Regnellidium diphyllum


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Synonyms for Regnellidium diphyllum

small latex-containing aquatic fern of southern Brazil

References in periodicals archive ?
The present results are also similar to findings from studies of in vitro exposure of Regnellidium diphyllum to other metals.
In the present study, the development of Regnellidium diphyllum sporophytes was not clearly affected by exposure to lead.
The negative impact of the exposure of Regnellidium diphyllum sporophytes to other metals in nutrient solution was higher when compared to the data obtained in this study.
Although the presence of lead negatively influenced megaspore germination, it was not a limiting factor for the initial growth of Regnellidium diphyllum sporophytes in the experimental conditions and concentrations tested.
The presence of high concentrations of lead in Regnellidium diphyllum sporophytes did not inhibit their initial development, pointing that this species may present tolerance to this metal even in more advanced stages of its life cycle.
Effects of 2,4-D on the germination of megaspores and initial development of Regnellidium diphyllum Lindman (Monilophyta, Marsileaceae).
Germination and sporophytic development of Regnellidium diphyllum Lindm.
Germination and sporophytic development of Regnellidium diphyllum Lindman (Marsileaceae) in the presence of hexavalent chromium.
Effects of nickel on the fern Regnellidium diphyllum Lindm.
The different nickel concentrations tested in the present study influenced negatively megaspore germination, formation of sporophytes and sporophytic development of Regnellidium diphyllum.
Chlorosis and necrosis showed by sporophytes of Regnellidium diphyllum in the presence of Ni was also observed in newly developed leaves of Ipomoea aquatic Forsk treated with 0.
Considering the results obtained in the present study, pollutant human activities that introduce Ni, even in low doses, in the natural habitat of Regnellidium diphyllum, may inhibit the establishment of plants in the initial stage of development and threatening their populations, a problem to be considered in relation to the conservation status of this currently vulnerable species.
Influence of different nickel concentrations on the growth of Regnellidium diphyllum Lindman.
Observacoes sobre o desenvolvimento morfologico do esporofito de Regnellidium diphyllum Lindm.
Regnellidium diphyllum Lindman growth of primary root, primary leaf and first secondary leaf after one and five weeks of in vitro culture at different 2,4-D concentrations.