Tag: roots

Swapping where crops are grown could feed an extra 825 million people

Redrawing the global map of crop distribution on existing farmland could help meet growing demand for food and biofuels in coming decades, while significantly reducing water stress in agricultural areas, according to a new study. Published today in Nature Geoscience, the study is the first to attempt to address both food production needs and resource sustainability simultaneously and at a global scale.

The results show that “there are a lot of places where there are inefficiencies in water use and nutrient production,” says lead author Kyle Davis, a postdoctoral researcher with Columbia University‘s Earth Institute. Those inefficiencies could be fixed, he says, by swapping in crops that have greater nutritional quality and lower environmental impact.

Research finds roots use chemical ‘photos’ to coordinate growth

Though it may look haphazard, the network of intertwining plant roots snaking through the soil actually represents a deliberate process. Root growth is guided by chemical snapshots taken by the young roots, allowing them to detect obstructions and coordinate the paths they take, new research led by Florida Institute of Technology finds.

Hormonal tug-of-war helps plant roots navigate their journey through the soil, new international study finds

A sophisticated mechanism that allows plant roots to quickly respond to changes in soil conditions has been identified by an international research team.

Scientists from the John Innes Centre and Sapienza University, Rome, combined mathematical and computer modelling with molecular genetics to show how roots can regulate their growth via the interactions of two antagonistic hormones, auxin and cytokinin.

Discovery shows soil dwelling bacteria adapt to richer or poorer conditions in marriage of convenience with plants

Scientists at the John Innes Centre have identified a unique mechanism that the soil dwelling bacterium Pseudomonas fluorescens uses to effectively exploit nutrients in the root environment.

The breakthrough offers multiple new applications, for the study of human pathogens, for synthetic biology, and for the productions of biosensors which help detect biological changes in plants and their environment.