Four shades of detachment: Regulation of floral organ abscission [PDF]
Plant Signaling and Behavior, 2014 Abscission of floral organs from the main body of a plant is a dynamic process that is developmentally and environmentally regulated. In the past decade, genetic studies in Arabidopsis have identified key signaling components and revealed their interactions in the regulation of floral organ abscission.
Joonyup Kim
exaly +5 more sources
Floral organ abscission is regulated by a positive feedback loop [PDF]
Proceedings of the National Academy of Sciences of the United States of America, 2015 Significance Dramatic changes in gene expression occur in abscission zones immediately prior to abscission. This study helps explain the mechanisms and emergent properties of a regulatory network that controls abscission. Two important connections are made that help explain the observed dynamic range of abscission gene expression.
O Rahul Patharkar +2 more
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Control of Organ Abscission and Other Cell Separation Processes by Evolutionary Conserved Peptide Signaling [PDF]
Plants, 2019 Plants both generate and shed organs throughout their lifetime. Cell separation is in function during opening of anthers to release pollen; floral organs are detached after pollination when they have served their purpose; unfertilized flowers are shed; fruits and seeds are abscised from the mother plant to secure the propagation of new generations ...
Chun-Lin Shi +2 more
exaly +7 more sources
The Transcription Factor AtDOF4.7 Is Involved in Ethylene- and IDA-Mediated Organ Abscission in Arabidopsis [PDF]
Frontiers in Plant Science, 2016 Organ abscission is an important plant developmental process that occurs in response to environmental stress or pathogens. In Arabidopsis, ligand signals, such as ethylene or INFLORESCENCE DEFICIENT IN ABSCISSION (IDA), can regulate organ abscission.
Qi-Jun Chen, Xue-Chen Wang, Tan Feng
exaly +5 more sources
Editorial: Phytohormones as crucial players in organ abscission [PDF]
Frontiers in Plant ScienceAgata Kucko +2 more
exaly +4 more sources
Editorial: Plant Organ Abscission: From Models to Crops [PDF]
Frontiers in Plant Science, 2017 Timothy J Tranbarger +2 more
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Elucidating mechanisms underlying organ abscission
Plant Science, 2013 Abscission consists in the detachment of entire vegetative and reproductive organs due to cell separation processes occurring at the abscission zones (AZs) at specific positions of the plant body. From an evolutionary point of view, abscission is a highly advantageous process resulting into fruit and seed dispersal as well as the shedding of no longer ...
Javier Agusti +2 more
exaly +5 more sources
BLADE-ON-PETIOLE Genes Enable Genetic Bottleneck Mitigation Through Cross-Species Repurposing of Floral Persistence Traits. [PDF]
Adv Sci (Weinh)This study shows that BLADE‐ON‐PETIOLE (BOP) proteins regulate floral abscission and senescence in tomato by interacting with TFAM1 to form transcriptional condensates controlling the ARABIDOPSIS THALIANA HOMEOBOX GENE 1 (ATH1)‐mediated abscission pathway.
Xiao N +7 more
europepmc +2 more sources
Abscission zones: cellular interfaces for the programmed separation of organs. [PDF]
Ann BotAbstract Background Abscission zones are specialized sites where plants shed organs, such as leaves, petals or fruits, in response to developmental or environmental signals. These zones form at predictable locations and, once activated, undergo structural and physiological changes that detach ...
Pautot V, Crick J, Hepworth SR.
europepmc +4 more sources
Mechanistic insight into a peptide hormone signaling complex mediating floral organ abscission. [PDF]
Elife, 2016 Plants constantly renew during their life cycle and thus require to shed senescent and damaged organs. Floral abscission is controlled by the leucine-rich repeat receptor kinase (LRR-RK) HAESA and the peptide hormone IDA. It is unknown how expression of IDA in the abscission zone leads to HAESA activation.
Santiago J +6 more
europepmc +7 more sources