Navigation Links
Kazak apple research key to preventing blue mold

KEARNEYSVILLE, WV Blue mold, caused by the fungus Penicillium expansum, is the scourge of apple breeders and producers throughout the world, causing extensive losses to stored apples. As the familiar saying goes, one bad apple really can spoil the whole bunchgood fruit stored in containers with decaying fruit often absorbs a moldy odor and flavor.

In a survey of the New York market from 1972 to 1984, blue mold caused by Penicillium expansum was the most damaging parasitic postharvest disease of apples. Documented losses from blue mold and other postharvest diseases have focused on the fate of apples in storage, in transit, and in markets, but little information is available on the significant losses that can occur in apples sold to restaurants and in groceries. Despite the severity of this problem, apple breeders have not been able to evaluate new fruit varieties for blue mold resistance because of the apple's gene pool.

A theory called "geography of genes" posits that breeders looking to create mold-resistant apples should obtain breeding seeds, or germplasm, from the fruit's geographic area of origin. The geography of genes theory has assumed particular significance as fruits' natural habitats are quickly being eliminated.

Based on this gene theory and looking for answers to the blue mold problem, Wojciech J. Janisiewicz, a researcher at the U.S. Department of Agriculture's Agricultural Research Service, undertook a study of a new apple germplasm collection from the center of origin in Kazakhstan. The germplasm represents a much broader gene pool and was evaluated for resistance to blue mold. Apples were harvested from trees that were propagated from budwood collected in Kazakhstan and from seedling trees originating from seeds of the same trees as the Elite budwood or from other wild seedling trees in Kazakhstan.

The objective of the study was to determine disease resistance to postharvest blue mold decay among apples from the Kazakhstan germplasm (Kazak) collection. According to Janisiewicz, "Our results indicate a greater genetic diversity among the Kazak apple collection than among cultivated apples, as evidenced by their broad range of fruit maturity, quality, and disease resistance patterns. The immune and resistant accessions may serve as a source of resistance in breeding programs and can be useful in explaining the mechanism of resistance to blue mold in apples. This may lead to the utilization of any identified high-resistance germplasm in apple breeding programs using traditional or genetic engineering approaches."


Contact: Michael W. Neff
American Society for Horticultural Science

Related biology news :

1. Comparing apples and pears
2. Popular apple variety harbors unusual cell growth
3. Naturally-occurring apple compounds reduce risk of pancreatic cancer
4. Surprise in the organic orchard -- a healthier worm in the apple
5. Researchers develop new self-training gene prediction program for fungi
6. UI researchers find potentially toxic substance present in Chicago air
7. Researchers study how pistachios may improve heart health
8. The Rett Syndrome Research Trust launches operations
9. Researchers discover that growing up too fast may mean dying young in honey bees
10. Researchers study acoustic communication in deep-sea fish
11. Researcher working on destruction of chemical weapons
Post Your Comments:
Related Image:
Kazak apple research key to preventing blue mold
(Date:5/12/2016)... 2016 , a brand of ... results from the Q1 wave of its quarterly wearables ... consumers, receptivity to a program where they would receive ... insurance company. "We were surprised to see ... Michael LaColla , CEO of Troubadour Research, "primarily because ...
(Date:4/28/2016)... First quarter 2016:   , Revenues amounted ... quarter of 2015 The gross margin was 49% (27) ... the operating margin was 40% (-13) Earnings per share ... operations was SEK 249.9 M (21.2) , Outlook   ... M. The operating margin for 2016 is estimated to ...
(Date:4/15/2016)... -- A new partnership announced today will help life ... a fraction of the time it takes today, ... insurance policies to consumers without requiring inconvenient and ... rapid testing (A1C, Cotinine and HIV) and higi,s ... pulse, BMI, and activity data) available at local ...
Breaking Biology News(10 mins):
(Date:6/23/2016)... , June 23, 2016 /PRNewswire/ - FACIT ... Ontario biotechnology company, Propellon Therapeutics ... development and commercialization of a portfolio of first-in-class ... Epigenetic targets such as WDR5 represent an exciting ... significantly in precision medicine for cancer patients. Substantial ...
(Date:6/23/2016)... ... June 23, 2016 , ... Charm ... Mold) microbial test has received AOAC Research Institute approval 061601. , “This is ... last year,” stated Bob Salter, Vice President of Regulatory and Industrial Affairs. “The ...
(Date:6/23/2016)... June 23, 2016   EpiBiome , a precision ... million in debt financing from Silicon Valley Bank (SVB). ... and to advance its drug development efforts, as well ... "SVB has been an incredible strategic partner ... a traditional bank would provide," said Dr. Aeron ...
(Date:6/23/2016)... ... , ... In a new case report published today in STEM CELLS Translational ... lymphedema after being treated for breast cancer benefitted from an injection of stem cells ... this debilitating, frequent side effect of cancer treatment. , Lymphedema refers to ...
Breaking Biology Technology: