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231225s2008 xx |||||o 00| ||eng c |
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|a 10.1094/PDIS-92-11-1559
|2 doi
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|a pubmed24n0979.xml
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|a (DE-627)NLM293899851
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|a (NLM)30764439
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|a DE-627
|b ger
|c DE-627
|e rakwb
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|a eng
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|a Sugimoto, T
|e verfasserin
|4 aut
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|a Select Calcium Compounds Reduce the Severity of Phytophthora Stem Rot of Soybean
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|c 2008
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
|b c
|2 rdamedia
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| 338 |
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|a ƒa Online-Ressource
|b cr
|2 rdacarrier
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|a Date Revised 20.11.2019
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|a published: Print
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|a Citation Status PubMed-not-MEDLINE
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|a This study investigated the effects of several calcium compounds on Phytophthora stem rot of soybean (Glycine max) and fungal growth and zoospore release of a Phytophthora sojae isolate in vitro. All concentrations of five formulated calcium products [Ca(COOH)2-A, Ca(COOH)2-B, Ca(COOH)2-C, CaSO4-A, and CaCl2-A] and two chemical compounds [CaCl2 and Ca(NO3)2] applied prior to inoculation significantly suppressed disease incidence. Among all the products and chemicals, Ca(COOH)2-A was the most effective in suppressing the incidence of disease. In most cases, no significant relationship was observed between inhibition of growth rate in vitro and disease reduction in growth chamber tests. Therefore, disease suppression recorded in laboratory experiments using pathogen mycelium was likely due to the responses of plant tissues rather than the direct inhibition of pathogen fungal growth by the calcium compounds. The extent of disease reduction was related to increased calcium uptake by plants, suggesting that calcium was the effective element in reducing Phytophthora stem rot. Seedling tray experiments using zoospores indicated that the application of 10 mM Ca(COOH)2-A was more effective for reducing incidence of disease under growth chamber conditions, compared to other concentrations. The presence of 4 to 20 mM of all seven calcium solutions decreased the release of zoospores, although 0.4 mM of all compounds significantly increased zoospore release. Therefore, disease reduction in the growth-chamber experiments was due to the multiple effects of direct suppression on zoospore release and fungal growth in combination with the response of the host plant tissue to Ca(COOH)2-A
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|a Journal Article
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|a calcium chloride
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|a calcium formate
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|a calcium nitrate
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|a calcium sulfate
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|a induced resistance
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|a Watanabe, K
|e verfasserin
|4 aut
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|a Yoshida, S
|e verfasserin
|4 aut
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|a Aino, M
|e verfasserin
|4 aut
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|a Irie, K
|e verfasserin
|4 aut
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|a Matoh, T
|e verfasserin
|4 aut
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|a Biggs, A R
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Plant disease
|d 1997
|g 92(2008), 11 vom: 11. Nov., Seite 1559-1565
|w (DE-627)NLM098181742
|x 0191-2917
|7 nnns
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| 773 |
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|g volume:92
|g year:2008
|g number:11
|g day:11
|g month:11
|g pages:1559-1565
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|u http://dx.doi.org/10.1094/PDIS-92-11-1559
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