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Arbuscular mycorrhizal Glomus versiforme induced bioprotection of apple tree against scar skin disease

100%

Yang S., Zhang Z., Zhang Z., Shi S.

Acta Scientiarum Polonorum. Hortorum Cultus

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2014

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tom 13

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nr 5

Apple scar skin viroid (ASSVd) is a serious pathogen of apple fruits that results in severe loss in apple production. Up to nowadays, many ASSVd management options are applied to resist the disease, but the diserable resulits are not achieved. Therefore, this study was conducted in 2010–2012 at experimental field of Penglai City, Shandong Province, China (E 120°57’22’’, N 370°38’33’’) to investigate whether arbuscular mycorrhizal (AM) Glomus versiforme protects Red Fuji apple trees (Malus × domestica Borkh) against apple scar skin viroid. Red Fuji apple trees were inoculated with Glomus versiforme and then potential protection mechanism was explored and compared to noninoculated plants. The results showed that inoculation with Glomus versiforme significantly increased root length colonization rate and clearly decreased the percentage of disease severity of apple scar skin disease. Compared to non-inoculated plants, Glomus versiforme obviously enhanced total nitrogen and phosphorus concentrations in leaves. Root colonization by Glomus versiforme induced an increase in defense-related enzyme activities in fruits, such as the enhanced activities of catalase, ascorbate peroxidase, chitinase and glucanase. Significant differences in acid content of fruit and fruit yield were observed as apple roots were colonized by Glomus versiforme. It is therefore concluded that Glomus versiforme can be regarded as a biocontrol agent to protect apple trees against the infection with ASSVd.

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Acaulospora scrobiculata and Glomus versiforme [Glomeromycota], newly and second time, respectively, found in Poland

100%

Blaszkowski J., Adamska I., Czerniawska B.

Acta Mycologica

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2003

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tom 38

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nr 1-2

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Effects of three Glomus species as biocontrol agents against Verticillium-induced wilt in cotton

67%

Kobra N., Jalil K., Youbert G.

Journal of Plant Protection Research

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2009

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tom 49

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nr 2

185-189

The objective of this investigation was to study the effects of three Glomus species: G. etunicatum, G. intraradices and G. versiforme on the development of verticillium wilt in cotton plants. Results indicated that the influence of arbuscular mycorrhizal fungi as a biocontrol agents were different among three Glomus species. In diseased cotton plants colonized by G. etunicatum, the disease index was lower than others and also, higher colonization percentage was relevant to these plants. On the other hand, the establishment of mycorrhizal symbiosis and development of structure of AMF were reduced when both symbiotic and pathogenic fungi infected the same root. In addition, the symptoms of veticillium wilt were diminished too. These results revealed that the beneficial effects of mycorrhiza could alleviate the pathogenic effects of V. dahliae and also a competitive interaction existed between these pathogenic and symbiont fungi.

Ograniczanie wyników

1 Acta Mycologica

1 Acta Scientiarum Polonorum. Hortorum Cultus

1 Journal of Plant Protection Research

1 Adamska I.

1 Blaszkowski J.

1 Czerniawska B.

1 Jalil K.

1 Kobra N.

1 Shi S.

1 Yang S.

1 Youbert G.

1 Zhang Z.

1 2014

1 2009

1 2003

Arbuscular mycorrhizal Glomus versiforme induced bioprotection of apple tree against scar skin disease

Acaulospora scrobiculata and Glomus versiforme [Glomeromycota], newly and second time, respectively, found in Poland

Effects of three Glomus species as biocontrol agents against Verticillium-induced wilt in cotton