Growth response of Acacia mangium Willd. seedlings to arbuscular mycorrhizal fungi and four isolates of the ectomycorrhizal fungus Pisolithus tinctorius (Pers.) Coker and Couch

Aggangan, Nelly; Moon, Heung-Kyu; Han, Sim Hee

doi:10.1007/s11056-009-9165-4

Cited by 23 publications

(11 citation statements)

References 27 publications

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“…At harvest, shoots were cut 1 cm above the soil surface. Roots were gently pulled up from the pots, washed with tap water, before any dirt and soil was carefully removed using fine-tip forceps (Aggangan et al, 2010). Plant height and root length were measured using a steel ruler.…”

Section: Plant Measurementsmentioning

confidence: 99%

Dark Septate Endophyte Improves Drought Tolerance in Sorghum

Zhang¹,

Gong²,

Yuan³

et al. 2017

IJAB

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Dark septate endophytes (DSE) protect host plants against a variety of environmental stresses, however our knowledge about the roles of DSE in improving drought tolerance of crops is poor. In this study, sorghum (Sorghum bicolor L. Moench) was inoculated with a DSE strain (Exophiala pisciphila GM25) under two different soil water conditions (well-watered (WW), -0.11 MPa; drought-stressed (DS), -0.69 MPa) for one month. At the end of this experiment, sorghum roots were obviously colonized by DSE with 50.5%-62.5% colonization rate. When compared with non-inoculated seedlings under both WW and DS conditions, E. pisciphila-inoculated sorghum had greater plant height, collar diameter, shoot dry weight, net photosynthetic rate (Pn), stomatal conductance (g s ), transpiration rate (E), maximal photochemical efficiency of PSII photochemistry (Fv/Fm) and actual quantum yield (PSII), and lower intercellular CO 2 concentration (Ci). In addition, in comparison to noninoculation under DS conditions, E. pisciphila inoculation also improved the root dry weight, non-photochemical quenching values (NPQ), photochemical quenching values (qP), increased the content of related secondary metabolites including anthocyanin, polyphenol and flavonoid and enhanced the enzymatic activities related to secondary metabolism, such as cinnamyl alcohol dehydrogenase (CAD), phenylalanine ammonia-lyase (PAL), guaiacol peroxidase (G-POD) in sorghum seedlings. Our results demonstrated that the drought resistance of sorghum seedlings were positively improved by E. pisciphila inoculation with better plant growth, gas exchange, photosynthesis, chlorophyll fluorescence, secondary metabolites and enzyme activities related to secondary metabolism. Inoculation with E. pisciphila is an efficient strategy to survive for sorghum in drought environment.

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Section: Plant Measurementsmentioning

confidence: 99%

Dark Septate Endophyte Improves Drought Tolerance in Sorghum

Zhang¹,

Gong²,

Yuan³

et al. 2017

IJAB

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“…These two P use strategies might be caused by differences in P demand by the host plant and its symbiotic microbes. In fact, A. mangium constructs a complex symbiotic system with ecto-and arbuscular-mycorrhiza, rhizobia and mycorrhiza helper bacteria (Aggangan et al 2010). These strategies for nutrient utilisation by A. mangium must be examined closely in terms of physiology in future studies.…”

Section: N and P Dynamics In A Mangium And Nutrient Demandsmentioning

confidence: 99%

Nitrogen and phosphorus retranslocation and N:P ratios of litterfall in three tropical plantations: luxurious N and efficient P use by Acacia mangium

Inagaki

Kamo²,

Miyamoto

et al. 2010

Plant Soil

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Some tropical N 2 -fixing trees exhibit specific characteristics for phosphorus (P) acquisition and utilisation that contrast with the large nitrogen (N) fluxes in their litterfall. To investigate differences in N and P cycling in N 2 -fixing plantations, litterfall and fresh leaf quality of a N 2 -fixing Acacia mangium plantation were compared with that of a non-N 2 -fixing Swietenia macrophylla plantation and a coniferous Araucaria cunninghamii plantation. The N concentration in the A. mangium litterfall was higher than that in the litterfall of the two other species, whereas the P concentration in the A. mangium leaf litterfall was 0.16 mg g -1 , which was only 12-22% of that of the other species. The P concentration in the reproductive parts of A. mangium was markedly higher (16.1 mg g -1 ) than those in the other fractions. The N:P ratio was higher in the leaf fall (81) compared to the fresh leaves (29) of A. mangium, in contrast to the N:P ratios in the leaf samples of the other two species. An analysis of a global litterfall dataset of tropical plantations indicated that N:P ratios in litterfall were significantly higher in N 2 -fixers than in non-N 2 -fixers, and those of A. mangium were high among species in the N 2 -fixer group. These results indicated that A. mangium efficiently retranslocated P in contrast to very large N cycling, under field conditions. These differences may be related to other physiological characteristics of A. mangium.

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“…Colonizações micorrízicas abaixo de 40% mostraram-se ineficazes em promover o crescimento de A. mangium em relação à testemunha não inoculada, apesar de que para outras espécies arbóreas esse nível de colonização seja considerado bom (ZANGARO FILHO et al, 2000). Acacia mangium mostra grande variação na colonização micorrízica (21-78%) em diferentes estudos (MARTIN-LAURENT et al, 1999;FOUNOUNE et al, 2002;GHOSH;VERMA, 2006;AGGANGAN;MOON;HAN, 2010;JEYANNY;RASIDAH, 2011) variando com o solo, fertilização, condição de cultivo e microbiota acompanhante. No presente estudo, onde houve variação apenas da espécie de fungo inoculado, a variação da colonização se deve à fisiologia da relação entre os diferentes FMAs e A. mangium (KOLTAI;KAPULNIK, 2010).…”

Section: Discussionunclassified

“…O incremento com fECTOS raramente chegam a 100% em relação ao controle não inoculado (FOUNOUNE et al, 2002;JAYAKUMAR;TAN, 2005;AGGANGAN;MOON;HAN, 2010). É importante considerar que a formação, manutenção e funcionamento das estruturas fúngicas das ectomicorrizas pode ter um maior gasto de fotossintatos que a dos FMAs.…”

Section: Discussionunclassified

Seleção de fungos micorrízicos arbusculares e ectomicorrízicos para simbioses eficientes com Acacia mangium willd

2013

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ResumoAcacia mangium forma dois tipos de simbiose micorrízica, uma com fungos micorrízicos arbusculares (FMAs) e outra com fungos ectomicorrízicos (fECTOs) . AbstractAcacia mangium forms two kinds of mycorrhizal symbiosis, a arbuscular mycorrhizal fungi (AMFs) type and another with ectomycorrhizal fungi (fECTOs). The present study aimed to select different AMFs species and fECTOs isolates for effective symbiosis with A. mangium, which provide seedlings well colonized, nodulated and developed. Experiments were conducted in a greenhouse at Embrapa Agrobiology, one for AMF species selection and another for fECTOs, using a randomized block design with five replicates. Treatments were species AMFs (Acaulospora laevis, Acaulospora morrowiae, Entrophospora colombiana, Entrophospora contigua, Gigaspora margarita, Glomus clarum, Scutellospora calospora, Scutellospora heterogama, Scutellospora gilmorei and Scutellospora pellucida) or fECTOs isolated (UFSC Pt116; UFSC Pt24; UFSC Pt193; O 64-ITA6; UFSC Pt187 and O 40-ORS 7870). The AMFs species that promoted greater vegetative growth, mycorrhizal colonization and more effective symbioses were S. calospora, S. heterogama, S. gilmorei e A. morrowiae. The fECTOs

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Growth response of Acacia mangium Willd. seedlings to arbuscular mycorrhizal fungi and four isolates of the ectomycorrhizal fungus Pisolithus tinctorius (Pers.) Coker and Couch

Cited by 23 publications

References 27 publications

Dark Septate Endophyte Improves Drought Tolerance in Sorghum

Dark Septate Endophyte Improves Drought Tolerance in Sorghum

Nitrogen and phosphorus retranslocation and N:P ratios of litterfall in three tropical plantations: luxurious N and efficient P use by Acacia mangium

Seleção de fungos micorrízicos arbusculares e ectomicorrízicos para simbioses eficientes com Acacia mangium willd

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