Results 21 to 30 of about 4,678 (187)
Microarray analyses and comparisons of upper or lower flanks of rice shoot base preceding gravitropic bending. [PDF]
PLoS ONE, 2013 Gravitropism is a complex process involving a series of physiological pathways. Despite ongoing research, gravitropism sensing and response mechanisms are not well understood.
Liwei Hu +6 more
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Sequence of Key Events in Shoot Gravitropism [PDF]
Plant Physiology, 1984 It has recently been shown that asymmetric acid efflux is closely correlated with the gravitropic curvature of plant shoots and roots. The research reported here addresses whether auxin (IAA) redistribution in shoots is the cause or result of asymmetric acid efflux.When abraded sunflower (Helianthus annuus cv Mammoth) hypocotyls are submerged in 20 ...
F, Migliaccio, D L, Rayle
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Gravitropism in Higher Plant Shoots [PDF]
Plant Physiology, 1981 It has long been known that applied ethylene can redirect the gravitropic response, but only occasionally has it been suggested that ethylene normally plays a role in gravitropism. Two inhibitors of ethylene synthesis [Co(2+) and aminoethoxyvinylglycine (AVG)] and two inhibitors of ethylene action (Ag(+) and CO(2)) were shown to delay the gravitropic ...
R M, Wheeler, F B, Salisbury
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Gravitropism in Higher Plant Shoots [PDF]
Plant Physiology, 1988 An alternative to the Cholodny-Went, auxin-transport hypothesis of gravitropic stem bending was proposed as early as 1958, suggesting that gravistimulation induces changes in sensitivity to auxin, accounting for differential growth and bending.
F B, Salisbury +2 more
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Gravitropism in Higher Plant Shoots [PDF]
Plant Physiology, 1986 Ethylene at 1.0 and 10.0 cubic centimeters per cubic meter decreased the rate of gravitropic bending in stems of cocklebur (Xanthium strumarium L.) and tomato (Lycopersicon esculentum Mill), but 0.1 cubic centimeter per cubic meter ethylene had little effect.
R M, Wheeler, R G, White, F B, Salisbury
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SCFTIR1/AFB Auxin Signaling for Bending Termination during Shoot Gravitropism [PDF]
Plant Physiology, 2020 TIR1/AFB signaling is required and sufficient for auxin-mediated PIN3 re-polarization and shoot gravitropic bending termination.
Huibin Han +4 more
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Elucidating the Genetic Basis of Columnar Upright Architecture in Populus Through CRISPR Disruption of TILLER ANGLE CONTROL1. [PDF]
Plant Biotechnol JABSTRACT Narrow or upright branch angles in shoots and leaves lead to columnar, upright‐growing tree architectures, as observed in various tree species such as Lombardy poplar (Populus nigra var. italica). However, the genetic mechanism underlying this unique growth habit in Lombardy poplar has not yet been elucidated.
Choi NY +7 more
europepmc +2 more sources
Gravitropism in Higher Plant Shoots [PDF]
Plant Physiology, 1989 Although the Cholodny-Went model of auxin redistribution has been used to explain the transduction phase of gravitropism for over 60 years, problems are apparent, especially with dicot stems. An alternative to an auxin gradient is a physiological gradient in which lower tissues of a horizontal stem become more sensitive than upper tissues to auxin ...
P A, Rorabaugh, F B, Salisbury
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Characterization of a Novel Creeping Tartary Buckwheat (Fagopyrum tataricum) Mutant lazy1
Frontiers in Plant Science, 2022 Gravity is known as an important environmental factor involved in the regulation of plant architecture. To identify genes related to the gravitropism of Tartary buckwheat, a creeping line was obtained and designated as lazy1 from the mutant bank by 60Co ...
Chenggang Liang +11 more
doaj +1 more source
A unified model of shoot tropism in plants: photo-, gravi- and Propio-ception. [PDF]
PLoS Computational Biology, 2015 Land plants rely mainly on gravitropism and phototropism to control their posture and spatial orientation. In natural conditions, these two major tropisms act concurrently to create a photogravitropic equilibrium in the responsive organ.
Renaud Bastien +2 more
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