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New sunflower family tree reveals multiple origins of flower symmetry

A new analysis of the sunflower family tree shows that flower symmetry evolved multiple times independently among its members. The research, led by Penn State biologist Hong Ma, used low-coverage genome sequences to increase the number of species available for comparison and resolved more of the finer branches of the family tree.

SourcePenn State·JournalPlant Communications·TypeExperimental study·DateApr 3, 2024

Understanding jasmonic acid: A switch that activates autophagy in Arabidopsis petals

A team of researchers from Nara Institute of Science and Technology discovered a phytohormone-mediated switch controlling autophagy, leading to terminal cell differentiation for petal abscission. They found that jasmonic acid promotes petal abscission by activating autophagy at the base of petals.

SourceNara Institute of Science and Technology·JournalNature Communications·TypeExperimental study·DateFeb 7, 2024

Demystifying the role of plant x- and y-type thioredoxins

X- and y-type thioredoxins play a crucial role in maintaining the redox balance of photosynthesis during fluctuating light conditions. The study found that these proteins facilitate electron transport through the electron transport chain, preventing photoinhibition and promoting plant growth.

SourceOkayama University·JournalPLANT PHYSIOLOGY·TypeExperimental study·DateOct 4, 2023

Seeing the insides of plants in 3D

A new technology called PHYTOMap allows researchers to study dozens of genes simultaneously without genetic manipulation, providing insights into plant responses to climate change. The method has the potential to improve crop resiliency and inform agriculture optimization.

SourceSalk Institute·JournalNature Plants·TypeImaging analysis·DateJun 12, 2023

Finding genes to help fruit adapt to droughts

A study by researchers at Boyce Thompson Institute has identified genes that can help plant breeders develop fruit crops that can adapt to drought conditions. The research found that water stress triggers physiological disorders and fruit loss, but also has positive effects such as increasing lycopene levels in ripe fruit.

SourceBoyce Thompson Institute·JournalPLANT PHYSIOLOGY·TypeExperimental study·DateNov 30, 2022

Gametophytes are ready for their close up: Methods used to study obscure sexual portion of plant life cycle focus of Applications in Plant Sciences special issue

A new special issue of Applications in Plant Sciences explores techniques for studying gametophytes, essential for understanding biodiversity and conservation. The study reveals the complexity of gametophyte biology, including their limited size and invisibility in some plants.

SourceBotanical Society of America·JournalApplications in Plant Sciences·DateMay 10, 2022

Nanocarrier spray: Better crops without genetic modification

Researchers at RIKEN CSRS have developed a non-transgenic method to modify plant genes using a bioactive molecule spray, which can be used to improve crop yield and resistance to pests. The technique has shown promising results in improving economically desirable quality traits in crops.

SourceRIKEN·JournalACS Nano·DateFeb 23, 2022

Healthier tapioca starch is on the way

Researchers at RIKEN have developed a healthier form of tapioca starch by suppressing multiple genes that increase its resistance to digestion. The resulting starch is composed of longer chains with fewer branches, making it harder to digest and potentially improving intestinal function and blood sugar control.

SourceRIKEN·JournalPlant Molecular Biology·DateDec 16, 2021

For a fungus, the right “accessories” can make or break a relationship with a plant

A new study explores how plants respond differently to useful and harmful microbes, revealing that accessory chromosomes from fungal strains dictate these responses. Most plant genes are expressed similarly in response to both beneficial and pathogenic fungi, but with key differences occurring just 12 hours after interaction.

SourceAmerican Phytopathological Society·JournalMolecular Plant-Microbe Interactions·TypeExperimental study·DateNov 23, 2021

Broad Institute researchers use novel field-ready CRISPR platform to detect plant genes

Researchers have developed a novel CRISPR-based platform called SHERLOCK that enables the detection and quantification of plant genes. The platform is rapid, portable, and low-cost, with high multiplexing capability, making it an important tool for agriculture in detecting pathogens or pests and in plant breeding.

Harm and response

A comprehensive study reveals that plants respond uniquely to different insects, activating specific genes to defend against attacks. The research shows that plants can distinguish between closely related insect species, leading to targeted defense responses.

SourceUniversity of Missouri-Columbia·JournalFrontiers in Plant Science·DateFeb 12, 2015