Phenotypic Plasticity in Micranthes foliolosa and Pollen and Seeds in Micranthes foliolosa - At Sisimiut, West Greenland
Af: Torben Jürgensen
LæseprøveBeskrivelse
Micranthes foliolosa (R. Br.) Gornall sensu lato is exciting in Sisimiut area, West Greenland. The genotype of Micranthes foliolosa develops six phenotypes, all dependent on the substrate temperature. Thus, Micranthes foliolosa can be used as a climate indicator. It has been found that cold phenotypes without flowers very rarely occurs together with warm phenotypes with many flowers. Cold phenotypes reproduce them exclusively by bulbils (asexual reproduction) while warm phenotypes have both asexual and sexual reproduction with insect pollination. The insects do not search for nectar glands but only for the red tip of the anthers, which the insect rips off. The insects tend to seek out specimens with triple capsules for a fourteen-day period around August 1st. Around September 1st, the capsules open and throw seeds. Micranthes foliolosa growth indicate a possible control of the plant by red staining (anthocyanin pigmentation). In this study Micranthes redofskyi may prove to be a Beringian variant of Micranthes foliolosa s.l., as Micranthes foliolosa var. sisimiutii is an Atlantic variant of the species.
Yderligere informationer
-
E-bog
-
EPUB (Reflowable)
EPUB (Reflowable)
-
Vandmærket
Vandmærket
-
44
-
Books on Demand
-
9788743018124
-
09-06-2020
-
Botanik, Træer, vilde blomster og planter: for alment interesserede læsere, Grønland
Pris DKK: 94,75
Denne bog er enten DRM-kopibeskyttet eller har Fixed layout
Hvis bogen er DRM-kopibeskyttet eller har Fixed layout, skal du bruge et særlig program for at læse bogen. Se anbefalinger til specifikke programmer her: Værd at vide om e-bøger og lydbøger
OBS!
Denne e-bog er beskyttet med Adobe DRM beskyttelse.
E-bogen kan kun læses i Adobe Digital Editions eller Bluefire Reader.
E-bogen kan ikke læses på Kindle, i Adobe Reader eller i iBooks.
Læs mere om programmer og print af e-bøger her.