scholarly journals Mycorrhizal Inoculation Enhances Growth and Development of Micropropagated Plants of Avocado

HortScience ◽  
1992 ◽  
Vol 27 (7) ◽  
pp. 785-787 ◽  
Author(s):  
M.T. Vidal ◽  
C. Azcón-Aguilar ◽  
J.M. Barea ◽  
F. Pliego-Alfaro
Keyword(s):  
Growth And Development ◽  
Mycorrhizal Fungus ◽  
Arbuscular Mycorrhizal ◽  
Persea Americana ◽  
Potting Medium ◽  
Mycorrhiza Formation ◽  
Key Factor ◽  
Micropropagated Plants ◽  
Mycorrhizal Inoculation ◽  
Axenic Conditions

Micropropagated plantlets of avocado (Persea americana Mill.) exhibit a very slow rate of growth during the acclimatization phase, possibly because mycorrhizae are absent. Inoculation of plantlets with the vesicular-arbuscular mycorrhizal fungus Glomus fasciculatum (Thaxter sensu Gerd) Gerd and Trappe improved formation of a well-developed root system that was converted into a mycorrhizal system. Introduction of the mycorrhizal fungus at the time plantlets were transferred from axenic conditions to ex vitro conditions improved shoot and root growth; enhanced the shoot: root ratio; increased the concentration and/or content of N, P, and K in plant tissues; and helped plants to tolerate environmental stress at transplanting. Inclusion of soil as a component of the potting medium appeared to favor mycorrhiza formation and effectiveness. Thus, mycorrhiza formation seems to be the key factor for subsequent growth and development of micropropagated plants of avocado.

Hyphal growth and mycorrhiza formation by the arbuscular mycorrhizal fungus Glomus claroideum BEG 23 is stimulated by humic substances

Mycorrhiza ◽  
2005 ◽  
Vol 15 (7) ◽  
pp. 483-488 ◽  
Author(s):  
M. Gryndler ◽  
H. Hršelová ◽  
R. Sudová ◽  
H. Gryndlerová ◽  
V. Řezáčová ◽  
...  
Keyword(s):  
Humic Substances ◽  
Arbuscular Mycorrhizal Fungus ◽  
Mycorrhizal Fungus ◽  
Arbuscular Mycorrhizal ◽  
Hyphal Growth ◽  
Mycorrhiza Formation

The Roles of Arbuscular Mycorrhizal Fungus Glomus mosseae and Festuca arundinacea in Phytostabilization of Lead/Zinc Tailings

2013 ◽  
Vol 699 ◽  
pp. 245-250 ◽  
Author(s):  
Hai Hong Gu ◽  
Fu Ping Li ◽  
Qiang Yu ◽  
Yu Qian Gao ◽  
Xue Tao Yuan
Keyword(s):  
Festuca Arundinacea ◽  
Glomus Mosseae ◽  
Arbuscular Mycorrhizal Fungus ◽  
Mycorrhizal Fungus ◽  
Translocation Factor ◽  
Arbuscular Mycorrhizal ◽  
Northern China ◽  
Lead Zinc ◽  
Mycorrhizal Inoculation ◽  
Cd Translocation

A greenhouse experiment was conducted to investigate the effects of the arbuscular mycorrhizal fungus Glomus mosseae on growth, metal accumulation and translocation of Festuca arundinacea for the phytostabilization of lead/zinc tailings in this study. The results showed that mycorrhizal inoculation substantially enhanced the growth of F. arundinacea and significantly decreased Pb and Cd concentrations in shoots. The bioconcentration factor and translocation factor values of Pb, Zn, Cu and Cd of F. arundinacea were much lower than 1, and inoculation further inhibited Pb, Cu and Cd translocation from roots into shoots, while enhanced Zn translocation. These results suggested that F. arundinacea inoculated with mycorrhizal might be a potential measure for revegetation of Pb/Zn tailings, especial for Pb, Cu and Cd stabilization, in northern China.

Potential Use of Sedum Spectabile Inoculated with Glomus Mosseae in Phytostabilization of Lead/Zinc Tailings

2013 ◽  
Vol 295-298 ◽  
pp. 1543-1546
Author(s):  
Hai Hong Gu ◽  
Fu Ping Li ◽  
Yong Li Xu ◽  
Qiang Yu ◽  
Yu Qian Gao ◽  
...  
Keyword(s):  
Glomus Mosseae ◽  
Bioconcentration Factor ◽  
Mycorrhizal Fungus ◽  
Translocation Factor ◽  
Arbuscular Mycorrhizal ◽  
Northern China ◽  
Zn Concentration ◽  
Lead Zinc ◽  
Mycorrhizal Inoculation ◽  
Potential Use

The effects of the arbuscular mycorrhizal fungus Glomus mosseae on growth, metal uptake and translocation of Sedum spectabile for phytostabilization of lead/zinc tailings were investigated by a greenhouse experiment in this study. The results showed that mycorrhizal inoculation significantly improved biomass of S. spectabile. The Pb, Cu and Cd concentrations in roots were higher than those in shoots both with and without mycorrhizas, while Zn concentration was higher in shoots than that in roots. In addition, it was found that most of the values of bioconcentration factor and translocation factor of tested metals were much lower than 1, except the translocation factor values of Zn were about 3, and inoculation further significantly reduced translocation factor values of Pb and Cu. These results suggested that S. spectabile inoculated with mycorrhizal might be a potential approach to revegetation of Pb/Zn tailings in northern China.

In vivo studies on the nuclear behavior of the arbuscular mycorrhizal fungus Gigaspora rosea grown under axenic conditions

PROTOPLASMA ◽  
1998 ◽  
Vol 203 (1-2) ◽  
pp. 1-15 ◽  
Author(s):  
B. Bago ◽  
W. Zipfel ◽  
R. M. Williams ◽  
H. Chamberland ◽  
J. G. Lafontaine ◽  
...  
Keyword(s):  
Arbuscular Mycorrhizal Fungus ◽  
Mycorrhizal Fungus ◽  
Arbuscular Mycorrhizal ◽  
In Vivo Studies ◽  
Gigaspora Rosea ◽  
Nuclear Behavior ◽  
Axenic Conditions

scholarly journals Contribution of arbuscular mycorrhizas to biological protection of micropropagated pineapple (Ananas comosus (L.) Merr) against Phytophthora cinnamomi Rands

1994 ◽  
Vol 3 (3) ◽  
pp. 241-251 ◽  
Author(s):  
Jean-Philippe Guillemin ◽  
Silvio Gianinazzi ◽  
Vivienne Gianinazzi-Pearson ◽  
Jean Marchal
Keyword(s):  
Phytophthora Cinnamomi ◽  
Mycorrhizal Fungus ◽  
Arbuscular Mycorrhizal ◽  
Arbuscular Mycorrhizas ◽  
Fruit Production ◽  
Ananas Comosus ◽  
Root Shoot Ratio ◽  
Mycorrhizal Plants ◽  
Biological Protection ◽  
Axenic Conditions

Phytophthora cinnamomi Rands causes root rot of pineapple (Ananas comosus (L.) Merr.) and the development of this disease is harmful for fruit production. Micropropagated plants of two varieties, Queen Tahiti and Smooth Cayenne (clone CYO), were inoculated at transplanting from axenic conditions with an arbuscular mycorrhizal fungus to evaluate the importance of endomycorrhiza development for biological protection against P. cinnamomi. Growth and mineral nutrition of endomycorrhizal plants were not affected by different inoculum levels of P. cinnamomi, whilst they were reduced for non-mycorrhizal plants. Root/shoot ratio of endomycorrhizal plants was lower than that of non-mycorrhizal plants, and the pathogen did not modify this effect except at highest inoculum levels of P. cinnamomi. Endomycorrhizal colonization was not altered by the pathogen; however symbiotic functioning was reduced by the highest concentration of inoculum of P. cinnamomi. Endomycorrhization is an interesting biotechnology for the production of micropropagated pineapple.

scholarly journals Effect of AM fungus (Glomus macrocarpum) with additional phosphate fertilization on biomass yield nutrient uptake in two Basellaceae plants; Basella alba L. and Basella cordifolia L.

2017 ◽  
Vol 6 (03) ◽  
pp. 1590
Author(s):  
Kamble S. S. ◽  
Lakshman H. C.*
Keyword(s):  
Nutrient Uptake ◽  
Rock Phosphate ◽  
Mycorrhizal Fungus ◽  
Arbuscular Mycorrhizal ◽  
Fungal Colonization ◽  
Glomus Macrocarpum ◽  
Basella Alba ◽  
Mycorrhizal Inoculation ◽  
Mycorrhizal Plants ◽  
Phosphate Treatment

Inoculation of AMF (Arbuscular mycorrhizal fungus) (Glomus macrocarpum (AMF) with additional, super phosphate and rock phosphate treatment showed varied results on Basella alba and Basella cordifolia. At 30 days interval experimental plants have not exhibited any better growth or nutrient uptake in mycorrhizal plants nor non-mycorrhization plants. However, both the plants significantly showed higher growth, biomass production nutrients uptake in both shoot and root of mycorrhizal plants over non-mycorrhizal plants. When the plants of Basella alba treated with 3.0 mg rock phosphate / kg soil, with mycorrhizal inoculation. But, Basella cordifolia showed plants treated with 1.0 mg super phosphate /kg soil with mycorrhizal inoculation improved plant growth biomass. On contrast to this per cent of AM fungal colonization and spore number decreased with the increased dosage of Super phosphate than those received rock phosphate.

scholarly journals Co-inoculation with an arbuscular mycorrhizal fungus and a phosphate-solubilizing fungus promotes the plant growth and phosphate uptake of avocado plantlets in a nursery

Botany ◽  
2017 ◽  
Vol 95 (5) ◽  
pp. 539-545 ◽  
Author(s):  
Alvaro Tamayo-Velez ◽  
Nelson Walter Osorio
Keyword(s):  
Plant Growth ◽  
Phosphate Uptake ◽  
Arbuscular Mycorrhizal Fungus ◽  
Mycorrhizal Fungus ◽  
Arbuscular Mycorrhizal ◽  
Dry Mass ◽  
Persea Americana ◽  
Plant Performance ◽  
Uninoculated Control ◽  
Phosphate Solubilizing

An experiment was conducted to evaluate the individual and combined effects of treatment with the phosphate solubilizing fungus Mortierella sp. and the arbuscular mycorrhizal fungus Rhizoglomus fasciculatum on the plant growth and phosphate uptake on plantlets of avocado (Persea americana Mill. cv. ‘Hass’) grown in a nursery. A completely randomized test design was used. Treatments consisted of individual and combined inoculations with R. fasciculatum and Mortierella sp. at two concentrations (106and 108CFU·mL−1), and the results were compared with an uninoculated control. The plant height, shoot dry mass, and shoot phosphate uptake were significantly higher in plants inoculated with both of the fungi than with either fungus individually, or in the uninoculated control plants. The colonization of fine roots with both fungi decreased when they were co-inoculated by comparison with when they were individually inoculated, which suggests that these fungi compete for root space. Despite this competition, the dual inoculation showed that the fungi had additive effects on plant performance. Thus, shoot phosphate levels in plantlets inoculated with mycorrhizae was significantly higher when Mortierella sp. was co-inoculated at both concentrations, compared with the single inoculations and the uninoculated control plants (mycorrhiza free).

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