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Biofumigation on Post-Harvest Diseases of Fruits Using a New Volatile-Producing Fungus of Ceratocystis fimbriata.

Li Q, Wu L, Hao J, Luo L, Cao Y, Li J - PLoS ONE (2015)

Bottom Line: Two post-harvest diseases, peach brown rot caused by Monilinia fructicola and citrus green mold caused by Penicillium digitatum, were controlled during a 4-day storage by enclosing wound-inoculated fruits with 10 standard diameter Petri plate cultures of C. fimbriata in a 15 L box.The fruits were freshly inoculated at onset of storage and the cultures of C. fimbriata were 6 days old.Percentage of control was 92 and 97%, respectively.

View Article: PubMed Central - PubMed

Affiliation: Beijing Engineering Research Center of Seed and Plant Health (BERC-SPH) / Beijing Key Laboratory of Seed Disease Testing and Control (BKL-SDTC), Beijing, P. R. China.

ABSTRACT
A variety of volatile organic compounds (VOCs) produced by Ceratocystis fimbriata have strong bioactivity against a wide range of fungi, bacteria and oomycetes. Mycelial growth, conidial production, and spore germination of fungi and oomycetes were significantly inhibited after exposure to cultures of C. fimbriata, and colony formation of bacteria was also inhibited. Two post-harvest diseases, peach brown rot caused by Monilinia fructicola and citrus green mold caused by Penicillium digitatum, were controlled during a 4-day storage by enclosing wound-inoculated fruits with 10 standard diameter Petri plate cultures of C. fimbriata in a 15 L box. The fruits were freshly inoculated at onset of storage and the cultures of C. fimbriata were 6 days old. Percentage of control was 92 and 97%, respectively. After exposure to C. fimbriata VOCs, severely misshapen hyphae and conidia of these two post-harvest pathogens were observed by scanning electron microscopy, and their pathogenicity was lost or greatly reduced.

No MeSH data available.


Related in: MedlinePlus

Lesion size (mm2) and control effect (%) of peach brown rot and citrus green mold treated by 0, 3, 5, 7, and 9 plates of Ceratocystis fimbriata culture 4 days post inoculation (DPI).Error bars represent the standard deviation of ten replicates.
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pone.0132009.g004: Lesion size (mm2) and control effect (%) of peach brown rot and citrus green mold treated by 0, 3, 5, 7, and 9 plates of Ceratocystis fimbriata culture 4 days post inoculation (DPI).Error bars represent the standard deviation of ten replicates.

Mentions: The effect of VOCs dose on the two diseases was determined by fumigating the inoculated fruits with different amounts of C. fimbriata cultures in boxes for 4 days immediately after the inoculation. Untreated peaches and citrus were 100% infected, with lesion sizes of 909 mm2 and 987 mm2 respectively. Disease control for both of the plant diseases improved as the number of C. fimbriata cultures per box increased, with control as high as 90% and 98% with 9 plates and as low as 44% and 57% with three plates (Fig 4).


Biofumigation on Post-Harvest Diseases of Fruits Using a New Volatile-Producing Fungus of Ceratocystis fimbriata.

Li Q, Wu L, Hao J, Luo L, Cao Y, Li J - PLoS ONE (2015)

Lesion size (mm2) and control effect (%) of peach brown rot and citrus green mold treated by 0, 3, 5, 7, and 9 plates of Ceratocystis fimbriata culture 4 days post inoculation (DPI).Error bars represent the standard deviation of ten replicates.
© Copyright Policy
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4492557&req=5

pone.0132009.g004: Lesion size (mm2) and control effect (%) of peach brown rot and citrus green mold treated by 0, 3, 5, 7, and 9 plates of Ceratocystis fimbriata culture 4 days post inoculation (DPI).Error bars represent the standard deviation of ten replicates.
Mentions: The effect of VOCs dose on the two diseases was determined by fumigating the inoculated fruits with different amounts of C. fimbriata cultures in boxes for 4 days immediately after the inoculation. Untreated peaches and citrus were 100% infected, with lesion sizes of 909 mm2 and 987 mm2 respectively. Disease control for both of the plant diseases improved as the number of C. fimbriata cultures per box increased, with control as high as 90% and 98% with 9 plates and as low as 44% and 57% with three plates (Fig 4).

Bottom Line: Two post-harvest diseases, peach brown rot caused by Monilinia fructicola and citrus green mold caused by Penicillium digitatum, were controlled during a 4-day storage by enclosing wound-inoculated fruits with 10 standard diameter Petri plate cultures of C. fimbriata in a 15 L box.The fruits were freshly inoculated at onset of storage and the cultures of C. fimbriata were 6 days old.Percentage of control was 92 and 97%, respectively.

View Article: PubMed Central - PubMed

Affiliation: Beijing Engineering Research Center of Seed and Plant Health (BERC-SPH) / Beijing Key Laboratory of Seed Disease Testing and Control (BKL-SDTC), Beijing, P. R. China.

ABSTRACT
A variety of volatile organic compounds (VOCs) produced by Ceratocystis fimbriata have strong bioactivity against a wide range of fungi, bacteria and oomycetes. Mycelial growth, conidial production, and spore germination of fungi and oomycetes were significantly inhibited after exposure to cultures of C. fimbriata, and colony formation of bacteria was also inhibited. Two post-harvest diseases, peach brown rot caused by Monilinia fructicola and citrus green mold caused by Penicillium digitatum, were controlled during a 4-day storage by enclosing wound-inoculated fruits with 10 standard diameter Petri plate cultures of C. fimbriata in a 15 L box. The fruits were freshly inoculated at onset of storage and the cultures of C. fimbriata were 6 days old. Percentage of control was 92 and 97%, respectively. After exposure to C. fimbriata VOCs, severely misshapen hyphae and conidia of these two post-harvest pathogens were observed by scanning electron microscopy, and their pathogenicity was lost or greatly reduced.

No MeSH data available.


Related in: MedlinePlus