Results 21 to 30 of about 4,969 (220)
Reciprocal Garden Study Reveals Acute Spatial-Edaphic Adaptation for Cycas micronesica
A long-term reciprocal garden study was used to determine adaptive variation between Cycas micronesica K.D. Hill plants from north versus south Guam.
Thomas E. Marler
doaj +1 more source
Zamia inermis, the more threatened cycad of Mexico [PDF]
Zamia inermis (Zamiaceae) es una cícada rara, endémica y actualmente listada en Peligro Crítico de Extinción. De la misma, sólo se conoce una población compuesta de tres subpoblaciones, que se encuentra distribuido en tan sólo 2,5 km2 de pastizales y ...
Iglesias Andreu, Lourdes Georgina +3 more
core +2 more sources
Artifleck: The Study of Artifactual Responses to Light Flecks with Inappropriate Leaves
Methods in sunfleck research commonly employ the use of experimental leaves which were constructed in homogeneous light. These experimental organs may behave unnaturally when they are challenged with fluctuating light.
Thomas E. Marler
doaj +1 more source
Publishing trends for the Cycadales, the most threatened plant group
Trends in published cycad research within various fields of study were determined using proceedings from international conferences on cycad biology and Google Scholar to access the primary literature.
April N. Cascasan, Thomas E. Marler
doaj +1 more source
Carbohydrates, pollinators, and cycads [PDF]
Cycad biology, ecology, and horticulture decisions are not supported by adequate research, and experiments in cycad physiology in particular have been deficient. Our recent report on free sugar content in a range of cycad taxa and tissues sets the stage for developing continued carbohydrate research. Growth and development of cycad pollen, mediation of
Marler, Thomas E, Lindström, Anders J
openaire +2 more sources
EST analysis in Ginkgo biloba: an assessment of conserved developmental regulators and gymnosperm specific genes [PDF]
Background: Ginkgo biloba L. is the only surviving member of one of the oldest living seed plant groups with medicinal, spiritual and horticultural importance worldwide.
Brenner, E. D. +10 more
core +1 more source
Does Plant Size Influence Leaf Elements in an Arborescent Cycad?
Plant size influences the leaf nutrient relations of many species, but no cycad species has been studied in this regard. We used the arborescent Cycas micronesica K.D.
Thomas E. Marler +1 more
doaj +1 more source
Two Cycad Species Affect the Carbon, Nitrogen, and Phosphorus Content of Soils
The influences of Cycas micronesica and Zamia integrifolia plants on soil chemistry were determined in Tinian and Florida in order to more fully understand how cycad plants affect the environments in which they grow. The introduction of C.
Thomas E. Marler, Michael Calonje
doaj +1 more source
Mutations in UDP-Glucose:Sterol Glucosyltransferase in Arabidopsis Cause Transparent Testa Phenotype and Suberization Defect in Seeds [PDF]
In higher plants, the most abundant sterol derivatives are steryl glycosides (SGs) and acyl SGs. Arabidopsis (Arabidopsis thaliana) contains two genes, UGT80A2 and UGT80B1, that encode UDP-Glc:sterol glycosyltransferases, enzymes that catalyze the ...
Auer, Manfred +14 more
core +5 more sources
Western Pacific Amyotrophic Lateral Sclerosis and Parkinsonism-dementia Complex (ALS/PDC) is a disappearing neurodegenerative disease in three former high-incidence foci of the U.S.
Peter S. Spencer +6 more
doaj +1 more source

