scholarly journals Spatial Effects and GWA Mapping of Root Colonization Assessed in the Interaction Between the Rice Diversity Panel 1 and an Arbuscular Mycorrhizal Fungus

2019 ◽  
Vol 10 ◽  
Author(s):  
Hazel Davidson ◽  
Roshi Shrestha ◽  
Thomas Cornulier ◽  
Alex Douglas ◽  
Tony Travis ◽  
...  
Keyword(s):  
Root Colonization ◽  
Arbuscular Mycorrhizal Fungus ◽  
Mycorrhizal Fungus ◽  
Arbuscular Mycorrhizal ◽  
Spatial Effects ◽  
Diversity Panel ◽  
Rice Diversity

scholarly journals Mycorrhizal Colonization in Atriplex nummularia Lind. Subjected to Desalinizador Reject

2019 ◽  
pp. 1-6
Author(s):  
C. F. De Melo ◽  
E. W. F. Gomes ◽  
A. S. Messias
Keyword(s):  
Nutrient Solution ◽  
Root Colonization ◽  
Arbuscular Mycorrhizal Fungus ◽  
Mycorrhizal Fungus ◽  
Arbuscular Mycorrhizal ◽  
Mycorrhizal Colonization ◽  
Atriplex Nummularia ◽  
Negative Effect ◽  
Presence And Absence ◽  
Complete Nutrient Solution

This work has the objective of evaluating the mycorrhizal colonization of Arbuscular Mycorrhizal Fungus - AMF Claroideoglomus etunicatum in Atriplex nummularia Lind. subjected to desalinator reject. The experiment was conducted in a greenhouse at the headquarters of Agronomic Institute of Pernambuco - IPA, Recife, Pernambuco, Brazil. The experimental design was randomized blocks with the treatments constituted in a factorial scheme of five levels of salinity in AC= 2.86 mS/cm; T1= 11.54 mS/cm; T2= 12.04 mS/cm; T3= 13.13 mS/cm and T4= 14.16 mS/cm, associated with the presence and absence of fungus, presence and absence of nutrient solution, and autoclaved and non-autoclaved soil. 8.0 g of Hoagland & Arnon complete nutrient solution was added every fortnight. After five months, the roots of the treatments were collected and the root colonization was evaluated. It was found that in all treatments the association between Claroiodeoglomus etunicatum and Atriplex nummularia was beneficial. The correlation was positive for the treatment T4 (Reject + 14 gNaCl) + AMF. Thus, it was observed that salinity had no negative effect on the association as well as on the growth of the vegetable.

scholarly journals Micropropagated Banana Infected with Meloidogyne javanica Responds to Glomus intraradices and Phosphorus

HortScience ◽  
1997 ◽  
Vol 32 (1) ◽  
pp. 101-103 ◽  
Author(s):  
Jorge Pinochet ◽  
Carolina Fernández ◽  
María de Carmen Jaizme ◽  
Pedro Tenoury
Keyword(s):  
Glomus Intraradices ◽  
Root Colonization ◽  
Arbuscular Mycorrhizal Fungus ◽  
Mycorrhizal Fungus ◽  
Arbuscular Mycorrhizal ◽  
Meloidogyne Javanica ◽  
Root Knot Nematode ◽  
Growth And Nutrition ◽  
Vesicular Arbuscular ◽  
Low Potassium

The effects of the interaction between the vesicular-arbuscular mycorrhizal fungus Glomus intraradices Schenk and Smith and the root-knot nematode Meloidogyne javanica (Treub) Chitwood on growth and nutrition of micropropagated `Grand Naine' banana (Musa AAA) were studied under greenhouse conditions. Inoculation with G. intraradices significantly increased growth of plants in relation to nonmycorrhizal plants and was more effective than P fertilization in promoting plant development. Mycorrhizal colonization did not affect nematode buildup in the roots, although plants with the nematode and mycorrhiza were more galled. Meloidogyne javanica had no effect on the percentage of root colonization in mycorrhiza-inoculated plants. No element deficiency was detected by foliar analysis. All elements were within sufficiency levels for banana with exception of N, which was low. Potassium levels were lower in mycorrhizal plants, while Ca and Mg levels were higher with mycorrhiza than without, with or without the nematode. Early inoculation with G. intraradices appears to favor growth of banana plants by enhancing plant nutrition.

scholarly journals Enhanced Rooting of Kinnikinnick Cuttings using Mycorrhizal Fungi in Rooting Substrate

2004 ◽  
Vol 14 (3) ◽  
pp. 355-363 ◽  
Author(s):  
C.F. Scagel
Keyword(s):  
Mycorrhizal Fungi ◽  
Root Colonization ◽  
Arbuscular Mycorrhizal Fungus ◽  
Mycorrhizal Fungus ◽  
Arbuscular Mycorrhizal ◽  
Root Initiation ◽  
Cutting Propagation ◽  
Different Types ◽  
Rooting Of Cuttings ◽  
Bottom Heat

Hardwood cuttings of kinnikinnick (Arctostaphylos uva-ursi `Massachusetts') were inoculated with three different types of inoculum of mycorrhizal fungi to determine whether addition of mycorrhizal inoculum into the rooting substrate during cutting propagation increases rooting or root growth, or alters the time for rooting. Cuttings, treated or untreated with rooting hormone prior to sticking into the rooting substrate, were inoculated with either inoculum of an arbuscular mycorrhizal fungus (AMF), hyphal inoculum of an arbutoid mycorrhizal fungus (E), or inoculum consisting of colonized root fragments of kinnikinnick (R). Cuttings were placed under mist in a greenhouse with no bottom heat and harvested 35, 56, and 84 days after sticking. Using AMF inoculum in the rooting substrate did not enhance rooting of cuttings, while adding the R or E inoculum to the rooting substrate increased root initiation compared to non-inoculated cuttings. Cuttings inoculated with either the R or E inoculum had greater root initiation than non-inoculated cuttings 56 and 84 days after sticking. When treated with rooting hormone, cuttings inoculated with the E or R inoculum had longer roots and a greater root biomass than non-inoculated cuttings. Mycorrhizal colonization of roots was similar or greater when cuttings were inoculated with the E inoculum than with the R inoculum and application of rooting hormone generally increased root colonization. The use of inoculum composed of root fragments from kinnikinnick during cutting propagation does not appear to be more beneficial than use of hyphal inoculum from a known arbutoid mycorrhizal fungus.

Regulatory mechanisms during the plant – arbuscular mycorrhizal fungus interaction

2004 ◽  
Vol 82 (8) ◽  
pp. 1166-1176 ◽  
Author(s):  
Horst Vierheilig
Keyword(s):  
Mycorrhizal Fungi ◽  
Root Colonization ◽  
Arbuscular Mycorrhizal Fungus ◽  
Mycorrhizal Fungus ◽  
Arbuscular Mycorrhizal ◽  
Physical Contact ◽  
Mycorrhizal Symbiosis ◽  
Plant Responses ◽  
Regulatory Processes ◽  
Mycorrhizal Association

Abundant data are available on some aspects of the arbuscular mycorrhizal symbiosis, for example, plant nutrition, but because of difficulties immanent to arbuscular mycorrhizal fungi, such as the inability to culture them axenically, the relatively long time it takes to achieve root colonization, and the simultaneous presence of different morphologic stages of the fungus in the root, less information is accumulated on other aspects such as the regulation of mycorrhization. Regulatory processes in the plant – arbuscular mycorrhizal fungus interaction start before root colonization by the fungus and even before a direct physical contact between the host and the fungal symbiont. Some of the signals exchanged are still a matter of debate and will be discussed further on. After the penetration of the root by the fungus, depending on the developmental stage of the arbuscular mycorrhizal association (e.g., early or mature), a range of plant responses is activated. The possible function of several plant responses in the regulation of mycorrhization is discussed.Key words: arbuscular mycorrhiza, Glomales, autoregulation, flavonoid, recognition, root exudates.

RiPEIP1, a gene from the arbuscular mycorrhizal fungus Rhizophagus irregularis, is preferentially expressed in planta and may be involved in root colonization

Mycorrhiza ◽  
2016 ◽  
Vol 26 (6) ◽  
pp. 609-621 ◽  
Author(s):  
Valentina Fiorilli ◽  
Simone Belmondo ◽  
Hassine Radhouane Khouja ◽  
Simona Abbà ◽  
Antonella Faccio ◽  
...  
Keyword(s):  
Root Colonization ◽  
Arbuscular Mycorrhizal Fungus ◽  
Mycorrhizal Fungus ◽  
Arbuscular Mycorrhizal ◽  
Rhizophagus Irregularis ◽  
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