Sunflower inoculation with Azospirillum and other plant growth promoting rhizobacteria

Fages, Jacques; Arsac, J. F.

doi:10.1007/978-94-011-3486-6_35

Cited by 14 publications

(9 citation statements)

References 9 publications

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“…In the greenhouse, the natural bacterial microflora from sunflower rhizosphere and strains of Azospirillum lipoferum were evaluated for their ability to promote sunflower growth in pots. Two strains of Azospirillum lipoferum strains and one of Xanthomonas maltophilia produced the best increased growth response (Fages and Arsac 1991). The response to Azospirillum brasilense Cd inoculation of chick-pea showed a significantly positive effect on the plant roots and shoots compared with uninoculated controls or to Rhizobium inoculated (but not nodulated) plants (Del Gallo and Fabbri 1990).…”

Section: Recent Greenhouse Field Resultsmentioning

confidence: 99%

“…The claims that Azospirillum mainly enhances growth of cereal plants is inaccurate as well. Two Azospirillum lipoferum strains enhanced the growth of sunflower plants significantly (Fages and Arsac 1991) as did Azospirillum brasilense Cd for the development of oak seedlings (Zaady et al 1993). Strains of Azospirillum lipoferum showed the strongest effect on the increase of nitrogen content and the mass and length of carrots (Govedarica et al 1993(Govedarica et al , 1994 and on the yield of sugar beets in the field (Favilli et al 1993).…”

Section: New Host Plants For Isolation and For Inoculation Of The Bacmentioning

confidence: 97%

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Azospirillum– plant relationships: environmental and physiological advances (1990–1996)

Bashan¹,

Holguín²

1997

Can. J. Microbiol.

546

268

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This review presents a critical and comprehensive analysis of the developments in environmental and physiological studies related to Azospirillum interactions with plants based on information published between 1990 and 1996. It was designed as an update of a previous review with a similar scope. Apart from an update, this review emphasizes the central issues of Azospirillum research today, such as coinoculation with other microorganisms and hormonal studies, shows the less researched areas, and proposes possible avenues for the exploitation of this bacterium in areas other than agriculture.Key words: Azospirillum, bacterial inoculation, plant–bacteria interaction, plant growth promoting rhizobacteria, rhizosphere bacteria.

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Section: Recent Greenhouse Field Resultsmentioning

confidence: 99%

Section: New Host Plants For Isolation and For Inoculation Of The Bacmentioning

confidence: 97%

Azospirillum– plant relationships: environmental and physiological advances (1990–1996)

Bashan¹,

Holguín²

1997

Can. J. Microbiol.

546

268

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“…During the past 15 years, numerous reports of plant inoculation with Azospirillum have been published. A considerable number of studies have described beneficial effects on several plants: cereals [2], Compositae such as sunflower [3] or Cruciferae such as mustard [4], vegetable crop species [5], legumes such as chick pea [6], clover and alfalfa [7].…”

Section: Introductionmentioning

confidence: 99%

Development of a strain-specific probe to follow inoculated Azospirillum lipoferum CRT1 under field conditions and enhancement of maize root development by inoculation

Jacoud

Faure

Wadoux³

et al. 1998

FEMS Microbiology Ecology

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In order to develop a reliable and specific tool for the detection of Azospirillum lipoferum CRT1, randomly cloned DNA fragments from this strain were used as hybridization probes to differentiate A. lipoferum CRT1 from 29 closely related Azospirillum strains. Two cloned fragments hybridizing only with DNA from A. lipoferum CRT1 (CRT1‐5 and CRT1‐7) were considered as specific probes of this strain. CRT1‐7 fragment (1.4 kb) was further tested for purity control of the inoculant Azogreen‐m by colony hybridization. The sequence of the CRT1‐7 fragment has been determined and compared with those present in databases: no significant similarity with other sequences was detected. This probe permitted us to count specifically A. lipoferum CRT1 cells on maize roots during a field trial. During the first two weeks, A. lipoferum CRT1 remained at 107 CFU plant−1. Afterwards, bacterial concentration sharply decreased. We could not detect any CRT1 cells on maize roots 28 days after sowing. Concurrently, three plant parameters were estimated (plant height, primary root length and root fresh weight). The results showed that A. lipoferum CRT1 growth promotion effect began early on (from day 14) in plant development and increased in spite of a rapid decrease of bacterial density.

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“…In previous studies, Bergottini et al (2015) reported that three endophytic bacteria isolated from yerba mate root produced a highly significant increase in yerba mate biomass yield in soil in comparison to the non-native PGPR strain A. brasilense 245, which points out the importance of using native strains as effective bio-inoculants (Fages and Arsac 1991). Moreover, there are many studies on Trichoderma spp.…”

Section: Discussionmentioning

confidence: 99%

Trichodermaspp. from Misiones, Argentina: effective fungi to promote plant growth of the regional cropIlex paraguariensisSt. Hil

et al. 2019

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Ilex paraguariensis St. Hil (yerba mate) is an important crop in the north of Argentina, mainly in Misiones province. The application of Trichoderma as a biocontroller and biofertilizer can replace or reduce the use of agrochemicals, decreasing the negative ecological impact. In this research, we evaluated in vitro and in vivo antagonistic and plant growth promoting (PGP) properties of Trichoderma species isolated from different regions of Misiones province. Dual culture assays of Trichoderma against phytopathogenic fungi associated with yerba mate showed that T. stilbohypoxyli LBM 120 was the most effective antagonist, inhibiting in more than 75% all phytopathogen growth. Trichoderma atroviride LBM 112 and T. stilbohypoxyli LBM 120 were positive on endoglucanase, protease, chitinase, siderophore production, and phosphate solubilisation showed the best biological control agents and PGP properties. The PGP properties of Trichoderma spp. evaluated in vivo on yerba mate seedlings showed that T. atroviride LBM 112, T. stilbohypoxyli LBM 120, and T. koningiopsis LBM 219 enhanced plant dry weight over 47% in total and 24% in the aerial part. Moreover, T. koningiopsis LBM 219 increased root dry weight 25% in contrast with in vitro controls. In conclusion, native Trichoderma strains could be a sustainable solution to improve yerba mate yield.

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Sunflower inoculation with Azospirillum and other plant growth promoting rhizobacteria

Cited by 14 publications

References 9 publications

Azospirillum– plant relationships: environmental and physiological advances (1990–1996)

Azospirillum– plant relationships: environmental and physiological advances (1990–1996)

Development of a strain-specific probe to follow inoculated Azospirillum lipoferum CRT1 under field conditions and enhancement of maize root development by inoculation

Trichodermaspp. from Misiones, Argentina: effective fungi to promote plant growth of the regional cropIlex paraguariensisSt. Hil

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