Foliar Sprays of Photosynthetic Bacteria Improve the Growth and Anti-Oxidative Capability on Chinese Dwarf Cherry Seedlings

Yin, Zehao; Shang, Zhi Wei; Wei, Chao; Ren, Jing; Song, Xing Shun

doi:10.1080/01904167.2012.663439

Cited by 18 publications

(14 citation statements)

References 40 publications

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“…The application of R. palustris, irrespective of root inoculation and foliar spray, has been proven to be a feasible strategy to improve the yields of crops like rice (Harada et al 2005) and Chinese dwarf cherry (Yin et al 2012). In support, the plant biomass and net photosynthetic rate of Chinese pak choi cabbage (B. chinensis L.) in this study were elevated due to the foliar spray of R. palustris.…”

Section: Promotion Effects Of R Palustris On Plant Growthmentioning

confidence: 82%

“…Moreover, it harbors various functions including excretion of plant hormones, N-fixation, and solubilization of mineral nutrients (Kantachote et al 2005;Oda et al 2008). Those features make it feasible to be used as plant growth-promoting bacteria in agriculture (Yin et al 2012). Often, it is the case to employ the R. palustris as the root inoculant (Lee et al 2008), while the foliar application and its subsequent effect is less concerned.…”

Section: Introductionmentioning

confidence: 99%

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The foliar spray of Rhodopseudomonas palustris grown under Stevia residue extract promotes plant growth via changing soil microbial community

Feng

Wang

et al. 2015

J Soils Sediments

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Purpose The extract of Stevia residue is an ideal substitute for cultivation of the purple nonsulfur bacterium, like Rhodopseudomonas palustris (R. palustris). But the influence of R. palustris grown under residue extract on its downstream application is still not well-characterized. The objective of this study was to assess the effect of foliar spray of R. palustris grown under Stevia residue extract on the plant growth and soil microbial properties. Materials and methods A pot experiment was carried out under the greenhouse condition, consisting of four treatments varying in the sprayed substances: sterilized water (control), R. palustris grown under the chemical medium supplemented with L-tryptophan (SyT), R. palustris grown under Stevia residue extract supplemented with L-tryptophan (ExT), and R. palustris grown under Stevia residue extract supplemented with NH 4 Cl (ExT). The net photosynthesis rate of the uppermost leaves was measured with a portable photosynthesis system. Soil microbial activity was analyzed by microcalorimetry. Soil bacterial community components were determined by real-time quantitative PCR (qPCR) and high-throughput sequencing techniques. Results and discussion Compared with SyT, the R. palustris grown under Stevia residue extract not only improved the plant biomass and the net photosynthetic rate to a large extent, but also increased soil microbial metabolic activity and altered community compositions as well. The treatments receiving R. palustris, especially ExT and ExN, increased the relative abundances of some functional guilds involved in C turnover and nutrient cycling in soil, including Acidobacteria, Actinobacteria, Proteobacteria, Gemmatimonadaetes, Nitrospirae, and Planctomycetes. Conclusions R. palustris grown under the Stevia residue extract showed advantages over that under the chemical medium on both plant growth and soil microbial properties. One of the possible reasons could result from the increases in microbial activity and several bacterial keystone guilds involved into C and nutrient cycling, both of which potentially contribute to the improved plant growth. The results would be conducive to the downstream application of R. palustris in an economical way.

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Section: Promotion Effects Of R Palustris On Plant Growthmentioning

confidence: 82%

Section: Introductionmentioning

confidence: 99%

The foliar spray of Rhodopseudomonas palustris grown under Stevia residue extract promotes plant growth via changing soil microbial community

Feng

Wang

et al. 2015

J Soils Sediments

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“…suspension on mushroom cultures: spraying the bacterial suspension on casing soil and between the flushes could significantly increase the mushroom yield [13]. Yin et al also found that the fresh weight of sweet cherry was increased by foliar spraying with PPB suspension [23]. Contents of chlorophyll and soluble sugar were correlated with the intensity of photosynthesis.…”

Section: Discussionmentioning

confidence: 99%

“…When leaves are sprayed with PPB, the bacteria survive with light which is different from with dark in soil. Nevertheless, whether foliar application of PPB can result in plant-growth-promoting effects has been poorly studied [23].…”

Section: Introductionmentioning

confidence: 99%

Purple Phototrophic Bacterium Enhances Stevioside Yield by Stevia rebaudiana Bertoni via Foliar Spray and Rhizosphere Irrigation

Wang

Lin

2013

PLoS ONE

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This study was conducted to compare the effects of foliar spray and rhizosphere irrigation with purple phototrophic bacteria (PPB) on growth and stevioside (ST) yield of Stevia. rebaudiana. The S. rebaudiana plants were treated by foliar spray, rhizosphere irrigation, and spray plus irrigation with PPB for 10 days, respectively. All treatments enhanced growth of S. rebaudiana, and the foliar method was more efficient than irrigation. Spraying combined with irrigation increased the ST yield plant -1 by 69.2% as compared to the control. The soil dehydrogenase activity, S. rebaudiana shoot biomass, chlorophyll content in new leaves, and soluble sugar in old leaves were affected significantly by S+I treatment, too. The PPB probably works in the rhizosphere by activating the metabolic activity of soil bacteria, and on leaves by excreting phytohormones or enhancing the activity of phyllosphere microorganisms.

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“…In the early seedling periods, for example, C. humilis not only grows slowly, but is vulnerable to the environmental changes. In our previous studies, it was proven that foliar sprays of photosynthetic bacteria could effectively improve the growth and antioxidative capability on C. humilis seedlings (Yin et al 2011). Apart from this, at the moment there are no studies addressing the effects of drought stress on photochemical efficiency, photosynthesis and carotenoid composition of C. humilis seedlings.…”

Section: Introductionmentioning

confidence: 97%

Mechanism of xanthophyll-cycle-mediated photoprotection in Cerasus humilis seedlings under water stress and subsequent recovery

Song¹,

Shang²,

Yin³

et al. 2011

Photosynt.

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Periodic drought fluctuation is a common phenomenon in Northwest China. We analyzed the response of Chinese dwarf cherry (Cerasus humilis) seedlings, a dwarf shrub species with considerably strong adaptabilities, exposed to water stress (WS) by withholding water for 21 d, and subsequent recovery of 7 d. Leaf relative water content (LRWC), net photosynthetic rate (P N ), maximal quantum yield of PSII photochemistry (F v /F m ), and effective quantum yield of PSII photochemistry (Φ PSII ) decreased with increasing water deficit. In contrast, the nonphotochemical quenching of Chl fluorescence (NPQ) significantly increased, as well as the amounts of violaxanthin (V) + antheraxanthin (A) + zeaxanthin (Z). In the whole levels, the photosynthetic pigment composition did not display significant changes in WS seedlings. However, the de-epoxidation state of xanthophyll cycle pigments [(Z+0.5A)/VAZ ] generally exhibited higher values in WS seedlings. The significant inhibition of de-epoxidation by dithiothreitol (DTT) and negligible changes of epoxidation of Z by glucosamine (Gla) were both observed; the slight but stably upregulated transcript level of violaxanthin de-epoxidase (VDE) and downregulated zeaxanthin epoxidase (ZEP) expression profile were found during WS period, indicating that they were regulated on post-transcript levels. VDE activity, via the accumulation of Z and A, which confers a greater capacity of photoprotection, appears to contribute to the survival of severely stressed plants.

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Foliar Sprays of Photosynthetic Bacteria Improve the Growth and Anti-Oxidative Capability on Chinese Dwarf Cherry Seedlings

Cited by 18 publications

References 40 publications

The foliar spray of Rhodopseudomonas palustris grown under Stevia residue extract promotes plant growth via changing soil microbial community

The foliar spray of Rhodopseudomonas palustris grown under Stevia residue extract promotes plant growth via changing soil microbial community

Purple Phototrophic Bacterium Enhances Stevioside Yield by Stevia rebaudiana Bertoni via Foliar Spray and Rhizosphere Irrigation

Mechanism of xanthophyll-cycle-mediated photoprotection in Cerasus humilis seedlings under water stress and subsequent recovery

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