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Classical and augmentative biological control against ... - IOBC-WPRS

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Appendix 6. Primary literature (2007-2009) on <strong>biological</strong> <strong>control</strong> <strong>against</strong> Fusarium oxysporum<br />

Abo-Elyousr, K. A. M. <strong>and</strong> H. M. Mohamed (2009). "Biological Control of Fusarium Wilt in Tomato by Plant Growth-Promoting Yeasts <strong>and</strong> Rhizobacteria." Plant Pathology Journal 25(2): 199-204.<br />

Three plant growth-promoting yeasts <strong>and</strong> two rhizobacteria were tested for <strong>control</strong>ling tomato wilt caused by Fusarium oxysporum L sp. lycopersici under greenhouse <strong>and</strong> field conditions. Under<br />

greenhouse <strong>and</strong> field conditions, all treatments were significantly reduced disease severity of tomato wilt relative to the infected <strong>control</strong>. The highest disease reductions in pots (75.0, 67.4%) <strong>and</strong> field<br />

(52.5, 42.4%) were achieved by Azospirillum brasilense <strong>and</strong> Bacillus subtilis compared to infected <strong>control</strong>. Under field condition all treatments produced the highest tomato yield compared to the <strong>control</strong><br />

plants inoculated with the pathogen<br />

.<br />

Al-Jedabi, A. A. (2009). "Biological <strong>control</strong> of Fusarium root-rot of sorghum." Research Journal of Agriculture <strong>and</strong> Biological Sciences 5(4): 465-473.<br />

several crops including sorghum that result in low grain yield. All antagonists showed inhibition of mycelial growth of F. oxysporum <strong>and</strong> the maximum inhibition was recorded when Bacillus subtilis as<br />

bio<strong>control</strong> agent (67.7%). The in vitro root colonization study demonstrated that after four days of germination, the cell counts obtained from the roots have increased <strong>and</strong> the maximum count is achieved<br />

by B. subtilis (16.9*105 cfu/cm root). The greenhouse pot experiment demonstrated that T. viride <strong>and</strong> B. subtilis resulted in more than 80% suppression of root rot. The reduction in fresh weight of roots<br />

amounted to 93.6% in the <strong>control</strong> treatment inoculated with F. oxysporum alone, whereas 71.1% reduction in fresh root weight was recorded for the treatments inoculated with both the pathogen <strong>and</strong> B.<br />

subtilis; 66.8% reduction in fresh root weight was recorded for the treatments inoculated with both the pathogen <strong>and</strong> T. harzianum. Root dry weight of the <strong>control</strong> treatment inoculated with only F.<br />

oxysporum decreased by 94.5% in relation to the non-inoculated <strong>control</strong>. Among the potential <strong>biological</strong> <strong>control</strong> agents in this study, B. cereus resulted in 42.3 reduction in root dry weight compared to<br />

the 94.5% reduction recorded for the <strong>control</strong> inoculated with F. oxysporum alone. 100% of the roots from the <strong>control</strong> treatment (F. oxysporum only) rendered growth of F. oxysporum compared to an<br />

incidence ranging from 20 to 55% for plants treated with B. subtilis, B. lecheniformis, B. cereus, T. harzianum <strong>and</strong> T. viride. Both chlorophyll fractions increased when treated with antagonist <strong>and</strong> the<br />

maximum enhancement was recorded when Bacillus subtilis used as antagonist compared with that of <strong>control</strong>. The maximum values of the carbohydrate components were recorded when Bacillus<br />

subtilis used as antagonist relative to those of <strong>control</strong>.<br />

Amini, J. (2009). "Induced Resistance in Tomato Plants Against Fusarium Wilt Invoked by Nonpathogenic Fusarium, Chitosan <strong>and</strong> Bion." Plant Pathology Journal 25(3): 256-262.<br />

The potential of nonpathogenic Fusarium oxysporum strain Avr5, either alone or in combination with chitosan <strong>and</strong> Bion, for inducing defense reaction in tomato plants inoculated with E oxyysporum f.<br />

sp lycopersici, was studied in vitro <strong>and</strong> glasshouse conditions. Application Bion at concentration of 5, 50, 100 <strong>and</strong> 500 mu g/ml, <strong>and</strong> the highest concentration of chitosan reduced in vitro growth of the<br />

pathogen. Nonpathogenic F oxysporum Avr5 reduced the disease severity of Fusarium wilt of tomato in split plants, significantly. Bion <strong>and</strong> chitosan applied on tomato seedlings at concentration 100 mu<br />

g a.i./plant; 15, 10 <strong>and</strong> 5 days before inoculation of pathogen. All treatments significantly reduced disease severity of Fusarium wilt of tomato relative to the infected <strong>control</strong>. The biggest disease reduction<br />

<strong>and</strong> increasing tomato growth belong to combination of nonpathogenic Fusarium <strong>and</strong> Bion. Growth rate of shoot <strong>and</strong> root markedly inhibited in tomato plants in response to tomato Fusarium wilt as<br />

compared with healthy <strong>control</strong>. These results suggest that reduction in disease incidence <strong>and</strong> promotion in growth parameters in tomato plants inoculated with nonpathogenic Fusarium <strong>and</strong> sprayed with<br />

elicitors could be related to the synergistic <strong>and</strong> cooperative effect between them, which lead to the induction <strong>and</strong> regulation of disease resistance. Combination of elicitors <strong>and</strong> nonpathogenic Fusarium<br />

synergistically inhibit the growth of pathogen <strong>and</strong> provide the first experimental support to the hypothesis that such synergy can contribute to enhanced fungal resistance in tomato. This chemical could<br />

provide a new approach for suppression of tomato Fusarium wilt, but its practical use needs further investigation.<br />

An<strong>and</strong>, R., S. Kulothungan, et al. (2009). "Assay of chitinase <strong>and</strong> beta-1,3 glucanase in Gossypium hirsutum seedlings by Trichoderma spp. <strong>against</strong> Fusarium oxysporum." International Journal of Plant<br />

Sciences (Muzaffarnagar) 4(1): 255-258.<br />

wilt in cotton. In this regard, the six species of Trichoderma, namely T. viride, T. virens [Gliocladium virens], T. hamatum, T. harzianum, T. koningii <strong>and</strong> T. reesi, were evaluated for its bio<strong>control</strong><br />

properties <strong>and</strong> induction of defence-related enzymes, namely chitinase <strong>and</strong> beta1-3-glucanase in 30 days old cotton (G. hirsutum) seedlings. Trichoderma spp. could efficiently <strong>control</strong> the growth rate of<br />

F. oxysporum. In vitro assay of chitinase <strong>and</strong> beta-1,3-glucanase revealed the maximum production by T. harzianum (56 U/ml) <strong>and</strong> T. hamatum (80 U/ml), respectively. It also produced appreciable<br />

quantities of defence enzymes. The maximum induction of chitinase <strong>and</strong> beta1-3-glucanase in plants was found to be 80 U/ml when challenged with T. harzianum, in addition to the enhancement of<br />

defence mechanism in plants. Trichoderma spp. improved the germination rate of seedlings.<br />

Anitha, A. <strong>and</strong> M. Rebeeth (2009). "Self-fusion of Streptomyces griseus enhances chitinase production <strong>and</strong> bio<strong>control</strong> activity <strong>against</strong> Fusarium oxysporum f. sp. lycopersici." Biosciences, Biotechnology<br />

Research Asia 6(1): 175-180.<br />

Protoplasts were isolated from Streptomyces griseus (MTCC - *4734) strain using lysing enzymes <strong>and</strong> self-fusion of Streptomyces griseus protoplasts was carried out using 50% polyethylene glycol<br />

(MW 1000, Sigma Chemicals Co., USA) in protoplast buffer. The regenerated 8 self fused Streptomyces griseus were studied detailed for chitinase production <strong>and</strong> bio<strong>control</strong> activity. Parent strain (PSg)<br />

128

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