Effect of carbamate herbicides on VA mycorrhizal infection and plant growth

Ocampo, J. A.; Barea, J. M.

doi:10.1007/bf02220192

Cited by 51 publications

(25 citation statements)

References 18 publications

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“…Succinate dehydrogenase, a tricarboxylic acid cycle enzyme which has been reported to be an indicator of metabolically active fungal tissue in VAM (Mac-Donald & Lewis, 1978;MacDonald, 1980), can be examined directly in tissues using a chlorogenic assay (Pearse, 1968). Using this technique, decreases in VAM fungal activity have been shown to occur after herbicide application (Ocampo & Barea, 1985) or as mycorrhizas age ) and which were not apparent when the normal non-vital staining of root tissue was employed. In the present study the succinate dehydrogenase assay was used to determine whether the metabolic activity of VAM fungi is affected by fungicide treatments prior to detectable changes in plant response or in mycorrhizal colonization revealed by a non-vital staining method.…”

Section: Introductionmentioning

confidence: 99%

Depressed Metabolic Activity of Vesicular‐arbuscular Mycorrhizal Fungi After Fungicide Applications

1987

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SUMMARYApplication to soil of either benomyl or captan significantly decreased the growth of vesiculararbuscular mycorrhizal (VAM) onion (Allium cepa L. cv. Hyper) plants 4 weeks after treatment but non-VAM plants were not affected. Fungal colonization of the onion roots, as indicated by non-vital staining with chlorozole black E, was depressed 2 weeks after fungicide application. However, decreases in metabolically active VAM fungal tissue, revealed by a succinate dehydrogenase assay, could be detected as soon as 3 d after fungicide treatment. There was little difference between the fungicides in their effect on the VAM fungi used. The usefulness of the succinate dehydrogenase assay in predicting effects of fungicide is discussed.

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Section: Introductionmentioning

confidence: 99%

Depressed Metabolic Activity of Vesicular‐arbuscular Mycorrhizal Fungi After Fungicide Applications

1987

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“…Several photosynthetic inhibitor herbicides have no effect on VA mycorrhizas (Ocampo and Barea, 1985). However, other photosynthethic inhibitor herbicides affect VA mycorrhizas depending on the experimental conditions used (South et al, 1980;Spokes et al, 1981).…”

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confidence: 99%

Effect of cyanazine herbicide on VA mycorrhizal infection and growth ofPisum sativum

1988

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The effect of the photosynthetic inhibitor herbicide Cyanazine on VA mycorrhiza and on pea plant growth was examined. Plant growth was decreased by Cyanazine applied at the rate of 0.05 and 0.1 mg ml -~ . Cyanazine only decreased VA mycorrhiza of pea roots when applied at high doses (0.1 mg ml-l). However, no direct effect of the herbicide on VA endophyte development was found. These results suggest that the inhibitory effect of Cyanazine on VA mycorrhiza took place via influence on plant metabolism and growth.VA mycorrhizas alleviated the deleterious effect of the herbicide on plant growth when applied at moderate (0.05 mg ml ~ ) but not at high (0.1 mg ml-i) doses.

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“…In contrast, the herbicide such as Phenmedipham (used in NH) applied by foliar spray or soil dressing could inhibit photosynthesis (Ocampo and Barea 1985). Thereafter, less photosynthetic products distributed in citrus roots might indirectly suppress AM development.…”

Section: Results and Disscussionmentioning

confidence: 99%

Arbuscular mycorrhizal fungi associated with citrus orchards under different types of soil management, southern China

Wang¹,

Zhang²,

Shu³

et al. 2012

PLANT SOIL ENVIRON

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Communities of arbuscular mycorrhizal fungi (AMF) were studied in sod culture (SC), straw mulching (NM), and herbicide treated and no-tillage (NH) citrus orchards, respectively. The highest total colonization rate (39.47%) and hyphal length density (1.15 m/g soil) were found in SC, the highest spore numbers (1024 spores/100 g soil) in NM, while the lowest ones (31.50%, 0.94 m/g soil and 719 spores/100 g soil) in NH and they varied significantly among three different types of orchards. Total 18 AMF species belonging to five families, Acaulosporaceae (four species), Claroideoglomeraceae (two species), Gigasporaceae (one species), Glomeraceae (nine species) and Pacisporaceae (two species) were identified, and Glomus aggregatum and Claroideoglomus etunicatum were the dominant species in all surveyed plots. The redundancy analysis showed that AMF community structure was influenced greatly by pH, soil management, soil organic matter (C ox ) and available phosphorus (P Olsen ). In SC orchards, species richness and Shannon-Wiener index of AMF were notably higher than in other treated orchards. So, it is reasonable to select SC as the best practice in citrus orchard in order to enhance AMF benefits.

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Effect of carbamate herbicides on VA mycorrhizal infection and plant growth

Cited by 51 publications

References 18 publications

Depressed Metabolic Activity of Vesicular‐arbuscular Mycorrhizal Fungi After Fungicide Applications

Depressed Metabolic Activity of Vesicular‐arbuscular Mycorrhizal Fungi After Fungicide Applications

Effect of cyanazine herbicide on VA mycorrhizal infection and growth ofPisum sativum

Arbuscular mycorrhizal fungi associated with citrus orchards under different types of soil management, southern China

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