scholarly journals Fungos micorrízicos arbusculares de três espécies perenes de um Sistema Agroflorestal em Manaus (AM)

2021 ◽  
Vol 12 (2) ◽  
pp. 148-157
Author(s):  
Lucas Henrique Oliveira ◽  
Francisco Wesen Moreira ◽  
Iokanam Sales Pereira ◽  
Nailson Celso da Silva Nina ◽  
Luiz Antonio de Oliveira
Keyword(s):  
Glomus Spp

Os fungos micorrízicos arbusculares (FMAs) são seres simbiontes de solo que exercem um papel significativo na funcionalidade e manutenção dos ecossistemas naturais manejados e principalmente degradados. O presente estudo objetivou avaliar a ocorrência de FMAs na rizosfera de Andirobeira, Sapoteira do Solimões e Cupuaçuzeiro presentes em um Sistema Agroflorestal, sendo avaliados em quatro meses (março, junho, setembro e dezembro) de 2018. O esquema fatorial 3x4 foi usado e as médias dos tratamentos foram comparadas pelo teste de Tukey. A ANOVA de medidas repetitivas demonstrou que há efeito do tempo (F (3,12) =3.776; p- valor= 0.019) e da interação entre tempo e espécie (F(6,36) =3.918; p-valor= 0.004) na densidade de esporos. Verificou-se que as rizosferas da Sapoteira do Solimões e da Andirobeira apresentaram as maiores médias de densidade de esporos (76,2 e 70,4 esporos.50 g de solo-1), no mês de março encontrou-se uma amostra com 97 esporos.50 g de solo-1, sendo a maior encontrada. As maiores taxas de colonização micorrízica (%) foram observadas nas rizosferas da Sapoteira do Solimões e da Andirobeira, as quais diferiram estatisticamente do Cupuaçuzeiro, não havendo diferença estatística entre os meses de coleta. O gênero Glomus spp. foi dominante nas rizosferas das plantas (43,1 %), sendo o menos abundante o Gigaspora spp. (10,04 %).  

Vesicular–arbuscular endomycorrhizal associations of some desert plants of Baja California

1981 ◽  
Vol 59 (6) ◽  
pp. 1056-1060 ◽  
Author(s):  
Sharon L. Rose
Keyword(s):  
Mycorrhizal Fungi ◽  
Sonoran Desert ◽  
Baja California ◽  
Fungal Spores ◽  
Desert Plants ◽  
Endemic Plants ◽  
Mycorrhizal Associations ◽  
Glomus Spp ◽  
Vesicular Arbuscular ◽  
Va Mycorrhizal Fungi

Endemic plants of the Sonoran Desert of Baja California were sampled for mycorrhizal associations. Eight of the 10 plant species examined were colonized by vesicular–arbuscular (VA) mycorrhizal fungi. Soil sievings revealed chlamydospores of three VA mycorrhizal Glomus spp.; G. microcarpus, G. fasciculatus, and G. macrocarpus. At the time of sampling, the populations of VA fungal spores in the soil were low, with one to five chlamydospores per 100 g soil sample.

Axenic culture and encapsulation of the intraradical forms of Glomus spp.

1991 ◽  
Vol 7 (3) ◽  
pp. 292-297 ◽  
Author(s):  
D. -G. Strullu ◽  
C. Romand ◽  
C. Plenchette
Keyword(s):  
Axenic Culture ◽  
Glomus Spp

scholarly journals Non-Synergistic Effect of Trichoderma harzianum and Glomus spp. in Reducing Infection of Fusarium Wilt in Banana

Pathogens ◽  
2019 ◽  
Vol 8 (2) ◽  
pp. 43 ◽  
Author(s):  
Arfe Castillo ◽  
Cecirly Puig ◽  
Christian Cumagun
Keyword(s):  
Biological Control ◽  
Synergistic Effect ◽  
Fusarium Oxysporum ◽  
Fusarium Wilt ◽  
Trichoderma Harzianum ◽  
Root Weight ◽  
Biological Control Agents ◽  
Competitive Effects ◽  
Glomus Spp ◽  
Race 4

Philippine banana is currently threatened by Fusarium oxysporum f. sp. cubense Tropical Race 4 (FocR4). This study investigated the use of Trichoderma harzianum pre-treated with Glomus spp, as a means of managing Fusarium wilt on young ‘Lakatan’ banana seedlings. Results showed that Glomus applied basally significantly improved banana seedling growth with increased increment in plant height and pseudostem diameter and heavier root weight. The application of Glomus spp. alone offered 100% protection to the ‘Lakatan’ seedlings against FocR4 as indicated by the absence of the wilting symptom. A combination of T. harzianum and Glomus spp. also gave significant effect against Fusarium wilt through delayed disease progression in the seedlings but was not synergistic. Competitive effects were suspected when application of the two biological control agents on banana roots was done simultaneously.

scholarly journals Mycorrhizal synthesis in vitro between Glomus spp. and artificial seeds of alfalfa

1989 ◽  
Vol 113 (4) ◽  
pp. 545-548 ◽  
Author(s):  
D. G. STRULLU ◽  
C. ROMAND ◽  
P. CALLAC ◽  
E. TEOULE ◽  
Y. DEMARLY
Keyword(s):  
Artificial Seeds ◽  
Mycorrhizal Synthesis ◽  
Glomus Spp

scholarly journals Real-case application of mycorrhizal inoculums on Capsicum annuum L. var. longum cv. Szegedi and Kalocsai

2013 ◽  
Vol 19 (1-2) ◽  
Author(s):  
I. Hernádi ◽  
K. Posta
Keyword(s):  
Mycorrhizal Fungi ◽  
Crop Production ◽  
Arbuscular Mycorrhizal ◽  
Fresh Weight ◽  
Vegetative Development ◽  
Hyphal Length ◽  
Glomus Spp ◽  
Mycorrhizal Inoculation ◽  
Case Application ◽  
Positive Effect

The aim of this study was to test the use of commercially available arbuscular mycorrhiza (AM) inoculant Symbivit, a mixture of six species of Glomus spp., in spice pepper field cultivation. The inoculants containing arbuscular mycorrhizal fungi (AMF) was able to establish a symbiosis in the rhizosphere of pepper plants and mycorrhizal inoculation increased fresh and dry weights of shoots of spice pepper cv. Szegedi and only fresh weight of Kalocsai type. There were no significant differences in the root weights due to treatment only in fresh weight of Kalocsai pepper type. Treated plants of both variants exhibited an increase in cumulative crop production compared with control non-treated plants and the growth response of pepper was higher for var. Szegedi than var. Kalocsai. Mycorrhizal inoculation had a great positive effect on external hyphal length of AMF also showing differences in that between Kalocsai and Szegedi variants. The root colonization showed seasonality by treated and non-treated plants. The lowest degree of colonization was observed in June in general and colonization percent increased during vegetative development and there was a slight decrease at harvesting. In conclusion, it can be stated that inoculation with Symbivit containing mycorrhizal fungi could be an integral part of spice pepper production.

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