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Rice plant resists arsenic

A Chinese-German research team has identified a rice plant variant that can neutralize arsenic toxins, with grains containing less than half the amount of arsenic as conventional rice. The astol1 rice variant also exhibits an elevated content of essential trace element selenium.

SourceHeidelberg University·JournalNature Communications·DateMar 2, 2021

New theory of root competition reveals rules governing growth

A new study provides a theoretical foundation for understanding competitive root behavior, revealing that plants adjust their root growth strategies according to the proximity of competing plants. The research reconciles conflicting hypotheses and demonstrates that roots are likely used to preempt resource capture by competitors in nea...

Root bacterium to fight Alzheimer's

A novel class of compounds called rhizolutin has been discovered in a soil bacterium, Rhizolutin dissociates protein aggregates associated with Alzheimer's disease both in vivo and in vitro. The compound has been shown to reduce inflammatory processes and cell death caused by Aβ plaques in neuronal and glial cells.

SourceWiley·JournalAngewandte Chemie International Edition·DateNov 2, 2020

A molecular break for root growth

Researchers have discovered a molecular break that controls the length of plant roots, influenced by hormones ethylene and karrikin. The study found that the protein SMAX1 acts as a molecular break for ethylene production, stimulating long root growth and short root hairs.

SourceTechnical University of Munich (TUM)·JournalProceedings of the National Academy of Sciences·DateOct 26, 2020

Getting to the root of the problem

A team from Pennsylvania State University analyzed the root systems of various beans and legumes to identify beneficial characteristics for breeding. They found that roots can balance nutrient exploration in topsoil and subsoil, leading to improved crop resilience under stress.

SourceAmerican Society of Agronomy·JournalCrop Science·DateAug 26, 2020

Plant root hairs key to reducing soil erosion

Researchers found that plant root hairs significantly reduce soil erosion by binding soil particles and increasing soil cohesion. The study suggests that root hairs may release materials that reinforce soil or enhance its properties, providing new insights into soil conservation.

SourceUniversity of Bristol·JournalCommunications Biology·DateApr 3, 2020

Bacterial influencers -- rhizosphere microbiome mediates root metabolite exudation

Researchers discovered that the rhizosphere microbiota can shape and control root exudation through a systemic root-to-root signalling mechanism. This process, termed Systemically Induced Root Exudation of Metabolites (SIREM), triggers the secretion of acylsugars in the whole root system.

SourceLeibniz Institute of Plant Genetics and Crop Plant Research·JournalProceedings of the National Academy of Sciences·DateFeb 7, 2020

Solving the riddle of strigolactone biosynthesis in plants

Researchers at Kobe University discovered the orobanchol synthase responsible for converting non-canonical strigolactone carlactonoic acid into canonical strigolactone orobanchol. This breakthrough enables artificial regulation of plant growth and weed germination, with potential applications in improving crop production and mitigating...

SourceKobe University·JournalScience Advances·DateJan 30, 2020

Beyond 'shovelomics': Growing cassava in the air helps study the plant's mysterious roots

Scientists have developed an innovative method of growing cassava in the air using aeroponics, allowing for real-time observation of root development and identification of genes that regulate growth. This breakthrough could lead to increased yields, improved sustainability, and accelerated plant growth.

Study: Underground fungal relationships key to thriving plants

A new study published in the Proceedings of the National Academy of Sciences found that arbuscular mycorrhizal fungi play a crucial role in plant thriving by providing up to 80% of the nutrients and water plants need to grow. The study analyzed over 17,000 trait observations from nearly 3,000 woody plant species and found that these fu...

SourceUniversity of Tennessee at Knoxville·JournalProceedings of the National Academy of Sciences·DateOct 28, 2019

Scientists discover new antibiotic in tropical forest

Researchers have discovered a new antibiotic, phazolicin, produced by a soil bacterium from a Mexican tropical forest that can prevent harmful bacteria from growing in plant roots. The findings suggest the potential for using this bacterium as a 'plant probiotic' to improve crop health and resistance to disease.

SourceRutgers University·JournalNature Communications·DateOct 8, 2019

Grains in the rain

Researchers have discovered that certain plant species, including wild tomato and alfalfa, share common genes with rice that enable them to survive flooding. The study aims to improve crop resilience to flooding by activating these genes in other plants.

Putting the brakes on lateral root development

New research from Washington University in St. Louis identifies a critical regulator of lateral root production, showing how auxin and cytokinin hormones interact to control root growth. The study reveals that the transporter TOB1 can limit auxin's root-promoting capabilities, promoting a slow but steady approach to root development.

SourceWashington University in St. Louis·JournalDevelopmental Cell·DateJul 23, 2019

Cigarette butts hamper plant growth -- study

A new study published in Ecotoxicology and Environmental Safety found that cigarette butts contain a bioplastic filter that harms plants, reducing germination success and shoot length of clover and grass by significant margins. The filters' chemical composition is believed to be the primary cause of damage.

SourceAnglia Ruskin University·JournalEcotoxicology and Environmental Safety·DateJul 19, 2019

Methods in belowground botany

Current research in belowground botany is advancing our understanding of plant root systems, their structure, and function. New technologies like digital imaging of root traits are enabling scientists to study root systems more effectively.

SourceBotanical Society of America·JournalApplications in Plant Sciences·DateJun 18, 2019