Results 21 to 30 of about 1,226 (158)

Carbohydrates, pollinators, and cycads [PDF]

open access: yesCommunicative & Integrative Biology, 2015
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

Does Plant Size Influence Leaf Elements in an Arborescent Cycad?

open access: yesBiology, 2018
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

IDENTIFICATION OF SEX IN ZAMIA INERMIS USING ISSR MARKERS [PDF]

open access: yesJournal of Plant Development, 2021
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
doaj   +1 more source

Host Selection of Symbiotic Cyanobacteria in 31 Species of the Australian Cycad Genus: Macrozamia (Zamiaceae)

open access: yesMolecular Plant-Microbe Interactions, 2010
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
doaj   +1 more source

Two Cycad Species Affect the Carbon, Nitrogen, and Phosphorus Content of Soils

open access: yesHorticulturae, 2020
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

Kampō medicine and Muro disease (Amyotrophic Lateral Sclerosis and Parkinsonism-Dementia Complex): Postscript and Historical Footnote

open access: yeseNeurologicalSci, 2021
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

Distribution of Elements along the Rachis of Cycas micronesica Leaves: A Cautionary Note for Sampling Design

open access: yesHorticulturae, 2019
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
doaj   +1 more source

BMAA in cycad-feeding Lepidoptera: defensive sequestration or bioaccumulation?

open access: yesFrontiers in Ecology and Evolution, 2023
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
doaj   +1 more source

Cycads from the Triassic of Antarctica: Permineralized Cycad Leaves [PDF]

open access: yesInternational Journal of Plant Sciences, 2007
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
openaire   +2 more sources

Adventitious rooting of mature Cycas micronesica K.D. Hill (Cycadales: Cycadaceae) tree stems reveals moderate success for salvage of an endangered cycad

open access: yesJournal of Threatened Taxa, 2017
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
doaj   +1 more source

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