Results 21 to 30 of about 7,205 (222)

Secrets beneath the soil: recovery of fern spores as a strategy of biodiversity conservation in Punta Lara Nature Reserve (PLNR), Argentina

open access: yesRodriguésia, 2021
The recovery of soil spores is a strategy to strengthen in decline or disappeared populations from natural environments. In this work, we analyzed 25 soil samples extracted from a patch of gallery forest in an “albardón” of Punta Lara Reserve, Buenos ...
Pedro Cayetano Berrueta   +3 more
doaj   +1 more source

Integrating tissue‐direct PCR into genetic identification: An upgraded molecular ecology approach to survey fern gametophytes in the field

open access: yesApplications in Plant Sciences, 2022
Premise The gametophytes of different fern species collected in the field can be difficult to distinguish because of their morphological similarities. Nonetheless, emerging molecular ecology techniques are starting to be used to tackle such limitations ...
Yi‐Hsuan Wu   +4 more
doaj   +1 more source

Proteomic analysis of gametophytic sex expression in the fern Ceratopteris thalictroides.

open access: yesPLoS ONE, 2019
Ceratopteris thalictroides, a model fern, has two kinds of gametophytes with different sex expression: male and hermaphrodite. Hermaphroditic gametophytes have one or several archegonia beneath the growing point and a few antheridia at the base or margin.
Xuefei Chen   +6 more
doaj   +1 more source

Light and electron microscopy of chloroplasts in Equisteum gametophytes [PDF]

open access: yes
Spores of Equisetum were germinated and the resulting gametophytes grown to maturity in standard microcultures. Light and electron microscope observations were made of the chloroplasts within the gametophytes.
Hook, Patricia Waynette, 1941-
core   +6 more sources

Male Gametophyte Development. [PDF]

open access: yesThe Plant Cell, 1993
Pollen development offers the opportunity to study cell fate, cell patterning, cell polarity, and cell signaling-in this sense, pollen development can serve as a microcosm for all the in- teresting questions facing plant biologists today. The events that culminate in the formation and release of the pollen grain from the plant begin with meiosis and ...
openaire   +2 more sources

Measuring volatile emissions from moss gametophytes: A review of methodologies and new applications

open access: yesApplications in Plant Sciences, 2022
Mosses inhabit nearly all terrestrial ecosystems and engage in important interactions with nitrogen‐fixing microbes, sperm‐dispersing arthropods, and other plants.
Danlyn L. Brennan   +8 more
doaj   +1 more source

Functional Characterization of Class I Trehalose Biosynthesis Genes in Physcomitrella patens

open access: yesFrontiers in Plant Science, 2020
The function of trehalose metabolism in plants during growth and development has been extensively studied, mostly in the eudicot Arabidopsis thaliana. So far, however, not much is known about trehalose metabolism in the moss Physcomitrella patens.
Tran Le Cong Huyen Bao Phan   +9 more
doaj   +1 more source

Photographic analysis of field‐monitored fern gametophyte development and response to environmental stress

open access: yesApplications in Plant Sciences, 2022
Premise Ferns differ from seed plants in possessing a life cycle that includes a small, free‐living, seemingly vulnerable gametophyte stage in which sexual reproduction occurs.
Jakob J. Schneller, Donald R. Farrar
doaj   +1 more source

In Situ Observations of the Gametophytes of Six Fern Species of Costa Rica

open access: yes, 2023
Fern gametophytes are an often-overlooked part of field studies on ferns due to the challenge of finding material and the difficulty of identifying wild-collected plants. Most existing gametophyte descriptions are derived from lab-reared plants and while
Sorojsrisom, Elissa   +6 more
core   +1 more source

Methodologies for soil extraction and conservation analysis of ferns and lycophytes with belowground gametophytes

open access: yesApplications in Plant Sciences, 2022
Premise Studies of fern and lycophyte gametophyte biology in natural settings can be challenging, but such analyses are critical to understanding the dispersal, ecology, and conservation of these species.
Donald R. Farrar, Cindy L. Johnson
doaj   +1 more source

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