Results 91 to 100 of about 1,446 (113)

Negative phototropic response of rhizoid cells in the fern Adiantum capillus-veneris

Journal of Plant Research, 2006
In general, phototropic responses in land plants are induced by blue light and mediated by blue light receptor phototropins. In many cryptogam plants including the fern Adiantum capillus-veneris, however, red as well as blue light effectively induces a positive phototropic response in protonemal cells. In A.
Hidenori, Tsuboi, Noriyuki, Suetsugu, Masamitsu, Wada   +2 more
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Assessing Negative and Positive Phototropism in Lianas

2019
By the nineteenth century, root climbers and adhesive-tendril climbers were known to exhibit negative phototropism. Negative phototropism is shared by various plant species belonging to many taxonomic families and is considered to be an outcome of parallel evolution.
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UV susceptibility and negative phototropism of dermatophytes.

Mycoses, 1996
High doses of ultraviolet radiation (UVR) have well-known inhibitory effects upon dermatophytes. In the present study, the effect of repetitive low doses of UVR on mycelial growth of dermatophytes was tested. Pellets of Trichophyton rubrum, T. mentagrophytes and Microsporum canis were placed between two thin layers of Sabouraud glucose agar.
J, Brasch, A, Menz
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Negative phototropism of the shoots helps temperate liana Hedera helix L. to locate host trees under habitat conditions

Tree Physiology, 2023
Abstract Lianas employ a variety of searching mechanisms to find support; however, it is not clear to what extent environmental signals are used to help direct the search. Several adventitious root climbers have been shown to bend away from light and grow toward darker areas or objects, in one case including actual tree trunks.
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Bimodal Polarotropism of Vaucheria to Polarized Blue Light: Parallel Polarotropism at High Fluence Rate Corresponds to Negative Phototropism

Journal of Plant Research, 2000
(Xanthophyceae) exhibited cruciform polarotropism when they were grown under polarized white or blue light for several days. The coexistence of two groups of branches growing perpendicular and parallel to the electric vector (E-vector) resulted in cruciform polarotropic orientation. Such polarotropic bending was, however, not detected within 24 hr.
Hironao Kataoka, Fumio Takahashi, Tamotsu Ootaki   +2 more
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NEGATIVE PHOTOTROPISM OF THE HAPTERA OF ALARIA ESCULENTA (LAMINARIALES)^1,2

Journal of Phycology, 1974
SUMMARYThe “root‐like” haptera of the holdfast of Alaria esculenta (L.) Grev. display a negative phototropic curvature only when unilaterally irradiated with blue (432 nm) and green (552 nm) wavelengths.
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Negative phototropism in young gametophytes of the fern Schizaea pusilla

Plant, Cell & Environment, 1994
ABSTRACT Schizaea pusilla is a rare fern that occurs in acidic bogs and is one of the few fern species that maintains a filamentous gametophyte throughout its development. To expand our knowledge of the physiology of this fern, phototropic responses were examined in young gametophytes.
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Negative shoot phototropism in a climber and an epiphyte

Biotropica
AbstractWhen a root‐climber Ficus pumila and an epiphyte Peperomia quadrangularis were exposed to a light gradient, over 90% of the shoots grew away from light. This is the first demonstration of negative phototropism in these species. Whereas negative phototropism may help climbers locate support, its function in epiphytes remains uncertain.
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The absence of negative phototropism in the Mexican chicken bug, Haematosiphon inodorus (Duges) (Hemiptera: Cimicidae)

1954
(Uploaded by Plazi from the Biodiversity Heritage Library) No abstract provided.
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Negatively Phototropic Growth of Aspergillus restrictus

Mycologia, 1965
R. E. Welty, C. M. Christensen
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