New clothes for the jasmonic acid receptor COI1: delayed abscission, meristem arrest and apical dominance. [PDF]
In a screen for delayed floral organ abscission in Arabidopsis, we have identified a novel mutant of CORONATINE INSENSITIVE 1 (COI1), the F-box protein that has been shown to be the jasmonic acid (JA) co-receptor.
Joonyup Kim +6 more
doaj +1 more source
UFO: An Arabidopsis Gene Involved in Both Floral Meristem and Floral Organ Development [PDF]
We describe the role of the UNUSUAL FLORAL ORGANS (UFO) gene in Arabidopsis floral development based on a genetic and molecular characterization of the phenotypes of nine ufo alleles. UFO is required for the proper identity of the floral meristem and acts in three different aspects of the process that distinguishes flowers from shoots.
Levin, Joshua Z., Meyerowitz, Elliot M.
openaire +3 more sources
Floral stem cell termination involves the direct regulation of AGAMOUS by PERIANTHIA [PDF]
In Arabidopsis, the population of stem cells present in young flower buds is lost after the production of a fixed number of floral organs. The precisely timed repression of the stem cell identity gene WUSCHEL (WUS) by the floral homeotic protein AGAMOUS (
Das, Pradeep +6 more
core +2 more sources
Unraveling the Developmental and Genetic Mechanisms Underpinning Floral Architecture in Proteaceae
Proteaceae are a basal eudicot family with a highly conserved floral groundplan but which displays considerable variation in other aspects of floral and inflorescence morphology.
Catherine Damerval +14 more
doaj +1 more source
Spatio-Temporal Dynamics of the Patterning of Arabidopsis Flower Meristem
The qualitative model presented in this work recovers the onset of the four fields that correspond to those of each floral organ whorl of Arabidopsis flower, suggesting a mechanism for the generation of the positional information required for the ...
José Díaz +2 more
doaj +1 more source
Floral symptoms caused by phytoplasma largely resemble floral reversion in other plants. Periwinkle leaf yellowing (PLY) phytoplasma and peanut witches'-broom (PnWB) phytoplasma caused different degrees of floral abnormalities on infected periwinkle ...
Yi-Ting Su, Jen-Chih Chen, Chan-Pin Lin
doaj +1 more source
Orchestration of Floral Initiation by APETALA1 [PDF]
The MADS-domain transcription factor APETALA1 (AP1) is a key regulator of Arabidopsis flower development. To understand the molecular mechanisms underlying AP1 function, we identified its target genes during floral initiation using a combination of gene ...
Angenent, Gerco C. +11 more
core +2 more sources
Heterochronic developmental shifts underlie floral diversity within Jaltomata (Solanaceae)
Background Heterochronic shifts during mid- to late stages of organismal development have been proposed as key mechanisms generating phenotypic diversity.
Jamie L. Kostyun +2 more
doaj +1 more source
Mutations in the PERIANTHIA gene of Arabidopsis specifically alter floral organ number and initiation pattern [PDF]
An open question in developmental biology is how groups of dividing cells can generate specific numbers of segments or organs. We describe the phenotypic effects of mutations in PERIANTHIA, a gene specifically required for floral organ patterning in ...
Meyerowitz, Elliot M., Running, Mark P.
core
Gut microbiome and aging—A dynamic interplay of microbes, metabolites, and the immune system
Age‐dependent shifts in microbial communities engender shifts in microbial metabolite profiles. These in turn drive shifts in barrier surface permeability of the gut and brain and induce immune activation. When paired with preexisting age‐related chronic inflammation this increases the risk of neuroinflammation and neurodegenerative diseases.
Aaron Mehl, Eran Blacher
wiley +1 more source

