Results 121 to 130 of about 3,764,426 (157)
Calcium Signaling Is Involved in Negative Phototropism of Rice Seminal Roots
Rice Science, 2014 Calcium ions (Ca2+) act as an intracellular second messenger and affect nearly all aspects of cellular life. They are functioned by interacting with polar auxin transport, and the negative phototropism of plant roots is caused by the transport of auxin from the irradiated side to the shaded side of the roots. To clarify the role of calcium signaling in
Huawei Xu, Yi-Wei Mo
exaly +2 more sources
Some of the next articles are maybe not open access.
Phototropin2-mediated hypocotyl phototropism is negatively regulated by JAC1 and RPT2 in Arabidopsis
Plant Physiology and Biochemistry, 2021Hypocotyl phototropism is redundantly mediated by phot1 and phot2, two blue light receptor phototropins, under the intensity of blue light>1 μmol m-2 s-1. As light intensity increases, phot1 inhibits the phot2-mediated response. To date, only Arabidopsis Root Phototropism2 (RPT2) has been shown to participate in phot1-mediated inhibition of ...
Jindong, Zhu +7 more
openaire +2 more sources
Negative Phototropism of Phycomyces in the Ultra-violet
Nature, 1957IN the course of a study of the growth and curvature of the sporangiophores of Phycomyces, the phototropic sensitivity was re-examined. Preliminary experiments showed that unfiltered green light, isolated from a General Electric H85C3 capillary mercury lamp by a Bausch and Lomb grating monochromator with quartz optics, caused very marked negative ...
G M, CURRY, H E, GRUEN
openaire +2 more sources
UV susceptibility and negative phototropism of dermatophytes
Mycoses, 1995Summary. 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.
J. Brasch, Anne Menz
openaire +1 more source
Negative phototropism of rice root and its influencing factors
Science in China Series C, 2002Some characteristics of the rice (Oryza sativa L.) root were found in the experiment of unilaterally irradiating the roots which were planted in water: (i) All the seminal roots, adventitious roots and their branched roots bent away from light, and their curvatures ranged from 25 degrees to 60 degrees .
Zhong, Wang +3 more
openaire +2 more sources
Negative phototropic response of rhizoid cells in the fern Adiantum capillus-veneris
Journal of Plant Research, 2006In 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 +2 more
openaire +2 more sources
Impact of IAA, GA3, and ABA on Negative Root Phototropism and Root Growth of Rice [PDF]
Acta Agronomica Sinica(China), 2014 Da-Tong LIU +4 more
exaly +2 more sources
UV susceptibility and negative phototropism of dermatophytes.
Mycoses, 1996High 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
openaire +1 more source
Negative shoot phototropism in a climber and an epiphyte
BiotropicaAbstractWhen 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.
openaire +1 more source
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.
openaire +2 more sources
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.
openaire +2 more sources