Lignin is the main component of walnut endocarp, however, we know little about transcriptional responses and its potential regulatory mechanisms lignin formation in endocarp. Here selected two genotypes with different endocarp thickness, ‘Liaoning 7’ (L7) ‘Zanmei’ (ZM; thicker than L7), to study response mechanism that caused difference this character between them. The time regularity depositio...

Crown gall of walnut (Juglans sp.), caused by the bacterium Agrobacterium tumefaciens, greatly impacts the CA walnut industry. To determine the genetic diversity of A. tumefaciens throughout the Central Valley of CA, we collected isolates from 12 walnut growing counties. A total of 340 A. tumefaciens biovar 1 isolates were collected and tested for the presence of the Ti plasmid by PCR; 267 isol...

Thousand cankers disease (TCD) is a newly recognized disease of various species of walnut (Juglans). Black walnut (Juglans nigra) is particularly susceptible to TCD and during the past decade it has devastated plantings of black walnut in most western states. In July 2010 thousand cankers disease was found over an extensive area around Knoxville, Tennessee, the first finding of TCD within the n...

Timothy I. Carter, MD, Charles J. Yeo, MD, Harish Lavu, MD* Department of Surgery, SUNY Downstate Medical Center, 450 Clarkson Avenue Brooklyn, New York, NY 11203, USA; Department of Surgery, The Jefferson Pancreas Biliary and Related Cancer Center, Thomas Jefferson University, 1015 Walnut Street, Curtis Building, Suite 620, Philadelphia, PA 19107, USA; Department of Surgery, The Jefferson Panc...

OBJECTIVE To examine whether the short-term consumption of walnuts, a food rich in alpha-linolenic acid, affects levels of serum prostate-specific antigen (PSA), a marker of prostate enlargement, inflammation, and cancer. METHODS Using data from a 12-month randomized crossover study examining the effect of walnut consumption on body composition, we examined whether increased walnut consumptio...

Walnut, Juglans regia L. is the most economically important member of the Juglandaceae family and is the most valuable nut crop in the world. Recently, it has increased greatly in acreage and in production. Although a number of research programs about plant apomixis have been carried out around the world, few were representd by the Juglandaceae. This paper presents a brief review of the current...