Tag: mycorrhizae

A mycorrhiza (Greek: μυκός, mykós, “fungus” and ριζα, riza, “roots”, pl. mycorrhizae or mycorrhizas) is a symbiotic association composed of a fungus and roots of a vascular plant. In a mycorrhizal association, the fungus colonizes the host plant’s roots, either intracellularly as in arbuscular mycorrhizal fungi (AMF or AM), or extracellularly as in ectomycorrhizal fungi. They are an important component of soil life and soil chemistry. The association is generally mutualistic, but occasionally weakly pathogenic.

The Benefits of Engineered Soils

The Benefits of Engineered Soils

Engineered soil: it sounds like a new concept, but one historical record notes it is more than 1,000 years old. In the sixth century AD, a group of ascetic monks left the lush, green mainland of Ireland seeking a new, remote environment to practice their dedication and humility. Braving the

Soil Solutions

Soil Solutions

Engineered soil: it sounds like a new concept, but one historical record notes it is more than 1,000 years old. In the sixth century AD, a group of ascetic monks left the lush, green mainland of Ireland seeking a new, remote environment to practice their dedication and humility. Braving the

The Science of Seeds

The Science of Seeds

Remember how 10 blindfolded people in a room each describe the elephant from their own perspective? The same might be said of soil—the stuff we interchangeably refer to as ground, dirt, or surface covering. Eric C. Brevik, a professor of soil science at Dickinson State University in North Dakota, illustrates

Stopping Erosion Flat Out

Stopping Erosion Flat Out

Twenty years ago my brother and I started out as small excavating and general contractors,” says Chauncey Webster, president of East Coast Green Inc., in St. Thomas, PA. “Gradually we leaned more and more toward erosion control work.”

Comstock Seed Joins the S & S Seeds Group of Companies

The S & S Seeds Group of Companies announced that is has acquired the assets of Comstock Seed Company and the services of their professional staff Ed Kleiner and Stacey Sigafus. Comstock Seed is a leading seed collector and supplier to Federal, State, and Local projects in Nevada and California,

Improving the Soil

Improving the Soil

In revegetation, everything begins with the soil . . . usually poor soil.

Soils may become degraded during the construction of buildings, roadside projects, or mining or landfill operations, or because of overgrazing or deforestation. They lose their topsoil, usually the top 2- to 8-inch layer of the soil, where the

From the Ground Up

From the Ground Up

Anyone who’s worked with a containerized plant has seen evidence of how strong plant roots can be. Adhering tightly to the soil, roots form a living net of fibers that often require a sharp knife, or ax, to rend. Of course, with any erosion control project, plant materials (especially those

Staying Power

Staying Power

Sunshine Canyon Landfill handles the waste disposal needs of Los Angeles city and county businesses and residences. The facility is located in a highly visible site at the intersection of Interstate 5 and Highway 14 in Sylmar, CA. It has been under scrutiny by the public as well as city,

Going to Seed

Going to Seed

On September 11, 2001, Flight 93 went down in rural Shanksville, PA, after its passengers fought back against the terrorist hijackers. Ten years later, on September 11, 2011, a memorial site was dedicated. Hilltop Seeds, of Shippenville, PA, was the subcontractor selected to acquire the seeds and to do the

Revegetating With Native Plants

Revegetating With Native Plants

Field experience has made it clear that if one is to be successful growing native plant communities, a functional microbial community is imperative. Use of native seeds in revegetation follows the current societal focus on multiple use of lands, a policy toward enhancing ecosystem diversity and function, and conservation of

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