Arabidopsis uses a molecular grounding mechanism and a biophysical circuit breaker to limit floral abscission signaling DOI Creative Commons
Isaiah Taylor, O. Rahul Patharkar, Medhavinee Mijar

et al.

Proceedings of the National Academy of Sciences, Journal Year: 2024, Volume and Issue: 121(44)

Published: Oct. 25, 2024

Abscission is the programmed separation of plant organs. It widespread in kingdom with important functions development and environmental response. In Arabidopsis, abscission floral organs (sepals, petals, stamens) controlled by two receptor-like protein kinases HAESA (HAE) LIKE-2 (HSL2), which orchestrate dissolution zone connecting to developing fruit. this work, we use single-cell RNA sequencing characterize core

Language: Английский

Abscission in plants: from mechanism to applications DOI Creative Commons

Jiahuizi Li,

Shihao Su

Advanced Biotechnology, Journal Year: 2024, Volume and Issue: 2(3)

Published: Aug. 9, 2024

Abscission refers to the natural separation of plant structures from their parent plants, regulated by external environmental signals or internal factors such as stress and aging. It is an advantageous process it enables plants shed unwanted organs, thereby regulating nutrient allocation ensuring dispersal fruits seeds parent. However, in agriculture horticulture, abscission can severely reduce crop quality yield. In this review, we summarize recent advances perspectives developmental molecular biology, emphasizing diverse regulatory networks across different lineages, model crops. The sophisticated involves several overlapping steps, including differentiation zone, activation abscission, tissue detachment, formation a protective layer. Finally, discuss potential applications physiological modifications genetic manipulations sustainable future.

Language: Английский

Citations

5
Single-cell transcriptomics of the Arabidopsis floral abscission zone DOI Creative Commons
Isaiah Taylor, O. Rahul Patharkar, Medhavinee Mijar

et al.

bioRxiv (Cold Spring Harbor Laboratory), Journal Year: 2022, Volume and Issue: unknown

Published: July 16, 2022

Abstract Abscission is the programmed separation of plant organs. It widespread in kingdom with important functions development and environmental response. In Arabidopsis, abscission floral organs (sepals, petals, stamens) controlled by two receptor-like protein kinases HAESA (HAE) LIKE-2 (HSL2), which orchestrate dissolution zone connecting to developing fruit. this work, we use single-cell RNA-Sequencing characterize core HAE/HSL2 gene expression program. We identify MAP KINASE PHOSPHATASE-1/MKP1 as a negative regulator pathway. MKP1 acts prior activation signaling establish threshold required for initiation abscission. By analogy electrical circuit control, liken molecular grounding mechanism that dissipates errant pathway absent signaling. Furthermore, data genes expressed sub-populations cells: those proximal distal plane separation. INFLORESCENCE DEFICIENT IN ABSCISSION/IDA , encoding activating ligand HAE/HSL2, one mRNAs most highly enriched cells at base abscising show how pattern forms biophysical breaker whereby, when organ shed, source IDA peptide removed, leading cessation Overall, work provides insight into multiple control mechanisms acting on abscission-signaling

Language: Английский

Citations

3
Precise control of falling flowers and fruits is a key part of improving quality and efficiency DOI Creative Commons
Gaofeng Liu, Zixin Zhang

New Crops, Journal Year: 2024, Volume and Issue: unknown, P. 100052 - 100052

Published: Sept. 1, 2024

Language: Английский

Citations

0
Arabidopsis uses a molecular grounding mechanism and a biophysical circuit breaker to limit floral abscission signaling DOI Creative Commons
Isaiah Taylor, O. Rahul Patharkar, Medhavinee Mijar

et al.

Proceedings of the National Academy of Sciences, Journal Year: 2024, Volume and Issue: 121(44)

Published: Oct. 25, 2024

Abscission is the programmed separation of plant organs. It widespread in kingdom with important functions development and environmental response. In Arabidopsis, abscission floral organs (sepals, petals, stamens) controlled by two receptor-like protein kinases HAESA (HAE) LIKE-2 (HSL2), which orchestrate dissolution zone connecting to developing fruit. this work, we use single-cell RNA sequencing characterize core

Language: Английский

Citations

0