Plants have an amazing ability to 'rewire' themselves to survive winter
The world is changing, and so is the climate. Sudden temperature drops, unexpected frosts, and shifting weather patterns challenge ecosystems in many ways.
For plants, these changes are especially harsh. Unlike animals, they cannot migrate, seek shelter, or generate body heat in cold weather. Instead, they rely on internal adaptations to survive.
The findings reveal that this protein participates in multiple signaling pathways, enabling plants to survive harsh conditions.
Cold response strategies of plants
Unlike animals, plants cannot seek warmth or migrate. Their survival depends on internal mechanisms that adjust to temperature shifts.
Past research focused on molecules like amino acids and sugars, which help prevent freezing. Scientists also studied core temperature-response mechanisms, but many crucial components remained unknown.
Dikaya’s research uncovers a missing piece of this puzzle – RNA splicing. This process determines which proteins are produced in plant cells, directly impacting cold response strategies.
Understanding RNA splicing – the basics
RNA splicing is like an editing process for your genes, making sure your cells get the right instructions to build proteins.
When a gene gets copied into RNA, it includes extra sections called introns that don’t actually code for anything useful.
Before the RNA can do its job, the cell cuts out these introns and stitches together the remaining pieces, called exons.
This process turns a raw RNA transcript into a polished, ready-to-go messenger RNA (mRNA) that cells can use to make proteins.
Sometimes, cells splice RNA in different ways, mixing and matching exons to produce multiple proteins from the same gene.
This alternative splicing is why our relatively small number of genes can make such a huge range of proteins. When splicing goes wrong, though, it can lead to diseases like cancer and genetic disorders.
The role of splicing
“Splicing acts as a central hub controlling the information flow from DNA to RNA, defining which proteins are synthesized from a certain gene,” explained Dikaya, who is a doctoral student in the Department of Plant Physiology at Umeå University and Umeå Plant Science Center.
Her research focused on PORCUPINE, a protein discovered when scientists observed that plants with a mutation in this gene became unusually cold-sensitive. The mutation’s spiky shoot tips inspired the name.
Impact of temperature drops
“The PORCUPINE mutant appears normal under ambient temperature conditions but cannot develop properly in the case of even a mild temperature drop,” the team noted.
International Plant Scientist Awards:
Website:plantscientist.org
Here with connected:
Comments
Post a Comment