Results 21 to 30 of about 1,226 (158)
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
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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
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IDENTIFICATION OF SEX IN ZAMIA INERMIS USING ISSR MARKERS [PDF]
Zamia inermis is a dioecious cycad endemic to the State of Veracruz that is on the risk extinction. Sex-specific markers are important in understanding the mechanism of sex determination.
Lourdes Georgina IGLESIAS-ANDREU +1 more
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The nitrogen-fixing cyanobacterium Nostoc is a commonly occurring terrestrial and aquatic cyanobacterium often found in symbiosis with a wide range of plant, algal, and fungal species.
Michelle M. Gehringer +5 more
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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
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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
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Cycas micronesica K.D. Hill trees on the island of Yap were used to determine the influence of position along the leaf rachis on macro- and micro-nutrient concentrations and how leaf age affected the results.
Thomas E. Marler +1 more
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BMAA in cycad-feeding Lepidoptera: defensive sequestration or bioaccumulation?
Many herbivorous Lepidoptera accumulate plant toxins within their own tissues as a defensive strategy. Pioneering research in this area was conducted by Miriam Rothschild and Deane Bowers, who showed that the cycad-feeding butterfly Eumaeus atala ...
Melissa R. L. Whitaker +5 more
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Cycads from the Triassic of Antarctica: Permineralized Cycad Leaves [PDF]
Permineralized cycad petioles and/or rachides with associated pinnae are described from two Triassic localities in the Queen Alexandria Range, central Transantarctic Mountains, Antarctica. Petiole‐rachides display an inverted‐omega‐shaped arrangement of vascular bundles typical of most genera of extant Cycadales and exarch primary xylem that link them ...
Hermsen, Elizabeth +3 more
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Mature Cycas micronesica trees were among the forest trees that were destined to be removed from a 2012 construction site in northern Guam. Forty-nine of these trees were cut at the base and transported to nursery conditions to determine if adventitious
Thomas Edward Marler, Gil Naputi Cruz
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