Comparative effects of auxin and abscisic acid on growth, hydrogen ion efflux and gravitropism in primary roots of maize [PDF]
In order to test the idea that auxin action on root growth may be mediated by H(+) movement, the correlation of auxin action on growth and H(+) movement in roots was examined along with changes in H(+) efflux patterns associated with the asymmetric ...
Evans, M. L., Mulkey, T. J.
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Smartphones, time-lapse and responsible use in the school laboratory [PDF]
, 2012 Reports how observing and recording simple biological phenomena over an extended timescale could be enhanced by digital technology, the journey took surprising turns and twists into questions relating to ethics, child protection and reviewing acceptable ...
MacVicar, Graeme, Souter, Nicky
core
Regulation of tiller angle by gravity-sensing genes in rice
Crop JournalEndodermal cells and starch-accumulating amyloplasts are well-known gravity sensors initiating shoot gravitropism in Arabidopsis thaliana. The transcription factors SHR and SGR1 regulate endodermal cell formation, while PGM has been demonstrated to ...
Tao Yin +5 more
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Molecular Ecology, Volume 34, Issue 22, November 2025.ABSTRACT The action of natural selection across heterogeneous natural landscapes drives local adaptation and the formation of plant ecotypes, the precursors to new species. Plant ecotypes typically differ significantly in morphology, physiology, and development, yet our understanding of their underlying genetic basis remains limited.
Jason D. Olsen +3 more
wiley +1 more source
Publications of the NASA space biology program for 1980 - 1984 [PDF]
A listing of 562 publications supported by the NASA Space Biology Program for the years 1980 to 1984 is presented. References are arranged under the headings which are plant gravitational research, animal gravitational research, and general.
Pleasant, L. G., Solberg, J. L.
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Combined in silico/in vivo analysis of mechanisms providing for root apical meristem self-organization and maintenance. [PDF]
, 2012 Background and aimsThe root apical meristem (RAM) is the plant stem cell niche which provides for the formation and continuous development of the root.
Doroshkov, AV +8 more
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Ecological and Mutation‐Order Speciation in Senecio
Molecular Ecology, Volume 34, Issue 22, November 2025.ABSTRACT Natural selection shapes how new species arise, yet the mechanisms that generate reproductive barriers remain actively debated. Although ecological divergence in contrasting environments and mutation‐order processes in similar environments are often viewed as distinct speciation mechanisms, we show they can occur simultaneously and act as part
Maddie E. James +8 more
wiley +1 more source
Plants and Graviperception [PDF]
فناوری در مهندسی هوافضا, 2019 Plants have different mechanisms for understanding and responding to environmental stimuli cues. Gravity is one of the most important directional environmental cues to control growth direction, that plants can permanently adapt to it. Gravitropism can be
Fateme Mousavi
doaj
A quantitative model for spatio-temporal dynamics of root gravitropism [PDF]
, 2023 Amir Porat, M Rivière, Yasmine Meroz
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Suppression of asymmetric acid efflux and gravitropism in maize roots treated with auxin transport inhibitors of sodium orthovanadate [PDF]
In gravitropically stimulated roots of maize (Zea mays L., hybrid WF9 x 38MS), there is more acid efflux on the rapidly growing upper side than on the slowly growing lower side.
Evans, M. L., Mulkey, T. J.
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