Role of organic matter in growth of a vesicular-arbuscular mycorrhizal fungus in soil

Hepper, Christine M.; Warner, A.

doi:10.1016/s0007-1536(83)80219-8

Cited by 71 publications

(28 citation statements)

References 4 publications

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“…In each variety, the response of sugar beet plants without PDB to the increasing of chicken manure (OM) application was vigorous and highly significant. These results are in agreement with those of Hepper and Warner (1983) and Soedarjo and Habte (1993). In the same line, Buraczynska (2004) concluded that the use of organic fertilizers led to a significant increase in shoot and root yields.…”

Section: -Shoot Yield and P Concentrationsupporting

confidence: 84%

Response of Two Sugar Beet Varieties to Chicken Manure and Phosphorine Application

Badr²,

A.E

2009

Alexandria Science Exchange Journal: An International Quarterly

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The present study was conducted to investigate the effect of chicken manure at zero, 10 and 20 ton/fed.rates and biofertilization (phosphate dissolving bacteria PDB (Bacillus megaterium var. phosphaticum inoculation)) on growth, chemical composition, yield and sugar quality of two sugar beet varieties ('Lados' and 'T WS 1436'). The experiment was carried out at South Tahrir Region El-Behira during the two successive growing winter seasons of 2006/2007 and 2007/2008. The experimental design used was a split split plot with four replicates. All data showed that Lados gave the highly significant difference compared to TWS 1436 in all growth attributes and sugar beet quality parameters except for purity%, Na% and extractable sucrose%. Also, the results showed that with increasing chicken manure rates from control to 10 and 20 ton/fed. , the means of growth attributes and sugar beet quality parameters tended to increase significantly at the different sample dates in both seasons, except T.S.S.% and A.C. which were reduced significantly in both seasons. All growth attributes values at the different sample dates in both seasons were increased significantly by inoculation with phosphate dissolving bacteria. On the other hand, there was no significant difference in extractable sucrose%, A.C. andamino-N between both varieties with and without PDB inoculation. In contrast, K, Na and T.S.S. percentages were decreased significantly with inoculation by PDB. In each plant varieties, the response of sugar beet plants without PDB to the increasing of chicken manure (OM) application was vigorous and highly significant. On the other hand, the sugar beet plants inoculated with the PDB had a slight difference and not significant at different OM rates in both varieties. In general, the bacteria have a significant effect when an organic matter level was very low. It can be concluded that inoculation with phosphate dissolving bacteria singly or application of chicken manure singly or combination of them had significantly increased all sugar beet growth attributes and quality parameters under the same conditions of this experiment. Also, Lados variety produced higher sugar beet growth attributes and quality parameters compared to the other variety TWS 1436

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Section: -Shoot Yield and P Concentrationsupporting

confidence: 84%

Response of Two Sugar Beet Varieties to Chicken Manure and Phosphorine Application

Badr²,

A.E

2009

Alexandria Science Exchange Journal: An International Quarterly

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“…Similar results were obtained also by Saif (95) who observed not only increased root colonization but also a higher sporulation of AM fungi when the soil was amended with plant residues under field conditions in a tropical agroecosystem. Others (37,44,101) have shown that the growth and activity of AM fungi are stimulated in the presence of soil organic matter. The effects may be due to microbial release of soluble organics (sugars) when organic matter is digested because the effects are induced also by additions of pure glucose into non-sterile substrate (34).…”

Section: Effect Of Soil Organic Materials As Substrates Of Microorganmentioning

confidence: 99%

Interactions of arbuscular mycorrhizal fungi with other soil organisms

Gryndler

2000

Arbuscular Mycorrhizas: Physiology and Function

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Abstract:futeractions between arbuscular mycorrhizal (AM) fungi and other soil microorganisms (including bacteria, saprophytic microfungi, actinomycetes and some microarthropods) are described as well as the phenomena of the rhizosphere, mycorrhizosphere and mycosphere. Examples are given of how the growth of AM fungi and the formation of mycorrhizas are affected by the other soil organisms. All of these co-occuring positive and negative influences upon the interaction between AM fungi and plant roots are shown to underscore the complexity of the soil environment and difficulty in reaching general conclusions.

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“…Although it has not yet been possible to grow AM fungi in the absence of their host, early experiments Current address : Department of Crop Protection, Danish Institute of Agricultural Sciences, Flakkebjerg DK-4200 Slagelse, Denmark (e-mail sabine.ravnskov!risoe.dk) suggested that they might possess some capacity for saprotrophic growth (Hepper & Warner, 1983). Hepper (1979) reported that growth of hyphae from germinated spores on agar increased in response to yeast or peptone and this effect was later ascribed to the requirement for an external supply of specific amino acids (Hepper & Jakobsen, 1983).…”

Section: mentioning

confidence: 99%

Effects of various organic compounds on growth and phosphorus uptake of an arbuscular mycorrhizal fungus

et al. 1999

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The influence of three organic compounds and bakers' dry yeast on growth of external mycelium and phosphorus uptake of the arbuscular mycorrhizal fungus Glomus intraradices Schenck & Smith (BEG 87) was examined. Two experiments were carried out in compartmentalized growth systems with root-free sand or soil compartments. The sand and soil in the root-free compartments were left untreated or uniformly mixed with one of the following substrates (0n5 mg g −" soil) : bakers' dry yeast, bovine serum albumin, starch or cellulose. Effects of the organic substrates on biomass and hyphal length density of the arbuscular mycorrhizal fungus were examined by using specific fatty acid signatures in combination with direct microscopy. Micro-organisms other than the arbuscular mycorrhizal fungus were measured by fatty acid signatures, and radioactive $$P labelling of the root-free soil was used to determine arbuscular mycorrhizal hyphal phosphorus uptake. In general, hyphal growth of G. intraradices was enhanced by yeast and bovine serum albumin, whereas the carbon sources, starch and cellulose, depressed fungal growth. By analysing the fatty acid 16 : 1ω5 from phospholipids (indicating mycelium) and neutral lipids (indicating storage structures) it was shown that increased fungal growth due to yeast was mainly in vegetative hyphae and less in storage structures. Arbuscular mycorrhizal hyphal phosphorus uptake was decreased by cellulose, but unaffected by the other substrates compared with the control. This means that both growth and phosphorus transport by the arbuscular mycorrhizal fungus were decreased under cellulose treatment. However, the composition of the microbial community varied under different substrate conditions indicating a possible interactive component with arbuscular mycorrhizal hyphal growth and phosphorus uptake.

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Role of organic matter in growth of a vesicular-arbuscular mycorrhizal fungus in soil

Cited by 71 publications

References 4 publications

Response of Two Sugar Beet Varieties to Chicken Manure and Phosphorine Application

Response of Two Sugar Beet Varieties to Chicken Manure and Phosphorine Application

Interactions of arbuscular mycorrhizal fungi with other soil organisms

Effects of various organic compounds on growth and phosphorus uptake of an arbuscular mycorrhizal fungus

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