Related Experiment Video
Updated: May 17, 2025

Using Changes in Leaf Transmission to Investigate Chloroplast Movement in Arabidopsis thaliana
Published on: July 14, 2021
Leaf senescence-associated genes and transcriptional changes under dark conditions
Antonio Ferrante1, Petronia Carillo2
1Institute of Crop Science, Sant'Anna School of Advanced Studies, Piazza Martiri della Libertà 33, 56127 Pisa, Italy.
Background:
Leaf senescence is a high regulated and complex process that can be trigged by dark conditions, as demonstrated in various studies. Dark-induced leaf senescence resembles natural senescence by triggering typical symptoms such as protein degradation and chlorophyll loss. Transcription factors have been recognized as key modulators of dark-induced senescence and are associated with plant hormones such as cytokinins, ethylene, gibberellins, and jasmonic acid. Treatments with cytokinins and gibberellins can delay leaf senescence caused by darkness.
Scope:
This review aimed to collect information regarding the biochemical, physiological, and molecular mechanisms underlying senescence induced by dark incubation. The main variations that occur during leaf senescence are highlighted and discussed. Specific genes associated with dark-induced senescence and related metabolic pathways have been described.
Conclusions:
This study highlights the intricate nature of the senescence process and explores how genetic and environmental factors can be manipulated to slow down or prevent senescence. These insights have significant implications for improving crop productivity, extending product shelf life, and enhancing vase life of cut flowers.
More Related Videos
10:08Experimental Design for Laser Microdissection RNA-Seq: Lessons from an Analysis of Maize Leaf Development
Published on: March 5, 2017
10:10Investigating Tissue- and Organ-specific Phytochrome Responses using FACS-assisted Cell-type Specific Expression Profiling in Arabidopsis thaliana
Published on: May 29, 2010
Related Concept Videos
Transcription
Transcription is the process of synthesizing RNA from a DNA sequence by RNA polymerase. It is the first step in producing a protein from a gene sequence. Additionally, many other proteins and regulatory sequences are involved in the proper synthesis of messenger RNA (mRNA). Regulation of transcription is responsible for the differentiation of all the different types of cells and often for the proper cellular response to environmental signals.
Transcription Can Produce Different Kinds...
Transcription Attenuation in Prokaryotes
There are several different mechanisms used to attenuate transcription. In ribosome mediated...
Cell Signaling in Plants
Biological Clocks and Seasonal Responses
Adaptations that Reduce Water Loss
Responses to Heat and Cold Stress