Nodulation and growth of black locust (Robinia pseudoacacia) on a desurfaced soil inoculated with a local Rhizobium isolate

Ferrari, Alejandro E.; Wall, Luis Gabriel

doi:10.1007/s00374-006-0125-2

Cited by 22 publications

(13 citation statements)

References 15 publications

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“…The ability of legumes to form root nodules with rhizobia and fix atmospheric dinitrogen make them important components of a restoration plan (Jefferies et al 1981; Graham 2005). In restoration‐related studies worldwide, investigators find strong benefits to inoculating legumes with appropriate rhizobia strains (Jha et al 1995; Rodriguez‐Echeverría & Pérez‐Fernández 2005; Thrall et al 2005; Ferrari & Wall 2007). Inoculation can increase the chance of forming successful root associations, leading to better establishment and improved functioning.…”

Section: Discussionmentioning

confidence: 99%

The Effects of Flavonoid Allelochemicals from Knapweeds on Legume–Rhizobia Candidates for Restoration

Alford

Vivanco

Paschke

2009

Restoration Ecology

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Russian knapweed (Acroptilon repens) and Spotted knapweed (Centaurea maculosa) are allelopathic weeds invasive in North American grasslands. Both species contain at least one phytotoxic flavonoid root exudate with demonstrated negative influences on other plants. Previous findings indicated that Silky lupine (Lupinus sericeus), among other legumes, was relatively resistant to Spotted knapweed invasion and allelochemistry. We hypothesized that legume species may exhibit resistance to flavonoids in knapweed root exudates and may serve as candidate species for management efforts. Because legumes form symbiotic relationships with rhizobia, these bacteria must also be evaluated for allelochemical resistance before legumes can be recommended for restoration. In this study, we examined four legume species for effects of 7,8-benzoflavone (from Russian knapweed) and (±)-catechin (from Spotted knapweed) on rhizosphere interactions involving legume roots and associated rhizobia. Pure cultures of four rhizobia strains exhibited varied responses when grown with 7,8-benzoflavone or (±)-catechin. Alfalfa (Medicago sativa) and its bacterial symbiont, Sinorhizobium meliloti, exhibited allelochemical resistance that varied with (±)-catechin concentration when grown in vitro. Four legume species were grown under greenhouse conditions. Plants that were inoculated and nodulated generally exhibited no response to 7,8-benzoflavone or (±)-catechin treatments. Plants that were not inoculated exhibited stronger responses. Therefore, inoculation and nodulation may confer resistance to allelochemicals. These results, when coupled with previous research and field observations, suggest that legumes may not be susceptible to knapweed allelopathy and may be good choices in restoration of knapweed infestations when inoculated, particularly on sites with low soil nitrogen.

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Section: Discussionmentioning

confidence: 99%

The Effects of Flavonoid Allelochemicals from Knapweeds on Legume–Rhizobia Candidates for Restoration

Alford

Vivanco

Paschke

2009

Restoration Ecology

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“…The importance of the Rhizobia association for the ability of the species to overcome unfavorable soil conditions (Ferrari & Wall 2007) and soil water limitations (Wurzburger & Minat 2014) is remarkable for black locust as a pioneer tree (Boring & Swank 1984). However, the physiological efficiency of the association is influenced by the Rhizobia spp.…”

Section: Introductionmentioning

confidence: 99%

Carbon allocation, nodulation, and biological nitrogen fixation of black locust (Robinia pseudoacacia L.) under soil water limitation

et al. 2015

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. Carbon allocation, nodulation, and biological nitrogen fixation of black locust (Robinia pseudoacacia L.) under soil water limitation. Ann. For. Res. 58(2): 259-274.Abstract. The pioneer tree black locust (Robinia pseudoacacia L.) is a drought-resistant tree and, in symbiosis with Rhizobium, able to fix dinitrogen from the atmosphere. It is, therefore, an interesting species for marginal lands where soil amelioration is sought in addition to economic gain. However, the interaction between soil water availability, carbon allocation and nitrogen fixation is important for a successful establishment of trees on marginal lands and has not yet been investigated for black locust. Twoyear-old trees were grown under various soil water conditions and drought cycles. The stable isotopic composition of C (δ 13 C) and N (δ 15 N) of the leaves was used to identify i) the effective drought condition of the treatments and ii) the portion N accrued from the atmosphere by the biological nitrogen fixation. Drought-stressed plants significantly reduced their total aboveground biomass production, which was linearly linked to tree transpiration. The shoot:root ratio values changed from 2.2 for the drought-stressed to 4.3 for the well-watered plants. Our investigation shows that drought stress increases the nodule biomass of black locust in order to maintain biological nitrogen fixation and to counteract the lower soil nitrogen availability. The biological nitrogen fixation of drought-stressed trees could be maintained at relatively higher values compared to the well-watered trees. The average leaf nitrogen content varied between 2.8% and 3.0% and was not influenced by the drought stress. Carbon fixation, carbon allocation, and biological nitrogen fixation are to some extent balanced at low irrigation and allow Robinia to cope with long-term water constraints. The combination of black locust's ecophysiological and morphological plasticity make it interesting as a biomass source for bioenergy and timber production, even in nutrient-limited and drought-affected areas of Europe.

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“…Seeds were germinated in the growth chamber with 28 • C temperature and 60%-90% relative humidity. Photoperiod of 16 h light and 8 h darkness was maintained by using 400 W lamps [17]. After two weeks of germination, seedlings were transplanted into pots containing experimental soil, and all the pots were kept in the green house.…”

Section: Seed Germination and Transplantation Of Plantmentioning

confidence: 99%

“…Suspensions of bacteria were diluted to make an optical density of 0.15 (λ = 500 nm), which resembled to a concentration of 3 × 10 8 bacteria/mL, measured by the Bradford method [20]. After preparation of inoculum suspension, soybean and shrub lespedeza were inoculated after 8 days and 15 days of germination, respectively, by pouring 2 mL of the rhizobia suspension directly onto the base of the root [17]. The first strain (KACC No: 10996) was used for inoculating soybean, and the second strain (KACC No: 11052) was used for inoculating shrub lespedeza in treatment T 2 and T 3 .…”

Section: Bacterial Inoculation Proceduresmentioning

confidence: 99%

Evaluating the Effect of Bacterial Inoculation and Fertilization on the Soil Nutrient Status of Coal Mine Soil by Growing Soybean (Glycine max) and Shrub Lespedeza (Lespedeza bicolor)

2018

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Revegetation with fast-growing N-fixing leguminous plants can be an alternate for reclamation of degraded coal mining areas. Selection of appropriate plant species is an important factor in deciding the success in the remediation of mine spoil. Thus, this study was carried out in greenhouse conditions to evaluate the effect of two N-fixing leguminous plant seedlings, soybean (Glycine max) and shrub lespedeza (Lespedeza bicolor), on the available N and other soil nutrients (P, K, Ca, and Mg) of the experimental coal mine soil. Four treatments, including T0—non-fertilized non-inoculation (control), T1—fertilization, T2—bacterial inoculation, and T3—combination of fertilization and bacterial inoculation with three replications were applied to both plants. Concentration of NH4+-N and NO3−-N increased significantly in the soil at different treatments for both soybean and shrub lespedeza, as compared to control, but apart from control no significant difference was observed between other treatments of increased NH4+-N for soybean and increased NO3−-N for shrub lespedeza. The highest number of nodules and dry weight of nodule per plant (g) was recorded 5.73 and 1.8, respectively in soybean, and 7.77 and 2.76, respectively, in shrub lespedeza with bacteria-inoculated treatment (T2), whereas fertilized treatment (T1) produced the lowest number of nodule and dry weight of nodule in both plants. Increasing of available P and K was significantly high when NPK fertilizer was applied to the plants but decreased at other treatments. Therefore, it can be concluded that soybean and shrub lespedeza have a significant role in changing soil nutrient status in coal mining soil through fertilizer application and biological N fixation.

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Nodulation and growth of black locust (Robinia pseudoacacia) on a desurfaced soil inoculated with a local Rhizobium isolate

Cited by 22 publications

References 15 publications

The Effects of Flavonoid Allelochemicals from Knapweeds on Legume–Rhizobia Candidates for Restoration

The Effects of Flavonoid Allelochemicals from Knapweeds on Legume–Rhizobia Candidates for Restoration

Carbon allocation, nodulation, and biological nitrogen fixation of black locust (Robinia pseudoacacia L.) under soil water limitation

Evaluating the Effect of Bacterial Inoculation and Fertilization on the Soil Nutrient Status of Coal Mine Soil by Growing Soybean (Glycine max) and Shrub Lespedeza (Lespedeza bicolor)

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