Plant parasitic nematodes can devastate walnut orchards and may remain dormant deep in the soil profile for several years, beyond reach of traditional pesticides. Nematicides are often very toxic to beneficial organisms and detrimental to the environment; several of the most effective are being phased out. Developing novel methods of diagnosis and control requires characterizing pathogens and t...

Juglans L. (walnuts and butternuts) is an economically and ecologically important genus in the family Juglandaceae. All Juglans are important nut and timber trees. Juglans regia (Common walnut), J. sigillata (Iron walnut), J. cathayensis (Chinese walnut), J. hopeiensis (Ma walnut), and J. mandshurica (Manchurian walnut) are native to or naturalized in China. A strongly supported phylogeny of th...

Anthracnose, which is caused by the fungus Colletotrichium gloeosporides, is a widespread and destructive disease on container-grown azalea. This disease is especially common in container nurseries, which are located near the Gulf of Mexico in Florida, Alabama, Mississippi, Louisiana, and Texas. Anthracnose is a hot, wet weather disease. This year, frequent showers and daily cloud cover through...

The content of walnut metabolites is related to its nutritive value and physiological characteristics, however, comprehensive information concerning the metabolome of walnut kernels is limited. In this study we analyzed the metabolites of walnut kernels at five developmental stages from filling to ripening using GC-MS-based untargeted metabolomics; of a total 252 peaks identified, 85 metabolite...

Acidithiobacillus ferrooxidans is a Gram-negative bacterium that obtains energy by oxidizing Fe(2+) or reduced sulfur compounds. This bacterium contributes to the formation of acid mine drainage (AMD). This study determined whether walnut shell powder inhibits the growth of A. ferrooxidans. First, the effects of walnut shell powder on Fe(2+) oxidization and H⁺ production were evaluated. Second,...

Anthracnose is a general term for sunken lesions and blights on stems, leaves and fruits which causes economic damage to agricultural products. This study, conducted to identify Colletotrichum species associated with anthracnose symptoms on some plants in Khuzestan province (Iran) using morphological and molecular methods. During 2016–17, 40 leaf and fruit samples showing anthracnose symptoms (...

Common walnut (Juglans regia L) is an economically important species cultivated worldwide for its wood and nuts. It is generally accepted that J. regia survived and grew spontaneously in almost completely isolated stands in its Asian native range after the Last Glacial Maximum. Despite its natural geographic isolation, J. regia evolved over many centuries under the influence of human management...

Walnuts contain multiple ingredients that, individually, have been shown to slow cancer growth, including omega-3 fatty acids, antioxidants, and phytosterols. In previous research, consumption of walnuts has slowed the growth of implanted breast cancers. We wanted to determine whether regular walnut consumption might reduce the risk for developing cancer. Homozygous male C(3)1 TAg mice were bre...

BACKGROUND In vitro studies rank walnuts (Juglans regia) among the plant foods high in antioxidant capacity, but whether the active constituents of walnuts are bioavailable to humans remains to be determined. The intention of this study was to examine the acute effects of consuming walnuts compared to refined fat on meal induced oxidative stress. At issue is whether the ellagitannins and tocoph...

Regular nut consumption is associated with lower adiposity and reduced weight gain in adulthood. Walnut feeding studies have observed minimal effect on body weight despite potential additional energy intake. Several mechanisms may explain why consuming nuts promotes weight control, including increased early phase satiety, possibly reflected in postprandial response of gastrointestinal and pancr...