Differential plant growth promotion and nitrogen fixation in two genotypes of maize by several Herbaspirillum inoculants

Alves, Gabriela Cavalcanti; Videira, Sandy Sampaio; Urquiaga, Segundo; Reis, Verônica Massena

doi:10.1007/s11104-014-2295-2

Cited by 83 publications

(58 citation statements)

References 51 publications

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“…Confirming that fixation can occur in Poaceae species (Miranda et al, 1990;Montañez et al, 2009;Morais et al, 2012;Urquiaga et al, 2012;Santos et al, 2017), maize and sorghum had low δ15N signal and in the case of sorghum even lower than the signals of all legume species. Proportions of Poaceae plant N derived from fixation vary much depending on the species and environmental conditions and are usually inferior to those of legume species (Alves et al, 2015;Santos et al, 2017). The lower δ 15 N signal of sorghum is an important issue because it rules out the possibility that the atmospheric N present in these sorghum plants was transferred by the legume species (Peoples et al, 2015).…”

Section: Figmentioning

confidence: 99%

“…Several nitrogen-fixing species, especially of Azospirillum, Herbaspirillum, Gluconacetobacter and Burkholderia genera can colonize the surface or the inner roots of sorghum (Coelho et al, 2009;Luna et al, 2010;Yoon et al, 2016), maize (Roncato-Maccari et al, 2003;Roesch et al, 2006;Montañez et al, 2009) and elephant grass (Videira et al, 2014) among other tropical grasses. But it remains unclear to what extent the plants benefit from N fixed by endophytic diazotrophs or from the production of indole-3-acetic acid (IAA) or other growth-promoting substances that are proven to cause morphological changes in roots (such as increased lateral roots and root hairs); thus, increasing nutrient absorption (Beneduzi et al, 2013;Videira et al, 2014;Alves et al, 2015). The current knowledge on the subject indicates that species such as sugarcane can fix high proportions of N in some places, particularly in Brazil Baptista et al, 2014), and have no fixation in other countries, like Australia (Biggs et al, 2002) and South Africa (Hoefsloot et al, 2005).…”

Section: Figmentioning

confidence: 99%

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Nitrogen fixation of Poaceae and Leguminoseae in a green manure experiment in the Brazilian semiarid region

Neto¹,

Freitas²,

Giongo³

et al. 2017

Aust J Crop Sci

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Mixtures of green manure species, including Leguminosae and Poaceae, planted prior to commercial crops may incorporate more biomass than Leguminosae alone and fix more nitrogen than Poaceae alone. Biomass and nitrogen incorporation of three plant treatmens were compared under irrigation condition. In two mixture treatments, the same seven green manure species were planted together but with different seeding proportions. Treatment (1) (low-legume) had 50% the recommended seeding rate of the legume species (jack beans, cowpea and sunn hemp) and 150% the recommended seeding rate of the non-legume species (maize, pearl millet, sorghum and sun flower). The other treatment (2) (high-legume) had opposite proportions. In the third treatment, no green manure plants were sown and weed plants were allowed to grow. The results showed that biomass (9.1 and 8.2 Mg ha -1 ) and nitrogen accumulation (160 and 161 kg ha -1 ) did not differ between the low-legume and high-legume treatments, respectively, which were 2.5 times higher than those of the weed treatment (3.3 Mg ha -1 and 58.1 kg ha -1 ). Despite the higher non-legume biomass proportion and lower nitrogen concentration, the low-legume treatment symbiotically fixed as much N (52 kg ha -1 ) as the high-legume treatment because sorghum derived more N from the atmosphere (79 %) and maize in the same range as the legume species (37 to 54%). Therefore, sorghum and maize can have high N endophytic fixation and green manure prior to commercial crops can be produced both with legume and Poaceae species mixed together, providing a high input of N and biomass in a short period.

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Section: Figmentioning

confidence: 99%

Section: Figmentioning

confidence: 99%

Nitrogen fixation of Poaceae and Leguminoseae in a green manure experiment in the Brazilian semiarid region

Neto¹,

Freitas²,

Giongo³

et al. 2017

Aust J Crop Sci

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“…When the δ 15 N value of a grass species (or variety) was significantly different from the average δ 15 N of the reference plants, the proportion of fixed N in the plant was calculated using the following formula: (Shearer and Kohl, 1986) ) and B is the δ 15 N value for fixing plants grown in the absence of N. As growth has not been entirely achieved on BNF of grasses species, the value was assumed to be zero (the same abundance of 15 N as air), as described by , Baptista et al (2014) and Alves et al (2015).…”

Section: Estimates Of Bnfmentioning

confidence: 99%

“…Several nitrogen-fixing species, especially genera Azospirillum, Herbaspirillum, Gluconacetobacter and Burkholderia, have already been identified and colonized from the surface or the inner roots of sorghum (Coelho et al, 2009;Luna et al, 2010;Yoon et al, 2016), maize (Roesch et al, 2006;Montañez et al, 2009;Kifle and Laing 2016;Brusamarello-Santos et al, 2017;Norman et al 2017), elephant grass (Videira et al, 2012) and other tropical grasses. Despite the vast literature on the topic, it remains unclear whether and to what extent, grasses benefit from N fixed by endophytic diazotrophs or if benefits are due to the production of indole-3-acetic acid (IAA) and other growthpromoting substances that are proven to cause morphological changes in roots (such as increased lateral roots and root hairs), increasing nutrient absorption (Steenhoudt and Vandereyden, 2000;Videira et al, 2012;Beneduzi et al, 2013;Alves et al, 2015).…”

Section: Introductionmentioning

confidence: 99%

The 15N natural abundance technique to assess the potential of biological nitrogen fixation (BNF) in some important C4 grasses

Carvalho¹,

Menezes²,

Freitas³

et al. 2017

Aust J Crop Sci

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Grasses such as sugarcane (Saccharum spp.), maize (Zea mays L.) and sorghum (Sorghum bicolor L. Moench) with C4 photosynthetic system are important crops that can host endophytic bacteria capable for biological nitrogen fixation (BNF). However, fixation measurements have yielded conflicting results. We determined BNF of five sugarcane and two sorghum varieties, maize and Guinea (Panicum maximum Jacq), elephant (Pennisetum purpureum Schum) and buffel (Cenchrus ciliaris L.) grasses in a pot experiment, using the 15 N natural abundance technique, with a soil naturally rich in 15 N (δ 15 N > 16 ‰) and two reference species (castor bean, Ricinus communis L., and cotton, Gossypium hirsutum L.) that absorb only N from the soil (average δ 15 N = 9.2 ‰). The initial results showed that no fixation occurred in elephant and buffel grasses. Sorghum, maize, Guinea grass and four sugarcane varieties had δ 15 N signals significantly lower than both reference species, indicating that they absorbed N from the atmosphere (δ 15 N = 0 ‰). The differences in signals from the reference species translates into proportions of plant N content originating from BNF varied from 12.8 to 19.4 % for sugarcane, 22.4% for maize, 20.9% for Guinea grass, and 24.7 to 31.2 % for sorghum. Nitrogen fixation by these species represents a potential of great fertilizer economy and high yields in low input agriculture.

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“…(Pedrinho et al, 2010), Burkholderia spp. (Alves et al, 2015), Herbaspirillum spp. (Dotto et al, 2010;Araújo et al, 2013) and Rhizobium spp.…”

Section: Introductionmentioning

confidence: 99%

Maize response to inoculation with strains of plant growth-promoting bactéria

Dartora

Guimarães

Menezes

et al. 2016

Rev. bras. eng. agríc. ambient.

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A B S T R A C TThe aim of this study was to evaluate the response of maize to inoculation with strains of plant growth-promoting bacteria (PGPB) in two cultivation years. The experiment was set in a randomized block design with four replicates in two cultivation years (2012/13 and 2013/14). The treatments consisted of PGPB inoculation: control (without N and without inoculation); 30 kg of N ha -1 at sowing (N1); 160 kg of N ha -1 (N1 + 130 kg of N ha -1 as top-dressing); N1 + A. brasilense, Ab-V5; N1 + A. brasilense, HM053; N1 + Azospirillum sp. L26; N1 + Azospirillum sp. L27; N1 + Enhydrobacter sp. 4331; N1 + Rhizobium sp. 8121. Basal stem diameter, plant height, leaf area, shoot dry matter and yield were evaluated. The strain of Rhizobium sp. 8121and the isolate Azospirillum sp. L26 associated with 30 kg of N ha -1 at sowing promoted yields equivalent to that of the N fertilization of 160 kg ha -1 , demonstrating the potential to be used in the inoculation of maize seeds.Resposta do milho à inoculação de estirpes de bactérias promotoras do crescimento de plantas R E S U M O Neste trabalho objetivou-se avaliar a resposta do milho à inoculação de estirpes de bactérias promotoras do crescimento de plantas (BPCP's) em dois anos de cultivo. O experimento foi conduzido em delineamento experimental de blocos ao acaso com quatro repetições em dois anos de cultivo (2012/13 e 2013/14). Os tratamentos foram constituídos pela inoculação de BPCP's: controle (sem N e sem inoculação); 30 kg ha -1 N na semeadura (N1); 160 kg ha -1 N (N1 + 130 kg ha -1 N em cobertura); N1 + A. brasilense, Ab-V5; N1 + A. brasilense, HM053; N1 + Azospirillum sp., L26; N1 + Azospirillum sp., L27; N1 + Enhydrobacter sp. 4331; N1 + Rhizobium sp. 8121. Diâmetro basal do colmo, altura da planta, área foliar, massa seca da parte aérea e produtividade foram avaliados. A estirpe de Rhizobium sp. 8121 e o isolado de Azospirillum sp. L26 associados à adubação com 30 kg ha -1 N na semeadura proporcionaram produtividades equivalentes à adubação com 160 kg ha -1 N demonstrando potencial para serem utilizadas na inoculação de sementes de milho.

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Differential plant growth promotion and nitrogen fixation in two genotypes of maize by several Herbaspirillum inoculants

Cited by 83 publications

References 51 publications

Nitrogen fixation of Poaceae and Leguminoseae in a green manure experiment in the Brazilian semiarid region

Nitrogen fixation of Poaceae and Leguminoseae in a green manure experiment in the Brazilian semiarid region

The 15N natural abundance technique to assess the potential of biological nitrogen fixation (BNF) in some important C4 grasses

Maize response to inoculation with strains of plant growth-promoting bactéria

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