Resistance of Antarctic moss Sanionia uncinata to photoinhibition: Chlorophyll fluorescence analysis of the samples from Western and Eastern coast of the Antarctic Peninsula

Plant Biology ◽  
2021 ◽  
Author(s):  
Alla Orekhova ◽  
Miloš Barták ◽  
Angelica Casanova‐Katny ◽  
Josef Hájek
Keyword(s):  
Chlorophyll Fluorescence ◽  
Antarctic Peninsula ◽  
Fluorescence Analysis ◽  
Eastern Coast ◽  
Sanionia Uncinata ◽  
The Antarctic ◽  
Antarctic Moss ◽  
Chlorophyll Fluorescence Analysis

scholarly journals Desiccation tolerance in the Antarctic moss Sanionia uncinata

2019 ◽  
Vol 52 (1) ◽  
Author(s):  
Marisol Pizarro ◽  
Rodrigo A. Contreras ◽  
Hans Köhler ◽  
Gustavo E. Zúñiga
Keyword(s):  
Desiccation Tolerance ◽  
Sanionia Uncinata ◽  
The Antarctic ◽  
Antarctic Moss

scholarly journals Photosynthetic acclimation of Nannochloropsis oculata investigated by multi-wavelength chlorophyll fluorescence analysis

2014 ◽  
Vol 167 ◽  
pp. 521-529 ◽  
Author(s):  
Milán Szabó ◽  
Kieran Parker ◽  
Supriya Guruprasad ◽  
Unnikrishnan Kuzhiumparambil ◽  
Ross McC. Lilley ◽  
...  
Keyword(s):  
Chlorophyll Fluorescence ◽  
Fluorescence Analysis ◽  
Nannochloropsis Oculata ◽  
Photosynthetic Acclimation ◽  
Multi Wavelength ◽  
Chlorophyll Fluorescence Analysis

scholarly journals Photoprotective and toxicological activities of extracts from the Antarctic moss Sanionia uncinata

2015 ◽  
Vol 11 (41) ◽  
pp. 38 ◽  
Author(s):  
JoséLuiz Mazzei ◽  
Andréiada Silva Fernandes ◽  
AlexandreSantos Alencar ◽  
Heitor Evangelista ◽  
Israel Felzenszwalb
Keyword(s):  
Sanionia Uncinata ◽  
The Antarctic ◽  
Antarctic Moss

Jurassic trees at Jason Peninsula, Antarctica

1997 ◽  
Vol 9 (4) ◽  
pp. 443-444 ◽  
Author(s):  
R.A. del Valle ◽  
J.M. Lirio ◽  
J.C. Lusky ◽  
J.R. Morelli ◽  
H.J. Nuñez
Keyword(s):  
Antarctic Peninsula ◽  
Volcanic Rocks ◽  
Eastern Coast ◽  
Prominent Feature ◽  
Calc Alkaline ◽  
Ice Shelf ◽  
British Antarctic Survey ◽  
Antarctic Expedition ◽  
The Antarctic ◽  
Larsen Ice Shelf

Jason Peninsula (66°10'S, 61°00'W) is a prominent feature extending some 80 km into the Larsen Ice Shelf from the eastern coast of the Antarctic Peninsula, and consists of widely spaced rock exposures and several ice-domes with elevations up to some 600 m (Fig. 1). The feature was first seen from seaward on 1 December 1893 by Captain C.A. Larsen, who named one of the high summits “Mount Jason” after his ship. Leading the 1902–1904 Swedish Antarctic Expedition, Dr Otto Nordenskjöld observed the area from Borchgrevink Nunatak (66°03'S; 62°30'W) and reported that the summits seen by Larsen were separated from the Antarctic Peninsula. The name “Jason Island” was subsequently adopted for this feature, but in the 1950s researchers belonging to the currently named British Antarctic Survey (BAS) determined Larsen's discovery to be a large peninsula, underlain mainly by calc-alkaline volcanic rocks.

scholarly journals New mammalian and avian records from the late Eocene La Meseta and Submeseta formations of Seymour Island, Antarctica

PeerJ ◽  
2020 ◽  
Vol 8 ◽  
pp. e8268
Author(s):  
Sarah N. Davis ◽  
Christopher R. Torres ◽  
Grace M. Musser ◽  
James V. Proffitt ◽  
Nicholas M.A. Crouch ◽  
...  
Keyword(s):  
Antarctic Peninsula ◽  
Global Climate ◽  
Late Eocene ◽  
Eastern Coast ◽  
Ice Cap ◽  
Postcranial Remains ◽  
Circumpolar Current ◽  
The Antarctic ◽  
Insight Into ◽  
Seymour Island

The middle–late Eocene of Antarctica was characterized by dramatic change as the continent became isolated from the other southern landmasses and the Antarctic Circumpolar Current formed. These events were crucial to the formation of the permanent Antarctic ice cap, affecting both regional and global climate change. Our best insight into how life in the high latitudes responded to this climatic shift is provided by the fossil record from Seymour Island, near the eastern coast of the Antarctic Peninsula. While extensive collections have been made from the La Meseta and Submeseta formations of this island, few avian taxa other than penguins have been described and mammalian postcranial remains have been scarce. Here, we report new fossils from Seymour Island collected by the Antarctic Peninsula Paleontology Project. These include a mammalian metapodial referred to Xenarthra and avian material including a partial tarsometatarsus referred to Gruiformes (cranes, rails, and allies). Penguin fossils (Sphenisciformes) continue to be most abundant in new collections from these deposits. We report several penguin remains including a large spear-like mandible preserving the symphysis, a nearly complete tarsometatarsus with similarities to the large penguin clade Palaeeudyptes but possibly representing a new species, and two small partial tarsometatarsi belonging to the genus Delphinornis. These findings expand our view of Eocene vertebrate faunas on Antarctica. Specifically, the new remains referred to Gruiformes and Xenarthra provide support for previously proposed, but contentious, earliest occurrence records of these clades on the continent.

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