“To find out something new about apples is really exciting”, says Dr Mary Parker of the Institute of Food Research. “Apples have been cultivated for about as long as human history and Fuji apples are particularly prized for their crispness, sweet flavour and keeping qualities “.
The variety was developed in Japan, but is widely grown in the Southern Hemisphere, China, Southern Europe and the USA. It is a cross between Ralls Janet and Red Delicious, and is itself used as a parent in breeding programmes.
“The reason these hairs have not been spotted before is probably because the full extent of their growth can only be appreciated in 3D”, says Dr Parker.
Dr Parker used light microscopy and scanning electron microscopy to reveal clumps of small, elongated and branched cells in the air spaces between cells. She named them callus hairs because of their resemblance to the cells which make up the white velvety tufts (sometimes mistaken for fungus) which develop around the seeds in some apple varieties.
The presence of callus hairs filling the airspaces of mature Fuji could account for the susceptibility of late-harvested apples to internal browning. Unrestricted gas flow through the fruit is vital for successful long-term storage particularly in modified atmospheres. Callus hair growth, with its own oxygen requirement and carbon dioxide output, may reduce the efficiency of gas transport through the spaces between cells.
“With this new knowledge, breeders could pick parent varieties with all the positive traits of Fuji apples but with less-developed callus hairs”, says Dr Parker. The presence or absence of callus hairs could also be used to test the authenticity of dried apples labelled as Fuji.
Preliminary studies have shown that callus hairs are rich in phytonutrients but may also contain allergens. Further investigations are needed to establish how growth conditions and orchard management affect the extent of callus hair development.For more information please contact Dr Mary Parker
Climate change, population growth may lead to open ocean aquaculture
05.10.2017 | Oregon State University
New machine evaluates soybean at harvest for quality
04.10.2017 | University of Illinois College of Agricultural, Consumer and Environmental Sciences
University of Maryland researchers contribute to historic detection of gravitational waves and light created by event
On August 17, 2017, at 12:41:04 UTC, scientists made the first direct observation of a merger between two neutron stars--the dense, collapsed cores that remain...
Seven new papers describe the first-ever detection of light from a gravitational wave source. The event, caused by two neutron stars colliding and merging together, was dubbed GW170817 because it sent ripples through space-time that reached Earth on 2017 August 17. Around the world, hundreds of excited astronomers mobilized quickly and were able to observe the event using numerous telescopes, providing a wealth of new data.
Previous detections of gravitational waves have all involved the merger of two black holes, a feat that won the 2017 Nobel Prize in Physics earlier this month....
Material defects in end products can quickly result in failures in many areas of industry, and have a massive impact on the safe use of their products. This is why, in the field of quality assurance, intelligent, nondestructive sensor systems play a key role. They allow testing components and parts in a rapid and cost-efficient manner without destroying the actual product or changing its surface. Experts from the Fraunhofer IZFP in Saarbrücken will be presenting two exhibits at the Blechexpo in Stuttgart from 7–10 November 2017 that allow fast, reliable, and automated characterization of materials and detection of defects (Hall 5, Booth 5306).
When quality testing uses time-consuming destructive test methods, it can result in enormous costs due to damaging or destroying the products. And given that...
Using a new cooling technique MPQ scientists succeed at observing collisions in a dense beam of cold and slow dipolar molecules.
How do chemical reactions proceed at extremely low temperatures? The answer requires the investigation of molecular samples that are cold, dense, and slow at...
Scientists from the Max Planck Institute of Quantum Optics, using high precision laser spectroscopy of atomic hydrogen, confirm the surprisingly small value of the proton radius determined from muonic hydrogen.
It was one of the breakthroughs of the year 2010: Laser spectroscopy of muonic hydrogen resulted in a value for the proton charge radius that was significantly...
17.10.2017 | Event News
10.10.2017 | Event News
10.10.2017 | Event News
20.10.2017 | Information Technology
20.10.2017 | Materials Sciences
20.10.2017 | Interdisciplinary Research