Combined use of beneficial soil microorganism and agrowaste residue to cope with plant water limitation under semiarid conditions

Armada, Elisabeth; Portela, Grazielly de França; Roldán, A.; Azcón‐Aguilar, Concepción

doi:10.1016/j.geoderma.2014.06.025

Cited by 78 publications

(38 citation statements)

References 57 publications

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“…These culture media were sterilized by autoclaving at 120°C for 30 min. The Aspergillus niger NB2 strain was used to mineralize P in the agrowaste residue ( Armada et al, 2014; Medina et al, 2006). For inoculum preparation, A. niger was grown in plates containing spores at 30°C for 7 d, which were scraped in sterile distilled water.…”

Section: Methodsmentioning

confidence: 99%

Interactive effect between Cu‐adapted arbuscular mycorrhizal fungi and biotreated agrowaste residue to improve the nutritional status of Oenothera picensis growing in Cu‐polluted soils

Meier

Cornejo

Cartes

et al. 2015

J. Plant Nutr. Soil Sci.

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The interactive effect of sugar beet (SB) agrowaste and arbuscular mycorrhizal (AM) fungi inoculation in response to increasing Cu levels was evaluated in the metallophyte Oenothera picensis. Plants were grown in a Cu-added soil (0, 100, or 500 mg Cu kg -1 ), in presence or absence of SB, and inoculated with: (1) indigenous Cu adapted mycorrhiza (IM) isolated from Cu-polluted soils; (2) Claroideoglomus claroideum (CC); or (3) maintained uninoculated (control). Sugar beet application produced an increase in shoot biomass of 2 to 7 times, improving plant nutritional status and allowing their survival at the highest Cu concentrations. Moreover, AM fungi utilization had a positive effect promoting the plant establishment; nevertheless, Cu plant concentration as well as the mycorrhizal development in terms of AM colonization, AM spore density, and glomalin production were strictly dependent of the AM fungi strains used. Remarkable differences between AM fungi strains were observed at the highest soil Cu level where only plants colonized by IM were able to survive and grow when no SB residue was added. An interactive effect between AM fungi and SB produced a higher plant growth than plants without the amendment application, improving the plant establishment and allowing their survival at highest copper concentrations, suggesting that this combination could be used as a biotechnological tool for the phytoremediation of Cu-polluted soils.

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Section: Methodsmentioning

confidence: 99%

Interactive effect between Cu‐adapted arbuscular mycorrhizal fungi and biotreated agrowaste residue to improve the nutritional status of Oenothera picensis growing in Cu‐polluted soils

Meier

Cornejo

Cartes

et al. 2015

J. Plant Nutr. Soil Sci.

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“…In many cases, inoculated drought-stressed plants showed lower antioxidant activities than non-inoculated plants. These results are indicative of the bacterial capacity to reduce reactive oxygen species (ROS) levels in drought stressed plants and were also correlated with increased physiological parameters such as photosynthesis (Armada et al, 2014a(Armada et al, , 2014bKasim et al, 2013;Rueda-Puente et al, 2010).…”

Section: Introductionmentioning

confidence: 93%

Autochthonous arbuscular mycorrhizal fungi and Bacillus thuringiensis from a degraded Mediterranean area can be used to improve physiological traits and performance of a plant of agronomic interest under drought conditions

Armada

Azcón‐Aguilar

López-Castillo

et al. 2015

Plant Physiology and Biochemistry

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“…Actually, some studies have shown that bacterial capacity to reduce reactive oxygen species (ROS) levels in drought stressed plants and were also correlated with an increase in photosynthesis (Armada et al, 2014). Thus, Shi et al (2010) showed that endophytic bacteria species increased the photosynthetic capacity and total chlorophyll content of sugar beet, leading to a consequent increased carbohydrate synthesis, these increases were promoted by phytohormones (indole-3-acetic acid, IAA) which were produced by the bacteria.…”

Section: Introductionmentioning

confidence: 99%

Bacillus spp. inoculation improves photosystem II efficiency and enhances photosynthesis in pepper plants

Samaniego-Gámez¹,

Garruña-Hernández²,

Tun-Suárez³

et al. 2016

Chilean J. Agric. Res.

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Bacillus is one of the main rhizobacteria to have been used as a study model for understanding many processes. However, their impact on photosynthetic metabolism has been poorly studied. The aim of this study was to evaluate the physiological parameters of pepper (Capsicum chinense Jacq.) plants inoculated with Bacillus spp. strains. Pepper seeds were inoculated with Bacillus cereus (K46 strain) and Bacillus spp. (M9 strain; a mixture of B. subtilis and B. amyloliquefaciens), chlorophyll fluorescence and gas exchange were evaluated. The ANOVA (P ≤ 0.05) showed that the maximum photochemical quantum yield of photosystem II (PSII) (F v /F m ) in plants inoculated with the M9 strain (0.784) increased with respect to other treatments (K46: 0.744 and Control: 0.739). Inoculated plants with M9 and K46 strains exhibited an increase of both photochemical quenching (qP) (by 27% and 24%, respectively) and CO 2 assimilation rate (photosynthesis) (by 20% and 16%, respectively), when compared with non-inoculated plants. Furthermore, plants inoculated with M9 and K46 showed decreased transpiration (61% and 57%, respectively) with respect to controls. Likewise, both electron transport rate of PSII (ETR) and PSII operating efficiency (Φ PSII ) increased in inoculated plants. However, only plants inoculated with the M9 strain showed enhancements on all growth characteristics. Our results therefore show that inoculating plants with M9 strain positively influenced the performance of the photosynthetic mechanism in pepper plants to increase chlorophyll fluorescence and gas exchange parameters. Promotion of photosynthetic capacity in pepper was due to increased ETR in the thylakoid membranes, which was promoted by the bacteria. M9 strain could even be used in sustainable agriculture programs.

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Combined use of beneficial soil microorganism and agrowaste residue to cope with plant water limitation under semiarid conditions

Cited by 78 publications

References 57 publications

Interactive effect between Cu‐adapted arbuscular mycorrhizal fungi and biotreated agrowaste residue to improve the nutritional status of Oenothera picensis growing in Cu‐polluted soils

Interactive effect between Cu‐adapted arbuscular mycorrhizal fungi and biotreated agrowaste residue to improve the nutritional status of Oenothera picensis growing in Cu‐polluted soils

Autochthonous arbuscular mycorrhizal fungi and Bacillus thuringiensis from a degraded Mediterranean area can be used to improve physiological traits and performance of a plant of agronomic interest under drought conditions

Bacillus spp. inoculation improves photosystem II efficiency and enhances photosynthesis in pepper plants

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