New desiccation-tolerant plants, including a grass, in the central highlands of Mexico, accumulate trehalose

2000 ◽  
Vol 48 (2) ◽  
pp. 153 ◽  
Author(s):  
G. Iturriaga ◽  
D. F. Gaff ◽  
R. Zentella
Keyword(s):  
North America ◽  
South America ◽  
Vascular Plants ◽  
Dry Weight ◽  
Resurrection Plant ◽  
Highland Area ◽  
Tolerant Plants ◽  
Tolerant Species ◽  
Representative Species ◽  
First Time

A grass endemic to Mexico, Sporobolus atrovirens, was identified for the first time as a desiccation-tolerant resurrection plant. Nine species of desiccation-tolerant vascular plants were found in the highland area of Mexico, including four species of ferns (Cheilanthes and Pellaea species) and three species of Selaginella. Two other grasses collected were known desiccation-tolerant species distributed from South America (Cordoba) to North America (Georgia). The ferns Ch. bonariensis, Ch. integerrima, Ch. myriophylla and P. sagittata are newly reported as desiccation-tolerant plants. The osmoprotectant trehalose which has been recorded as rare in plants was found in air-dry foliage of representative species of widely different taxa (9–291 µM g–1 dry weight). The flora of desiccation-tolerant species in Mexico is discussed in connection with its ability to accumulate trehalose.

Effects of insecticides on adults and eggs of Drosophila suzukii (Diptera, Drosophilidae)

2017 ◽  
Vol 43 (2) ◽  
pp. 208 ◽  
Author(s):  
Daniele Cristine Hoffmann Schlesener ◽  
Jutiane Wollmann ◽  
Juliano De Bastos Pazini ◽  
Anderson Dionei Grützmacher ◽  
Flávio Roberto Mello Garcia
Keyword(s):  
North America ◽  
South America ◽  
Chemical Control ◽  
Stone Fruits ◽  
Drosophila Suzukii ◽  
Ovicidal Effect ◽  
Mere Presence ◽  
South Of Brazil ◽  
Different Cultures ◽  
First Time

Drosophila suzukii (Diptera, Drosophilidae) is an exotic species, endemic to Asia and currently a pest to small and stone fruits in several countries of North America and Europe. It was detected in 2013 for the first time in South America, in the south of Brazil. Unlike most drosophilids, this species deserves special attention, because the females are capable of oviposit inside healthy fruits, rendering their sale and export prohibited. Despite the confirmed existence of this species in different states of Brazil, this insect is yet been to be given the pest status. Nevertheless, the mere presence of this species is enough to cause concern to producers of small fruits and to justify further investigation for it’s control, especially chemical control for a possible change in status. Therefore, the goal of this work was to evaluate, in laboratory, mortality of D. suzukii adults and ovicidal effect when exposed to different insecticides registered for species of the Tephritidae and Agromyzidae families in different cultures. The insecticides deltamethrin, dimethoate, spinosad, fenitrothion, phosmet, malathion, methidathion, and zeta-cypermethrin resulted in mortality to 100 % of the subjects three days after the treatment (DAT). Regarding the effects over eggs, it was  established that the insecticides fenitrothion, malathion, and methidathion deemed 100 % of the eggs not viable, followed by phosmet and diflubenzuron, which also caused elevated reduction in the eclosion of larvae two DAT.

Northern Canadian mayflies (Insecta; Ephemeroptera), records and descriptions

1981 ◽  
Vol 59 (9) ◽  
pp. 1784-1789 ◽  
Author(s):  
Françoise Harper ◽  
P. P. Harper
Keyword(s):  
North America ◽  
Boreal Forest ◽  
Limited Extent ◽  
James Bay ◽  
Northern Canada ◽  
Tolerant Species ◽  
Northern Regions ◽  
First Time

Sixty-eight species are recorded from the northern regions, tundra and open boreal forest, of Canada. The Eurasian Ephemerella mucronata (Bengtsson) is reported for the first time from North America and Caenis Candida n.sp. is described from the James Bay drainage in Quebec. The mayfly fauna of Northern Canada is composed of a distinctive tundra element (five species, three of which are holarctic), a north boreal element containing a few characteristic but not exclusive species, together with the most tolerant species of the eastern and, to a limited extent, western temperate faunas. Eighty-two species are now reported from Canada north of the closed boreal forest, roughly one fourth of the known Canadian fauna of mayflies.

scholarly journals Three new mosses records from the Andes of northwestern Argentina.

2017 ◽  
Vol 52 (2) ◽  
pp. 261-263 ◽  
Author(s):  
María J. Cano ◽  
Marta Alonso
Keyword(s):  
North America ◽  
South America ◽  
North Africa ◽  
Northwestern Argentina ◽  
The Andes ◽  
First Time

Two mosses are newly reported for Argentina based on recent collections from Saltaprovince: Aligrimmia peruviana R.S. Williams and Conostomum cleistocarpum Herzog. Hitherto, they were considered endemic to Bolivia and Peru, respectively. In addition, Crossidium squamiferum (Viv.) Jur., a species distributed in Europe, North America, Mexico, Asia, North Africa, and Macaronesia, is here reported for the first time in South America.

scholarly journals Genome analysis of Ranavirus frog virus 3 isolated from American Bullfrog (Lithobates catesbeianus) in South America

2019 ◽  
Vol 9 (1) ◽  
Author(s):  
Marcelo Candido ◽  
Loiane Sampaio Tavares ◽  
Anna Luiza Farias Alencar ◽  
Cláudia Maris Ferreira ◽  
Sabrina Ribeiro de Almeida Queiroz ◽  
...  
Keyword(s):  
North America ◽  
South America ◽  
Infectious Agent ◽  
European Continent ◽  
Frog Virus 3 ◽  
Frog Virus ◽  
American Bullfrog ◽  
Taxonomic Groups ◽  
First Time ◽  
Reference Samples

AbstractRanaviruses (family Iridoviridae) cause important diseases in cold-blooded vertebrates. In addition, some occurrences indicate that, in this genus, the same virus can infect animals from different taxonomic groups. A strain isolated from a Ranavirus outbreak (2012) in the state of Sao Paulo, Brazil, had its genome sequenced and presented 99.26% and 36.85% identity with samples of Frog virus 3 (FV3) and Singapore grouper iridovirus (SGIV) ranaviruses, respectively. Eight potential recombination events among the analyzed sample and reference FV3 samples were identified, including a recombination with Bohle iridovirus (BIV) sample from Oceania. The analyzed sample presented several rearrangements compared to FV3 reference samples from North America and European continent. We report for the first time the complete genome of Ranavirus FV3 isolated from South America, these results contribute to a greater knowledge related to evolutionary events of potentially lethal infectious agent for cold-blooded animals.

Redefinition of the vittata species group of Epicauta Dejean (1834) (Coleoptera: Meloidae) and taxonomic revision of the species from southern South America

Zootaxa ◽  
2011 ◽  
Vol 2824 (1) ◽  
pp. 21 ◽  
Author(s):  
MARÍA PAULA CAMPOS-SOLDINI ◽  
SERGIO ALBERTO ROIG-JUÑENT
Keyword(s):  
North America ◽  
South America ◽  
Central America ◽  
Taxonomic Revision ◽  
Species Group ◽  
South American ◽  
South American Species ◽  
Southern South America ◽  
Northern South America ◽  
First Time

The Epicauta vittata group are commonly known as striped blister beetles and was defined by previous authors to include 32 species, 18 from North America, Central America and northern South America, and 14 from southern South America. In the present revision we revised 22 species from South America, excluding the following southern South American species: E. borgmeieri Denier, 1935; E. floydwerneri Martínez, 1955; E. franciscana Denier, 1935; E. fulginosa (Oliver, 1795); E. purpureiceps (Berg, 1889); E. rutilifrons Borchmann, 1930; and E. zebra (Dohrn, 1876) because they do not have the diagnostic characters of the group. The species of the E. vittata group from southern South America are: E. bosqi Denier, 1935; E. clericalis (Berg, 1881); E. grammica (Fischer, 1827); E. leopardina (Haag-Rutemberg, 1880); E. luteolineata Pic, 1933; E. missionum (Berg, 1881); E. monachica (Berg, 1883); E. rutilifrons Borchmann, 1930; plus two more species E. excavata (Klug, 1825); and E. semivittata (Fairmaire, 1875) until now not included in other groups. We provide a complete diagnosis of the E. vittata group from southern South America, redescribing and illustrating all included species. Detailed descriptions and illustrations of female and male genitalia are presented for the first time for these species. Finally, we provide an identification key for the ten species presently included in the E. vittata group, and update the geographic distribution of each species.

Les lichens sur serpentine et amphibolite du plateau du mont Albert, Gaspésie, Québec

1988 ◽  
Vol 66 (5) ◽  
pp. 851-862 ◽  
Author(s):  
Luc Sirois ◽  
François Lutzoni ◽  
Miroslav M. Grandtner
Keyword(s):  
North America ◽  
Vascular Plants ◽  
The Other ◽  
Lichenicolous Fungi ◽  
Ecological Influence ◽  
Saxicolous Lichens ◽  
First Time ◽  
Terricolous Lichen ◽  
Lichen Flora

At Mount Albert, Quebec, many taxa are found exclusively on either serpentine or amphibolite contiguous formations. This exclusivity is clearly more noticeable within the saxicolous lichens than within the other groups. Serpentine seems to be an unfavourable substratum for the growth of saxicolous lichens. There are more infrequent taxa on serpentine than on amphibolite. The saxicolous, muscicolous, and terricolous lichen flora and the lichenicolous fungi of the plateau include 202 taxa, most of which have an arctic affinity. Of these taxa, 36 are recorded for the first time in Quebec, 16 in Canada and, 11 in North America. The ecological influence of serpentine on the lichens is, in many aspects, similar to that observed on vascular plants.

Jujuyaspis and associated trilobites from the Mungok Formation (Lower Ordovician), Yongwol, Korea

2000 ◽  
Vol 74 (6) ◽  
pp. 1031-1042 ◽  
Author(s):  
Dong Hee Kim ◽  
Duck K. Choi
Keyword(s):  
North America ◽  
South America ◽  
North China ◽  
Lower Ordovician ◽  
America South ◽  
Mungok Formation ◽  
First Time

The trilobite genus Jujuyaspis Kobayashi, 1936, an index fossil of earliest Ordovician age, is recorded from the Yosimuraspis Zone of the Mungok Formation (Lower Ordovician) for the first time in Korea. The Yosimuraspis Zone comprises Yosimuraspis vulgaris Kobayashi, 1960; Jujuyaspis sinensis Zhou in Chen et al., 1980; Elkanaspis jilinensis Qian in Chen et al 1985; and pilekid genus and species indeterminate. Closely comparable faunas to the Yosimuraspis Zone are well represented in North China. The occurrence of Jujuyaspis allows the correlation of the Yosimuraspis Zone with the earliest Ordovician faunas of North America, South America, and Scandinavia, and suggests that the Cambrian-Ordovician boundary in Korea be placed at the base of the Yosimuraspis Zone.

TWO NEW SPECIES OF METALLIC-GREEN COLEOPHORA HÜBNER (LEPIDOPTERA: COLEOPHORIDAE) FROM THE NEARCTIC REGION, AND FIRST RECORDS OF C. MAYRELLA (HÜBNER) FROM SOUTH AMERICA

1994 ◽  
Vol 126 (5) ◽  
pp. 1185-1191
Author(s):  
Jean-François Landry
Keyword(s):  
New Species ◽  
North America ◽  
Natural History ◽  
South America ◽  
Host Plants ◽  
Larval Host ◽  
Two New Species ◽  
First Time ◽  
Larval Host Plants ◽  
Nearctic Region

AbstractTwo new species of metallic-green Coleophora are described from the Nearctic region: C. alabama Landry from coastal Alabama, U.S.A.; and C. mexicana Landry from the state of Tamaulipas, Mexico. Modifications to the key to adults of the Nearctic species of metallic-green Coleophora from Landry and Wright (1993) are provided to account for these new species. Larval host plants and natural history are unknown. Both species are tentatively placed in the ramitella group. Coleophora mayrella (Hübner), originally from the Old World but long established in North America, is recorded for the first time from South America (Chile and Argentina).

The lichen, bryophyte, and vascular plant flora and vegetation of the Landing Lake area, Prince Patrick Island, Arctic Canada

1975 ◽  
Vol 53 (8) ◽  
pp. 719-744 ◽  
Author(s):  
Charles D. Bird
Keyword(s):  
North America ◽  
Relative Abundance ◽  
Vascular Plants ◽  
Plant Material ◽  
Vascular Plant ◽  
Peat Moss ◽  
Lake Area ◽  
Habitat Types ◽  
Southeastern Part ◽  
First Time

The relative abundance and ecology of 123 lichens, 12 liverworts, 1 peat moss, 59 mosses, and 40 vascular plants are described from the southeastern part of Prince Patrick Island, 76° N latitude. One hundred and three of the lichens, 25 of the bryophytes, and 6 of the vascular plants are first reports for the island. One lichen, Blastenia arctica, is reported for the first time from North America. One hundred and seventy of the species were found on the ground, 51 on rock, 9 on decaying plant material, 9 on bone, 5 on fossil wood, 4 on caribou dung, and 2 on mosses. Sixteen habitat types are described, based upon a relevé analysis of 31 different sites. A percentage of the lichens (95.1%), of the bryophytes (95.8%), and of the vascular plants (60.0%) encountered have a Circumpolar distribution. A percentage of the lichens (3.3%), of the bryophytes (1.4%), of the vascular plants (22.5%) have an American distribution. Eight species have an Amphi-Beringian distribution: lichens, 1.6%; bryophytes, 1.4%; vascular plants, 12.5%. One bryophyte (1.4%) and two vascular plants (5.0%) have an Amphi-Atlantic distribution.

scholarly journals Early Jurassic (middle Hettangian) marine gastropods from the Pogibshi Formation (Alaska) and their paleobiogeographical significance

2020 ◽  
Vol 47 (3) ◽  
pp. 559
Author(s):  
Mariel Ferrari ◽  
Robert B. Blodgett ◽  
Montana S. Hodges ◽  
Christopher L. Hodges
Keyword(s):  
North America ◽  
South America ◽  
Lower Jurassic ◽  
Early Jurassic ◽  
Time Range ◽  
South American ◽  
Kenai Peninsula ◽  
South Central ◽  
First Occurrence ◽  
First Time

A middle Hettangian marine gastropod assemblage is reported from the Kenai Peninsula of south-central Alaska supplying new paleontological evidence of this group in Lower Jurassic rocks of North America. Pleurotomaria pogibshiensis sp. nov. is described from the middle Hettangian marine succession informally known as Pogibshi formation, being the first occurrence of the genus in the Kenai Peninsula and the oldest occurrence of the genus in present-day Alaska and North America. One species of the genus Lithotrochus, namely Lithotrochus humboldtii (von Buch), is also reported for the first time from the Kenai Peninsula. Lithotrochus has been considered as endemic to South America for a time range from the early Sinemurian to the late Pliensbachian. The newest occurrence of Lithotrochus in rocks of the Pogibshi formation extends the paleobiogeographical and chronostratigraphical distribution of the genus into the present-day Northern Hemisphere. However, the Southern Hemisphere affinities are consistent with the hypothetical interpretations (although supported both by paleobiogeographical and paleomagnetic data) that the Peninsular terrane of south-central Alaska is far-traveled and may have originated at much more southerly paleolatitudes than its present-day position. Two other Early Jurassic caenogastropods typical of the Andean region of South America and of the Tethyan epicontinental seas are described for the first time in the Pogibshi formation, and these are Pseudomelania sp. and Pictavia sp. The new gastropod assemblage reported here shows close affinities with coeval South American and European gastropod faunas, supplying new evidence to interpret their distribution during the Early Jurassic.

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