Variations in nitrogen, zinc, and sugar concentrations in Chinese fir seedlings grown on shrubland and plowed soils in response to arbuscular mycorrhizae-mediated process

Piao, He-Chun; Liu, Cong‐Qiang

doi:10.1007/s00374-011-0538-4

Cited by 16 publications

(6 citation statements)

References 46 publications

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“…By increasing the absorption surface of plant root systems, AMF have an impact on the enhanced uptake of water and nutrients Read 2008, Piao andLiu 2011). In our experiment, the results did not indicate any significant effect of arbuscular mycorrhizal fungi on the nutritional status of plant expressed as the content of nutrients in leaves, except for the impact on the content of Cu and Zn.…”

Section: Discussioncontrasting

confidence: 59%

Effect of mycorrhiza and phosphorus content in nutrient solution on the yield and nutritional status of tomato plants grown on rockwool or coconut coir

Kowalska

Konieczny

Gąstoł

et al. 2015

AFSci

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Effects of P level in nutrient solution and the colonization of roots by arbuscular mycorrhizal fungi (AMF) on P uptake by tomato plants, their nutritional status, yield and quality of fruits were studied. Plants were grown on rockwool or coconut coir. Inoculation by a mixture of several AMF species was performed three times during the growing period. The mycorrhizal frequency in roots inoculated with AMF amounted to 35.79 – 50.82%. The highest level of mycorrhiza was found in plants receiving nutrient solution with a lower concentration of P. Among the experimental factors, only P level influenced the fruit yield, being higher from plants receiving a nutrient solution with a higher P level. A higher concentration of P in nutrient solution imposed better nutritional status of plants. Higher contents of ascorbic acid and total soluble sugars were found in fruits collected from inoculated plants, grown on rockwool.

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Section: Discussioncontrasting

confidence: 59%

Effect of mycorrhiza and phosphorus content in nutrient solution on the yield and nutritional status of tomato plants grown on rockwool or coconut coir

Kowalska

Konieczny

Gąstoł

et al. 2015

AFSci

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“…While it has been well established that the formation of AM can significantly enhance plant acquisition of P (Smith and Read 2008), AM also play an important, albeit less well understood, role in the acquisition Zn, N, Cu, K, and other nutrients (Frey and Schuepp 1993;Piao and Liu 2011;Johansen et al 1993;Marschner and Dell 1994;Cavagnaro 2008;Bürkert and Robson 1994). These improvements in plant nutrient acquisition can result in improvements in plant growth (Johnson et al 1997) and competitive ability (Facelli and Facelli 2002) and may also be important in improving the nutritive value of crops (Cardoso and Kuyper 2006;Burns et al 2010).…”

Section: Introductionmentioning

confidence: 97%

Arbuscular mycorrhizas modify tomato responses to soil zinc and phosphorus addition

Watts‐Williams

Cavagnaro

2011

Biol Fertil Soils

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Arbuscular mycorrhizas (AM) play an important role in plant P and Zn nutrition; however, relatively few studies have directly investigated the interactive effects of these nutrients on plants. Therefore, we undertook a glasshouse experiment to study the effects of Zn and P on AM formation and functioning. A mycorrhiza defective tomato mutant (rmc) and its mycorrhizal wild-type progenitor (76R) were used in this experiment. Plants were grown in soil amended with five Zn concentrations, ranging from deficient to toxic, and two levels of P addition. The addition of Zn and P to the soil over a range of concentrations had profound effects on plant growth and nutrition and mycorrhizal colonization. Mycorrhizal benefits were the greatest when plants were grown under low soil P and Zn. Furthermore, the effect of soil Zn supply on plant growth, nutrition, and AM colonization was strongly influenced by the concentration of P in the soil. Thus, studies of AM and Zn (or other nutrients of interest) should take into account the impact of soil P concentration on the role of AM in plant Zn acquisition, under both deficient and toxic soil Zn concentrations.

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“…The extraradical mycelium (ERM) of the fungus acts as an extension of the root system, which enables a more thorough exploration of the soil for nutrients that are then transported to the roots. Although the benefits of AM fungi are more common for nutrients that are immobile in the soil solution, such as phosphorus (P) and zinc [2,3], AM fungi can also enhance the nitrogen (N) nutrition of their hosts [46]. The extraradical AM fungal hyphae effectively acquire nitrate (NO 3  ) [7,8], ammonium (NH 4 + ) [912], and amino acids (AAs) from the external medium [1316].…”

mentioning

confidence: 99%

“…In terms of the mechanism for N transfer, Smith et al [21] suggested that AA or amides may be the compounds transferred from the fungus to the host. Along these lines, Kaldorf et al [22] suggested that NO 3 may be transferred. Bago et al [23] postulated that N may be transferred to the host as NH 4 + ; however, there was no direct evidence for this, and the indirect evidence was at best inconclusive.…”

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confidence: 99%

Forms of nitrogen uptake, translocation, and transfer via arbuscular mycorrhizal fungi: A review

Hai-ru

Liu

et al. 2012

Sci. China Life Sci.

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Arbuscular mycorrhizal (AM) fungi are obligate symbionts that colonize the roots of more than 80% of land plants. Experiments on the relationship between the host plant and AM in soil or in sterile root-organ culture have provided clear evidence that the extraradical mycelia of AM fungi uptake various forms of nitrogen (N) and transport the assimilated N to the roots of the host plant. However, the uptake mechanisms of various forms of N and its translocation and transfer from the fungus to the host are virtually unknown. Therefore, there is a dearth of integrated models describing the movement of N through the AM fungal hyphae. Recent studies examined Ri T-DNA-transformed carrot roots colonized with AM fungi in 15 N tracer experiments. In these experiments, the activities of key enzymes were determined, and expressions of genes related to N assimilation and translocation pathways were quantified. This review summarizes and discusses the results of recent research on the forms of N uptake, transport, degradation, and transfer to the roots of the host plant and the underlying mechanisms, as well as research on the forms of N and carbon used by germinating spores and their effects on amino acid metabolism. Finally, a pathway model summarizing the entire mechanism of N metabolism in AM fungi is outlined.

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Variations in nitrogen, zinc, and sugar concentrations in Chinese fir seedlings grown on shrubland and plowed soils in response to arbuscular mycorrhizae-mediated process

Cited by 16 publications

References 46 publications

Effect of mycorrhiza and phosphorus content in nutrient solution on the yield and nutritional status of tomato plants grown on rockwool or coconut coir

Effect of mycorrhiza and phosphorus content in nutrient solution on the yield and nutritional status of tomato plants grown on rockwool or coconut coir

Arbuscular mycorrhizas modify tomato responses to soil zinc and phosphorus addition

Forms of nitrogen uptake, translocation, and transfer via arbuscular mycorrhizal fungi: A review

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