Republic of Fiji. Geographic ... more The first checklist of liverworts and hornworts is provided for the Republic of Fiji. Geographic coverage includes the islands Viti Levu, Vanua Levu, Taveuni, Kadavu, and Ovalau and surrounding smaller islands. There remain many localities in Fiji, including entire islands, which have never or scarcely been collected for this group of plants. We report 11 hornwort taxa and 280 liverwort taxa. An additional 34 taxa previously reported from Fiji are either rejected or noted as doubtful records. The list is based on a compilation of over 250 literature references, including monographs, broader regional studies and molecular investigations. Despite its apparent diversity, the liverwort and hornwort flora of Fiji has received negligible attention, and few publications exist that have focused solely on this group of islands. Knowledge of the liverwort and hornwort flora, of Fiji and regionally for the islands of the South Pacific, remains too poor to reliably comment about range-restricte...

Bryophyte Diversity and Evolution, 2003

Three species are new for the Northern Territory of Australia: Acrolejeunea securifolia (Nees) St... more Three species are new for the Northern Territory of Australia: Acrolejeunea securifolia (Nees) Steph. ex Watts ssp. securifolia, Archilejeunea planiuscula (Mitt.) Steph. and Mastigolejeunea ligulata (Lehm. & Lindenb.) Schiffn., and one for Queensland: Thysananthus australis (Steph.) B. Thiers & Gradst. New records of species are given, which were previously known only from one or very few localities, including: Caudalejeunea cristiloba (Steph.) Gradst. and Lopholejeunea plicatiscypha (Taylor) Steph.

A new species of Lopholejeunea is described from the Rairaimatiku Plateau, Viti Levu Island, Fiji... more A new species of Lopholejeunea is described from the Rairaimatiku Plateau, Viti Levu Island, Fiji. Lopholejeunea pocsii is distinguihed from the related L. colensoi Steph. by its lobule structure,underleaf insertion and by its bracteole and perianth characters. Lopholejeunea / Lejeuneaceae / Hepaticae / Fiji Résumé-Une nouvelle espèce de Lopholejeunea est décrite du Plateau Rairaimatiku île Viti Levu, Fiji. L. pocsii se distingue de l'espèce voisine L. colensoi Steph. par la structure des lobules,p ar l'insertion de l'amphigastre,e t par les caractères de la bractéole et du périanthe.

Nova Hedwigia, 2008

ABSTRACT A new species of Lopholejeunea, L. vojtkoana is described from Kadavu (Kandavu) Island, ... more ABSTRACT A new species of Lopholejeunea, L. vojtkoana is described from Kadavu (Kandavu) Island, Fiji. L. vojtkoana is distinguished from the related L. eulopha Steph. by its lobule structure, underleaf insertion and by perianth characters.

Acta Botanica Hungarica, 2005

The internal phylogeny and cryptic species of the taxon known as Ptychanthus striatus (Lehm. et L... more The internal phylogeny and cryptic species of the taxon known as Ptychanthus striatus (Lehm. et Lindenb.) Nees were investigated using morphology as well as phylogenetic studies based on internal transcribed spacer II (ITS2) sequences. Both parsimony analysis and analysis based on Bayesian inference were performed. They both distinguished the African specimens from the Asian-Oceanian specimens, but resolved the specimens differently within these groups. Different alignment methods were compared, and the implied alignment obtained from the direct optimisation by program POY was found to produce a shorter tree in parsimony analysis than the DiAlign or manually improved Clustal alignments. Based on oil body characters and molecular evidence, the African population of Ptychanthus can be distinguished from the Asian-Oceanian one at the species level. The earliest applicable name for the African taxon is Ptychanthus africanus Steph.

Forty-eight species of liverworts (Marchantiophyta) are reported as new to the Fiji Islands. Thes... more Forty-eight species of liverworts (Marchantiophyta) are reported as new to the Fiji Islands. These records increase the number of Fijian liverworts by over 20%. Extensions of range within Fiji are reported for an additional 39 taxa already known to occur within the Fijian archipelago. These records indicate that the Fijian flora is understudied and many localities in Fiji, including entire islands, remain under-collected for bryophytes. Metalejeunea crassitexta (J.B.Jack et Steph.) Pocs is proposed as a new combination, and Lejeunea microstipula Steph. is reduced to a synonym of Lejeunea exilis (Reinw., Blume et Nees) Grolle.

Review of Palaeobotany and Palynology, 2015

We describe a diverse taphocoenosis in a piece of Mexican amber that includes two morphotypes ass... more We describe a diverse taphocoenosis in a piece of Mexican amber that includes two morphotypes assignable to the leafy liverwort family Lejeuneaceae, an angiosperm seed, a putative bud scale, dematiaceous hyphomycetes as well as dipteran and hymenopteran insects belonging to Phoridae (genera Megaselia, Puliciphora, and Apocephalus), Cecidomyiidae, Psychodidae and Mymaridae (genus Alaptus). Liverworts are known from eight amber deposits but have only rarely been observed in Mexican amber. A perianth-bearing liverwort gametophyte in the piece of amber is classified as Mastigolejeunea extincta sp. nov., and several sterile gametophytes are described as Ceratolejeunea sublaetefusca sp. nov. With these new species, approximately 60 liverworts have been described from amber to date. Remarkable syninclusions include a hyphomycete which is the first darkly-pigmented filamentous microfungus with clear reproductive structures reported from Mexican amber. Fourier Transform Infrared Spectroscopy of a fragment of the investigated amber piece revealed a "Type I" Mexican amber. A whole solubility test suggested a mature resin, although the resin was not much oxidized during the process of amberization. Available evidence suggests that the amber was produced by a Hymenaea tree and that the resin was exposed on its bark, behaving as a sticky trap for insects and vascular plant fragments, and also embedding some epiphytic liverworts and fungi.

ABSTRACT The Vargyas Gorge is situated in the northern part of the Persány Mountains (Eastern Car... more ABSTRACT The Vargyas Gorge is situated in the northern part of the Persány Mountains (Eastern Carpathians in Romania), close to the village Homoródalmás (Mereşti) on the borders of two counties (Harghita and Covasna). The gorge, which is cut by the Vargyas brook into a Jurassic and Cretacic limestone mass, is about 3,5 km long and over 200m high in certain places, between the altitudes of 930 metres above sea level, with an average temperature of 7,4°C with annual precipitation of 1460 mm. Authors present an account of its flora based on literatures and on their collecting data. A detailed phytogeographical analysis will follow together with a vegetation description.

A new species of Archilejeunea is described from t he Mananara North Biosphere Reserve of Northea... more A new species of Archilejeunea is described from t he Mananara North Biosphere Reserve of Northeast-Madagascar. Archilejeunea helenae is distinguished from the related A.alata Steph. by its broad and short winged perianth keels,by its very regular pinnate branching,always well developed leaf lobuli and by its overall larger cell size.

Cryptogamie, Bryologie, 2014

ABSTRACT A new Acanthocoleus R.M. Schust. species is described from the afroalpine belt of Mount ... more ABSTRACT A new Acanthocoleus R.M. Schust. species is described from the afroalpine belt of Mount Elgon, Uganda. Acanthocoleus elgonensis Gyarmati et Pocs is distinguished from the related A. madagascariensis (Steph.) Kruijt by stem, leaf lobule and underleaf structure, pigmentation of cell walls and finally by the shape of female bracts.

Journal of Plant Physiology, 2014

Osmotic stress responses of water content, photosynthetic parameters and biomass production were ... more Osmotic stress responses of water content, photosynthetic parameters and biomass production were investigated in wheat-Aegilops biuncialis amphiploids and in wheat genotypes to clarify whether they can use to improve the drought tolerance of bread wheat. A decrease in the osmotic pressure of the medium resulted in considerable water loss, stomatal closure and a decreased CO 2 assimilation rate for the wheat genotypes, while the changes in these parameters were moderate for the amphiploids. Maximal assimilation rate was maintained at high level even under severe osmotic stress in the amphiploids, while it decreased substantially in the wheat genotypes. Nevertheless, the effective quantum yield of PS II was higher and the quantum yield of non-photochemical quenching of PS II and PS I was lower for the amphiploids than for the wheat cultivars. Parallel with this, higher cyclic electron flow was detected in wheat than in the amphiploids. The elevated photosynthetic activity of amphiploids under osmotic stress conditions was manifested in higher biomass production by roots and shoots as compared to wheat genotypes. These results indicate that the drought-tolerant traits of Ae. biuncialis can be manifested in the wheat genetic background and these amphiploids are suitable genetic materials for improving drought tolerance of wheat.

Cryptogamie Bryologie, 2002

Symbiezidium barbiflorum (Lindenb. & Gottsche) A.Evans, espece repandue dans les Neotropiques... more Symbiezidium barbiflorum (Lindenb. & Gottsche) A.Evans, espece repandue dans les Neotropiques, est decouverte sur la cote orientale de Madagascar. Le perianthe aile et peu lacinie ainsi que l'insertion en forme de U de l'amphigastre la distinguent de l'espece malgache endemique S. madagascariense Steph. Symbiezidium barbiflorum est un nouvel exemple d'especes afro-americaine disjointe, absente du continent africain.

Folia Cryptogamica Estonica, 2008

The simple thalloid hepatic, Metzgeria violacea (Ach.) Dumort., before known also under the name ... more The simple thalloid hepatic, Metzgeria violacea (Ach.) Dumort., before known also under the name of Metzgeria fruticulosa (Dicks.) A. Evans, is an oceanic (“atlantic”) geographical element. Its distribution is known from Tierra del Fuego, Valdivia, Argentina and from Peru ...

The first checklist of liverworts and hornworts is provided for the Republic of Fiji. Geographic ... more The first checklist of liverworts and hornworts is provided for the Republic of Fiji. Geographic coverage includes the islands Viti Levu, Vanua Levu, Taveuni, Kadavu, and Ovalau and surrounding smaller islands. There remain many localities in Fiji, including entire islands, which have never or scarcely been collected for this group of plants. We report 11 hornwort taxa and 280 liverwort taxa. An additional 34 taxa previously reported from Fiji are either rejected or noted as doubtful records. The list is based on a compilation of over 250 literature references, including monographs, broader regional studies and molecular investigations. Despite its apparent diversity, the liverwort and hornwort flora of Fiji has received negligible attention, and few publications exist that have focused solely on this group of islands. Knowledge of the liverwort and hornwort flora, of Fiji and regionally for the islands of the South Pacific, remains too poor to reliably comment about range-restricte...

Bryophyte Diversity and Evolution, 2003

Three species are new for the Northern Territory of Australia: Acrolejeunea securifolia (Nees) St... more Three species are new for the Northern Territory of Australia: Acrolejeunea securifolia (Nees) Steph. ex Watts ssp. securifolia, Archilejeunea planiuscula (Mitt.) Steph. and Mastigolejeunea ligulata (Lehm. & Lindenb.) Schiffn., and one for Queensland: Thysananthus australis (Steph.) B. Thiers & Gradst. New records of species are given, which were previously known only from one or very few localities, including: Caudalejeunea cristiloba (Steph.) Gradst. and Lopholejeunea plicatiscypha (Taylor) Steph.

A new species of Lopholejeunea is described from the Rairaimatiku Plateau, Viti Levu Island, Fiji... more A new species of Lopholejeunea is described from the Rairaimatiku Plateau, Viti Levu Island, Fiji. Lopholejeunea pocsii is distinguihed from the related L. colensoi Steph. by its lobule structure,underleaf insertion and by its bracteole and perianth characters. Lopholejeunea / Lejeuneaceae / Hepaticae / Fiji Résumé-Une nouvelle espèce de Lopholejeunea est décrite du Plateau Rairaimatiku île Viti Levu, Fiji. L. pocsii se distingue de l'espèce voisine L. colensoi Steph. par la structure des lobules,p ar l'insertion de l'amphigastre,e t par les caractères de la bractéole et du périanthe.

Nova Hedwigia, 2008

ABSTRACT A new species of Lopholejeunea, L. vojtkoana is described from Kadavu (Kandavu) Island, ... more ABSTRACT A new species of Lopholejeunea, L. vojtkoana is described from Kadavu (Kandavu) Island, Fiji. L. vojtkoana is distinguished from the related L. eulopha Steph. by its lobule structure, underleaf insertion and by perianth characters.

Acta Botanica Hungarica, 2005

The internal phylogeny and cryptic species of the taxon known as Ptychanthus striatus (Lehm. et L... more The internal phylogeny and cryptic species of the taxon known as Ptychanthus striatus (Lehm. et Lindenb.) Nees were investigated using morphology as well as phylogenetic studies based on internal transcribed spacer II (ITS2) sequences. Both parsimony analysis and analysis based on Bayesian inference were performed. They both distinguished the African specimens from the Asian-Oceanian specimens, but resolved the specimens differently within these groups. Different alignment methods were compared, and the implied alignment obtained from the direct optimisation by program POY was found to produce a shorter tree in parsimony analysis than the DiAlign or manually improved Clustal alignments. Based on oil body characters and molecular evidence, the African population of Ptychanthus can be distinguished from the Asian-Oceanian one at the species level. The earliest applicable name for the African taxon is Ptychanthus africanus Steph.

Forty-eight species of liverworts (Marchantiophyta) are reported as new to the Fiji Islands. Thes... more Forty-eight species of liverworts (Marchantiophyta) are reported as new to the Fiji Islands. These records increase the number of Fijian liverworts by over 20%. Extensions of range within Fiji are reported for an additional 39 taxa already known to occur within the Fijian archipelago. These records indicate that the Fijian flora is understudied and many localities in Fiji, including entire islands, remain under-collected for bryophytes. Metalejeunea crassitexta (J.B.Jack et Steph.) Pocs is proposed as a new combination, and Lejeunea microstipula Steph. is reduced to a synonym of Lejeunea exilis (Reinw., Blume et Nees) Grolle.

Review of Palaeobotany and Palynology, 2015

We describe a diverse taphocoenosis in a piece of Mexican amber that includes two morphotypes ass... more We describe a diverse taphocoenosis in a piece of Mexican amber that includes two morphotypes assignable to the leafy liverwort family Lejeuneaceae, an angiosperm seed, a putative bud scale, dematiaceous hyphomycetes as well as dipteran and hymenopteran insects belonging to Phoridae (genera Megaselia, Puliciphora, and Apocephalus), Cecidomyiidae, Psychodidae and Mymaridae (genus Alaptus). Liverworts are known from eight amber deposits but have only rarely been observed in Mexican amber. A perianth-bearing liverwort gametophyte in the piece of amber is classified as Mastigolejeunea extincta sp. nov., and several sterile gametophytes are described as Ceratolejeunea sublaetefusca sp. nov. With these new species, approximately 60 liverworts have been described from amber to date. Remarkable syninclusions include a hyphomycete which is the first darkly-pigmented filamentous microfungus with clear reproductive structures reported from Mexican amber. Fourier Transform Infrared Spectroscopy of a fragment of the investigated amber piece revealed a "Type I" Mexican amber. A whole solubility test suggested a mature resin, although the resin was not much oxidized during the process of amberization. Available evidence suggests that the amber was produced by a Hymenaea tree and that the resin was exposed on its bark, behaving as a sticky trap for insects and vascular plant fragments, and also embedding some epiphytic liverworts and fungi.

ABSTRACT The Vargyas Gorge is situated in the northern part of the Persány Mountains (Eastern Car... more ABSTRACT The Vargyas Gorge is situated in the northern part of the Persány Mountains (Eastern Carpathians in Romania), close to the village Homoródalmás (Mereşti) on the borders of two counties (Harghita and Covasna). The gorge, which is cut by the Vargyas brook into a Jurassic and Cretacic limestone mass, is about 3,5 km long and over 200m high in certain places, between the altitudes of 930 metres above sea level, with an average temperature of 7,4°C with annual precipitation of 1460 mm. Authors present an account of its flora based on literatures and on their collecting data. A detailed phytogeographical analysis will follow together with a vegetation description.

A new species of Archilejeunea is described from t he Mananara North Biosphere Reserve of Northea... more A new species of Archilejeunea is described from t he Mananara North Biosphere Reserve of Northeast-Madagascar. Archilejeunea helenae is distinguished from the related A.alata Steph. by its broad and short winged perianth keels,by its very regular pinnate branching,always well developed leaf lobuli and by its overall larger cell size.

Cryptogamie, Bryologie, 2014

ABSTRACT A new Acanthocoleus R.M. Schust. species is described from the afroalpine belt of Mount ... more ABSTRACT A new Acanthocoleus R.M. Schust. species is described from the afroalpine belt of Mount Elgon, Uganda. Acanthocoleus elgonensis Gyarmati et Pocs is distinguished from the related A. madagascariensis (Steph.) Kruijt by stem, leaf lobule and underleaf structure, pigmentation of cell walls and finally by the shape of female bracts.

Journal of Plant Physiology, 2014

Osmotic stress responses of water content, photosynthetic parameters and biomass production were ... more Osmotic stress responses of water content, photosynthetic parameters and biomass production were investigated in wheat-Aegilops biuncialis amphiploids and in wheat genotypes to clarify whether they can use to improve the drought tolerance of bread wheat. A decrease in the osmotic pressure of the medium resulted in considerable water loss, stomatal closure and a decreased CO 2 assimilation rate for the wheat genotypes, while the changes in these parameters were moderate for the amphiploids. Maximal assimilation rate was maintained at high level even under severe osmotic stress in the amphiploids, while it decreased substantially in the wheat genotypes. Nevertheless, the effective quantum yield of PS II was higher and the quantum yield of non-photochemical quenching of PS II and PS I was lower for the amphiploids than for the wheat cultivars. Parallel with this, higher cyclic electron flow was detected in wheat than in the amphiploids. The elevated photosynthetic activity of amphiploids under osmotic stress conditions was manifested in higher biomass production by roots and shoots as compared to wheat genotypes. These results indicate that the drought-tolerant traits of Ae. biuncialis can be manifested in the wheat genetic background and these amphiploids are suitable genetic materials for improving drought tolerance of wheat.

Cryptogamie Bryologie, 2002

Symbiezidium barbiflorum (Lindenb. & Gottsche) A.Evans, espece repandue dans les Neotropiques... more Symbiezidium barbiflorum (Lindenb. & Gottsche) A.Evans, espece repandue dans les Neotropiques, est decouverte sur la cote orientale de Madagascar. Le perianthe aile et peu lacinie ainsi que l'insertion en forme de U de l'amphigastre la distinguent de l'espece malgache endemique S. madagascariense Steph. Symbiezidium barbiflorum est un nouvel exemple d'especes afro-americaine disjointe, absente du continent africain.

Folia Cryptogamica Estonica, 2008

The simple thalloid hepatic, Metzgeria violacea (Ach.) Dumort., before known also under the name ... more The simple thalloid hepatic, Metzgeria violacea (Ach.) Dumort., before known also under the name of Metzgeria fruticulosa (Dicks.) A. Evans, is an oceanic (“atlantic”) geographical element. Its distribution is known from Tierra del Fuego, Valdivia, Argentina and from Peru ...