Effect of the auxin polar transport inhibitor on the morphogenesis of leaves and generative structures during fasciation in Arabidopsis thaliana (L.) Heynh.

Bykova, Ekaterina A.; Chergintsev, Denis A.; Власова, Т. И.; Choob, Vladimir V.

doi:10.1134/s1062360416040032

Cited by 5 publications

(1 citation statement)

References 22 publications

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“…These carpels most probably represent modified phyllomes, sometimes bear features of leaves or bracts, such as long trichomes (Figure 1E) or unfused margins. However, a similar unusual morphogenesis was recorded in fasciated mutants clavata3 of A. thaliana after auxin transport inhibitor application [18].…”

Section: Phenotype Of Fasciated Mutant Of L Angustifolius Results From Superfluous Proliferation Of Meristemssupporting

confidence: 63%

Interaction between Floral Merism and Symmetry: Evidence from Fasciated Mutant of Lupinus angustifolius L. (Leguminosae)

2019

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A significant diversity of flower structure in angiosperms is defined by few parameters, among which one may list floral merism and symmetry as the most important. However, observation of normal variation in different taxa indicates that high floral merism (more than six organs) is very rarely associated with a monosymmetry. Precise mechanisms underlying this tendency, as well as the mode of interaction between regulatory pathways of floral symmetry and merism, remain unidentified. In this work, we observed the floral ontogeny in normal plants of Lupinus angustifolius L. (Leguminosae), described the floral structure and its variations in fasciated mutant. Our results suggest that monosymmetry is regulated independently from the floral merism, so three types of petals differentiate properly even in flowers with an anomalously high number of organs. However, the adaxial floral domain is the most stable floral part, which is the least susceptible to the fluctuations of merism. This means that some genes responsible for the development of the adaxial flower domain may additionally stabilize it and hence prevent fluctuations of merism in the adaxial domain. The monosymmetry in Leguminosae is a character connected with pollination by insects and requires a precise interaction between all floral parts. That is why fluctuations, which impair this interaction and symmetry, may decrease the pollination efficiency.

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Section: Phenotype Of Fasciated Mutant Of L Angustifolius Results From Superfluous Proliferation Of Meristemssupporting

confidence: 63%

Interaction between Floral Merism and Symmetry: Evidence from Fasciated Mutant of Lupinus angustifolius L. (Leguminosae)

2019

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Involvement of histone acetylation and deacetylation in regulating auxin responses and associated phenotypic changes in plants

et al. 2017

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The most recent outcomes about the transcription factors and transcription complexes mediated auxin signaling pathway by the histone acetylation and deacetylation. The phytohormone auxin, is required to regulate its accumulation spatiotemporally and responses to orchestrate various developmental levels in plants. Histone acetylation and deacetylation modulate auxin biosynthesis, its distribution and accumulation. In the absence of auxin, histone deacetylase represses the expression of auxin-responsive genes. Various transcription factors and transcription complexes facilitate the proper regulation of auxin signaling pathway genes. The primary and lateral root development, promotion of flowering and initiation of seed germination are all regulated by auxin-mediated histone acetylation and deacetylation. These findings conclude the auxin mode of action, which is mediated by histone acetylation and deacetylation, and associated phenotypic responses in plants, along with the underlying mechanism of these modifications.

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Antagonistic interactions between cytokinin and gibberellin during initial stem growth and leaf structure of royal poinciana [Delonix regia (Bojer ex. Hook.) Raf.]

Medeiros,

Silva,

Sarmento

et al. 2024

Trees

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Effect of the auxin polar transport inhibitor on the morphogenesis of leaves and generative structures during fasciation in Arabidopsis thaliana (L.) Heynh.

Cited by 5 publications

References 22 publications

Interaction between Floral Merism and Symmetry: Evidence from Fasciated Mutant of Lupinus angustifolius L. (Leguminosae)

Interaction between Floral Merism and Symmetry: Evidence from Fasciated Mutant of Lupinus angustifolius L. (Leguminosae)

Involvement of histone acetylation and deacetylation in regulating auxin responses and associated phenotypic changes in plants

Antagonistic interactions between cytokinin and gibberellin during initial stem growth and leaf structure of royal poinciana [Delonix regia (Bojer ex. Hook.) Raf.]

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