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Biggs, I. M.; Stewart, George R.; Wilson, John R.; Critchley, Christa

doi:10.1023/a:1014280420779

Cited by 40 publications

(11 citation statements)

References 23 publications

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“…Then, using natural 15N abundance techniques, the possible contribution of fixed N by endophytes to plant N accumulation in fields was found to be significant in sugarcane in Brazil (Yoneyama et al 1997;Boddey et al 2001), the Philippines and Miyako Island, Japan (Yoneyama et al 1997) as well as in pineapple (Ananas comosus [L.] Merr.) in Thailand (Ando et al 2000), but was not found to be significant in sugarcane in Australia (Biggs et al 2002).…”

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confidence: 75%

Detection ofnifHSequences in Sugarcane (Saccharum officinarumL.) and Pineapple (Ananas comosus[L.] Merr.)

Ando

Goto

Meunchang³

et al. 2005

Soil Science and Plant Nutrition

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To detect N2‐fixing bacteria in a plant without using culture methods, nifH gene segments were amplified with degenerate primers from DNA extracted from stems of sugarcane (Saccharum officinarum L.) and leaves of pineapple (Ananas comosus [L.] Merr.). Sequences of the nifH clones were homologous to those of bacteria in the genera Bradyrhizobium, Serratia, and Klebsiella. The bacteria with nifH sequences homologous to those of the three genera may be promising candidates for predominant endophytic diazotrophs in sugarcane and pineapple, because these sequences were commonly detected in samples from different host plants, which were collected at different locations. On the other hand, no nifH sequence related to Gluconacetobacter diazotrophicus, which is an endophytic N2‐fixing bacterium and had been previously isolated from sugarcane, was detected in sugarcane. This indicates the absence or the presence of few G. diazotrophicus in the stems of the sugarcane plants used in the current study.

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confidence: 75%

Detection ofnifHSequences in Sugarcane (Saccharum officinarumL.) and Pineapple (Ananas comosus[L.] Merr.)

Ando

Goto

Meunchang³

et al. 2005

Soil Science and Plant Nutrition

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“…However, Cantarella et al [121] did not find positive results of inoculation in a comprehensive 13-site-years study in São Paulo. Evidence of BNF was also not observed for sugarcane in Australia [122] or South Africa [123]. More recent evidence has shown that the benefits may be associated with the production of plant-growth promoting substances rather than BNF [120,124,125].…”

Section: Improvements In Sugarcane Nitrogen Fertilization: Recent Devmentioning

confidence: 95%

Nitrogen Use Efficiency for Sugarcane-Biofuel Production: What Is Next?

Otto

Castro

Mariano³

et al. 2016

Bioenerg. Res.

117

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Land area devoted to sugarcane (Saccharum spp.) production in Brazil has increased from 2 million to 10 million ha over the past four decades. Studies have shown that, from an environmental perspective, the transformation of nitrogen (N) fertilizers into N 2 O gases can offset the advantages gained by replacing fossil fuels with biofuels. Our objectives here were to review recent developments in N management for sugarcane-biofuel production and assess estimates of N use efficiency (NUE) and N losses based on future scenarios, as well as for life-cycle assessments of bioenergy production. Approximately 60 % of N-based fertilizer applied to sugarcane fields in Brazil is recovered by plants and soils, whereas N losses to leaching and N 2 O emissions can average 5.6 and 1.84 % of the total applied N, respectively. Maintenance of trash, rotation with N-fixing legume species, and optimization of byproducts usage have potential for reducing the N requirements of sugarcane cultivation in Brazil. Moreover, the development of sugarcane genotypes with higher NUEs, along with management systems that consider soil capacity of mineralization, is required for improving the NUE of sugarcane. Strategies to maintain N as NH 4 + in sugarcane-cropped soils also have the potential to reduce N losses and enhance NUE. The development of secondgeneration biofuels is important for increasing biofuel production while simultaneously maintaining N rates and improving NUE, and sugarcane systems in Brazil show potential for sustainable biofuel production with low N rates and limited N 2 O losses. Reducing N rates in sugarcane fields is thus necessary for improving sugarcane-based biofuel production and reducing its environmental impacts.

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“…The estimated percent contribution of nitrogen derived from air (%Ndfa) in field-grown sugarcane plants varied from zero to 70% in Brazil (Yoneyama et al 1997;Boddey et al 2001), the Philippines, and Miyako Island (Japan) (Yoneyama et al 1997), but was negligible in Australia (Biggs et al 2002) and South Africa (Hoefsloot et al 2005). The %Ndfa in Brazil and the Philippines showed great variation, depending on the site of sugarcane cultivation (Yoneyama et al 1997).…”

Section: Introductionmentioning

confidence: 99%

Two seasons’ study on nifH gene expression and nitrogen fixation by diazotrophic endophytes in sugarcane (Saccharum spp. hybrids): expression of nifH genes similar to those of rhizobia

et al. 2010

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To explore the presence and expression of the nifH gene of diazotrophic endophytes in sugarcane (Saccharum spp. hybrids) cv. NiF8, we conducted pot experiments for two seasons in a glasshouse from 10 June to 17 September (high temperature and long days) in 2005 and 1 September to 9 December (low temperature and short days) in 2006. The expression of nifH genes in the stems and roots of sugarcane plants at 50 (or 59) and 100 days after transplanting was investigated by reverse transcription (RT)-PCR and by examining the nifH nucleotide sequence diversity. N 2 fixation was assessed by the 15 N-dilution method. The nifH RNA sequences in the stems and roots of the first experiment were similar to those of Bradyrhizobium sp. and Azorhizobium caulinodans. In the second experiment, nifH expression from these bacteria was not detected in the stems. nifH gene expression in the stems was in accordance with 18-24% N derived from air in the high-temperature season and negligible in the low-temperature season. Both the proliferation of N 2 fixers and expression of the nifH gene indicated that bacteria similar to rhizobia may contribute to N 2 fixation in sugarcane under our experimental conditions.

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Cited by 40 publications

References 23 publications

Detection ofnifHSequences in Sugarcane (Saccharum officinarumL.) and Pineapple (Ananas comosus[L.] Merr.)

Detection ofnifHSequences in Sugarcane (Saccharum officinarumL.) and Pineapple (Ananas comosus[L.] Merr.)

Nitrogen Use Efficiency for Sugarcane-Biofuel Production: What Is Next?

Two seasons’ study on nifH gene expression and nitrogen fixation by diazotrophic endophytes in sugarcane (Saccharum spp. hybrids): expression of nifH genes similar to those of rhizobia

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