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Wyszukujesz frazę "new morphotype" wg kryterium: Temat


Wyświetlanie 1-3 z 3
Tytuł:
Two new morphotypes of Pinus eldarica: Discrimination by macromorphological and anatomical traits
Autorzy:
Shayanmehr, F
Jalali, S.G.
Ghanati, F.
Kartoolinejad, D.
Apple, M.E.
Powiązania:
https://bibliotekanauki.pl/articles/41605.pdf
Data publikacji:
2009
Wydawca:
Polska Akademia Nauk. Instytut Dendrologii PAN
Tematy:
Mondell pine
Pinus eldarica
morphotype
new morphotype
anatomy
statistical analysis
Iran
anatomical differentiation
morphological differentiation
morphometry
needle
Opis:
Pinus eldarica has been introduced to Iran from more than 800 years ago. Some individuals of this pine have altered both in shape and growth rate in northeastern of Iran, and generated two distinct morphotypes which are called Conical-shaped and Ball-shaped pines. This study was conducted to discriminate these morphotypes using macromorphological and anatomical characteristics. Results of macromorphological analysis showed significant differences both with univariate and multivariate analysis and consequently two new morphotypes were clearly separated from Mondell pine individuals. Furthermore, anatomical differences observed in Conical-shaped pine in comparison with two other pines, from some valuable taxonomical point of view traits such as cross-section form of needle, number of stomata per area, number and position of resin ducts etc. Furthermore, the existent difference in traits like cuticle thickness, stomata density, needle perimeter and length, state increasing the adaptation potential to aridity in Conical-shaped pine in comparison with two others. The differences of two new morphotypes demonstrate that they are new variants of Mondell pine and it is need to be used molecular markers and phylogenic studies for specifying the cause of these morphological and anatomical differences.
Źródło:
Dendrobiology; 2009, 61; 27-36
1641-1307
Pojawia się w:
Dendrobiology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Chrysophycean stomatocysts from Morskie Oko and Zabie Oko Lakes in the Tatra National Park, Poland
Autorzy:
Cabala, J
Powiązania:
https://bibliotekanauki.pl/articles/57814.pdf
Data publikacji:
2005
Wydawca:
Polskie Towarzystwo Botaniczne
Tematy:
chrysophyte
alga
Tatras Mountains
Lake Zabie Oko
water reservoir
Polska
Tatra National Park
stomatocyst
new morphotype
Lake Morskie Oko
Opis:
Sixteen chrysophycean stomatocysts are reported from the lakes Morskie Oko and Żabie Oko in the Tatra National Park, Poland. Of these, six morphotypes are new to Poland, and two morphotypes plus one forma are new to science. These stomatocysts are illustrated with SEM micrographs and described according to International Statospore Working Group (ISWG) guidelines. The comparison of stomatocyst community between Morskie Oko and Żabie Oko lakes is given.
Źródło:
Acta Societatis Botanicorum Poloniae; 2005, 74, 4
0001-6977
2083-9480
Pojawia się w:
Acta Societatis Botanicorum Poloniae
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
New sauropod trackways from the Middle Jurassic of Portugal
Autorzy:
Santos, V F
Moratalla, J.J.
Royo-Torres, R.
Powiązania:
https://bibliotekanauki.pl/articles/22749.pdf
Data publikacji:
2009
Wydawca:
Polska Akademia Nauk. Instytut Paleobiologii PAN
Tematy:
new sauropod
sauropod
paleontology
trackway
Middle Jurassic
Jurassic
Portugal
Dinosauria
Sauropoda
morphotype
Opis:
The Galinha tracksite reveals a sequence of Bajocian–Bathonian limestones belonging to the Serra de Aire Formation (West−Central Portugal) and is one of the few sites in the world where Middle Jurassic sauropod dinosaur tracks can be found. This tracksite is characterised by the presence of long, wide gauge sauropod trackways, the Middle Jurassic age of which suggests these dinosaurs were more widely distributed over time than previously thought. Two trackways contain unique pes and manus prints with morphologies that allow a new sauropod ichnotaxon to be described: Polyonyx gomesi igen. et isp. nov. On the basis of different manus/pes prints and trackway features, the proposal is made to subdivide Sauropodomorpha ichno−morphotypes into five groups: Tetrasauropus−like, Otozoum−like, Breviparopus/Parabrontopodus−like; Brontopodus−like, and Polyonyx−like. Polyonyx gomesi igen. et isp. nov. is thought to represent a nonneosauropod eusauropod, with a well developed manus digit I. The posterior orientation of this digit print suggests they were made by a eusauropod dinosaur with a posteriorly rotated pollex. The manus print morphologies observed in two trackways suggest a stage of manus structure intermediate between the primitive non−tubular sauropod manus and the tubular metacarpal arrangement characteristic of more derived sauropods. The low heteropody (manus:pes area ratio 1:2) of the trackway renders it possible they could have been made by eusauropods such as Turiasaurus riodevensis, which has a similar manus:pes area ratio. The Polyonyx igen. nov. trackway was made by non−neosauropod eusauropod, and suggests that wide gauge sauropod trackways were not exclusively made by Titanosauriformes.
Źródło:
Acta Palaeontologica Polonica; 2009, 54, 3; 409-422
0567-7920
Pojawia się w:
Acta Palaeontologica Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-3 z 3

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