Results 201 to 210 of about 7,079 (250)

Distribution of glycolipids and phospholipids in Pteridium aquilinum

Phytochemistry, 1974
Abstract The glycolipids and phospholipids in fronds and rhizomes of Pteridium aquilinum were determined. The total quantity of polar lipid decreased towards the base of the frond, but increased in the storage rhizome. The monogalactosyl diglyceride/digalactosyl diglyceride ratio was 1.8 in the pinnae, 1.0 in the lower petiole and 0.3 in the ...
Michael C. Jarvis, Henry J. Duncan
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Substructure in negatively stained flagella of Pteridium spermatozoids

Journal of Ultrastructure Research, 1967
Phosphotungstate negative staining applied to disintegrated flagella from Pteridium sperm cells revealed that each subfiber in the “nine plus two” pattern was composed of about twelve cylindrically arranged protofibrils. Individual protofibrils were about 35 A across and with a center-to-center spacing of 50 A between adjacent units.
openaire   +2 more sources

Does invasion by Pteridium aquilinum (Dennstaedtiaceae) affect the ecological succession in Atlantic Forest areas after a fire?

Environmental science and pollution research international, 2021
Thayane Ferreira Carvalho, Aline Cristina Carvalho, J. Zanuncio, M. D. de Oliveira, E. Machado, A. José, J. B. Santos, I. Pereira   +7 more
semanticscholar   +1 more source

INDUCED APOGAMY IN DIPLOID GAMETOPHYTES OF PTERIDIUM

Canadian Journal of Botany, 1966
Diploid gametophytes were produced via self-fertilization and apospory from a strain of haploid gametophytes which underwent apogamy in sterile culture. These diploid gametophytes of the fern, Pteridium, demonstrated quantitative differences from the haploid prothalli.
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Gnarled Trichomes: An Understudied Character in Pteridium

American Fern Journal, 1996
-One of three characteristics used by Tryon to distinguish "southern" bracken ferns (Pteridium) of subsp. caudatum from "northern" taxa assigned to subsp. aquilinum is the farinaceous appearance of the intervein areas on the lower surface of the ultimate laminal segments.
John A. Thomson, Anthony B. Martin
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Evolutionary studies of the chloroplast genome in Pteridium

Plant Science, 1991
Abstract Although bracken ferns of the genus Pteridium are abundant, world-wide in distribution and of economic importance in agriculture and forestry as well as in animal and human health, taxonomic and evolutionary studies of the genus have previously lacked an adequate objective basis.
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Phylloplane mycoflora of bracken, Pteridium aquilinum

Transactions of the British Mycological Society, 1974
The phylloplane mycoflora on the fronds of bracken, Pteridium aquilinum , was followed during two seasons and was shown to be similar to that on angiosperm leaves. The succession involved Aureobasidium pullulans, Botrytis cinerea and Clado-sporium herbarum followed by Alternaria alternata and Epicoccum purpurascens .
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Pteridium aquilinum performance is driven by climate, soil and land-use in Southwest Asia

Folia Geobotanica, 2020
Laleh Amouzgar, J. Ghorbani, M. Shokri, R. Marrs, Josu G. Alday   +4 more
semanticscholar   +1 more source

Pteridium

2020
H.J. Beentje, S.A.L. Smith, B. Verdcourt
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Flavonol glycosides from Pteridium aquilinum

Phytochemistry, 1995
Abstract Two new flavonol glycosides from aerial parts of Pteridium aquilinum were identified as quercetin 3- O - β -laminaribioside and isorhamnetin 3- o - β -laminaribioside by chemical and spectroscopic methods.
openaire   +1 more source