Efficacy of rhizobia strains on growth and chemical composition of cancer bush (
            <i>Sutherlandia frutescens</i>
            )

Masenya, Tsobedi Absalom; Mashela, P. W.; Pofu, K. M.

doi:10.1080/09064710.2021.2003852

Cited by 4 publications

(5 citation statements)

References 16 publications

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“…Moreover, the commercial inoculant employed in the study failed to elicit nodulation in L. frutescens leading to low biomass production even though this inoculant has commonly been used for L. frutescens. For example, contrary to the findings of this study, Masenya et al [24] and Makgato et al [25] demonstrated the potential of the commercial inoculant in improving the yield, phytochemicals and antioxidant activities in L. frutescens. The insufficient yield observed in the negative and positive control plants resulted in the lack of data for the other tests conducted on the plants.…”

Section: Discussioncontrasting

confidence: 99%

“…At the same time, the unexpected performance of the commercial inoculant in the current study can be attributed to possible incompatibility between the strain and the host L. frutescens. As the present study was carried out under sterile conditions, the studies by Masenya et al [24] and Makgato et al [25] may have benefited from the native soil microbial population rather than the inoculant. At the same time, Gerding et al [27] hinted at the susceptibility of Lessertia species to ineffective nodulation by some Rhizobium bacterial species.…”

Section: Discussionmentioning

confidence: 86%

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Bioprospecting for Rhizobacteria with the Ability to Enhance Drought Tolerance in Lessertia frutescens

Hlongwane,

Dakora,

Mohammed

et al. 2023

IJMS

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Lessertia frutescens is a multipurpose medicinal plant indigenous to South Africa that is used for the management of cancer, stomach ulcers, wounds, etc. The use and demand for the raw materials from this plant have been increasing steadily over the years, putting strain on the dwindling wild populations. Although cultivation may provide relief to the strained supply, the persistent drought climate poses a threat to the plant’s growth and productivity. This study explored three plant-growth-promoting rhizobacteria isolates, TUTLFNC33, TUTLFNC37 and TUTLFWC74, obtained from the root nodules of Lessertia frutescens as potential bioinoculants that can improve yield, biological activities and the production of secondary metabolites in the host plant. Isolate TUTLFNC37 was identified as the most promising isolate for inoculation of Lessertia frutescens under drought conditions as it induced drought tolerance through enhanced root proliferation, osmolyte proline accumulation and stomatal closure. Superior biomass yield, phenolics, triterpenes and antioxidant activity were evident in the extracts of Lessertia frutescens inoculated with TUTLFNC37 and under different levels of drought. Furthermore, the metabolomics of the plant extracts demonstrated the ability of the isolate to withstand drastic changes in the composition of unique metabolites, sutherlandiosides A–D and sutherlandins A–D. Molecular families which were never reported in the plant (peptides and glycerolipids) were detected and annotated in the molecular networks. Although drought had deleterious effects on Lessertia frutescens, isolate TUTLFNC37 alleviated the impact of the stress. Isolate TUTLFNC37 is therefore the most promising, environmentally friendly alternative to harmful chemicals such as nitrate-based fertilizers. The isolate should be studied to establish its field performance, cross infectivity with other medicinal plants and competition with inherent soil microbes.

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Section: Discussioncontrasting

confidence: 99%

Section: Discussionmentioning

confidence: 86%

Bioprospecting for Rhizobacteria with the Ability to Enhance Drought Tolerance in Lessertia frutescens

Hlongwane,

Dakora,

Mohammed

et al. 2023

IJMS

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“…Masenya and colleagues [ 13 ] compared the efficacy of native rhizobia strains for L. frutescens and commercial inoculum formulated from Bradyrhizobium and Rhizobium symbionts. The native symbionts exhibited superior plant growth parameters and symbiotic effectiveness when compared to the commercial strains.…”

Section: Growth and Phytochemical Enhancement In Lessertia ...mentioning

confidence: 99%

“…Beneficial microbes in the rhizosphere promote plant growth through several mechanisms that include the solubilization or release of nutrient elements from sparingly available sources [ 22 ]. For example, in legumes such as L. frutescens , Nitrogen (N 2 ) fixation in association with plant-growth-promoting rhizobacteria called rhizobia can supply the plants N 2 requirements for growth [ 13 ]. Broadly put, plant-growth-promoting rhizobacteria (PGPR) are soil bacteria with the ability to regulate plant growth and development directly or indirectly [ 22 , 23 ].…”

Section: Introductionmentioning

confidence: 99%

The Potential of Rhizobacteria to Mitigate Abiotic Stress in Lessertia frutescens

Hlongwane

Mohammed

Mokgalaka

et al. 2023

Plants

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Lessertia frutescens is a multipurpose medicinal plant indigenous to South Africa. The curative ability of the medicinal plant is attributed to its rich phytochemical composition, including amino acids, triterpenoids, and flavonoids. A literature review of some of the phytochemical compounds, particularly amino acids, in L. frutescens shows a steady decrease in concentration over the years. The reduction of the phytochemical compounds and diminishing biological activities may be attributed to drought and salt stress, which South Africa has been grappling with over the years. Canavanine, a phytochemical which is associated with the anticancer activity of L. frutescens, reduced slightly when the plant was subjected to salt stress. Like other legumes, L. frutescens forms a symbiotic relationship with plant-growth-promoting rhizobacteria, which facilitate plant growth and development. Studies employing commercial plant-growth-promoting rhizobacteria to enhance growth and biological activities in L. frutescens have been successfully carried out. Furthermore, alleviation of drought and salt stress in medicinal plants through inoculation with plant growth-promoting-rhizobacteria is well documented and effective. Therefore, this review seeks to highlight the potential of plant-growth-promoting rhizobacteria to alleviate the effect of salt and drought in Lessertia frutescens.

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“…Cancer bush is a small, attractive, perennial woody shrub that grows up to 1 m long (Gibson 2011). The striking scarlet flowers have made it a popular ornamental plant (Gibson 2011;Masenya et al 2022). It is also reported to be used by British botanists since the early 1990s due to its phytochemical properties (Haffajee 2002;Street and Prinsloo 2013).…”

mentioning

confidence: 99%

Foliar Application of Moringa Seed Extract Alone or in Combination with Salicylic Acid Enhanced Growth, Bioactive, and Phytohormone Compositions of Cancer Bush Plants under Heat Stress

Buthelezi,

Mugivhisa,

Gololo

2024

horts

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Cancer bush (Lessertia frutescens L.) is an important medicinal plant that is rich in health beneficial compounds. It is commonly used in traditional medicine and as an ornamental plant. Heat stress is the most threatening abiotic factor restricting plant growth, thus causing crop yield and economic losses worldwide. The application of plant-derived biostimulant is as an innovative and promising approach for improving plant growth and productivity. The study was aimed to investigate the effect of moringa (Moringa oleifera Lam.) seed extract (MSE; 5%) either alone or in combination with salicylic acid (SA; 40 mg/L) on the growth, bioactive, and phytohormone attributes of cancer plants subjected to heat stress (38 °C for 2 hours for 5 days). Plants that were not treated were used as control. Plant pots were arranged in a randomized complete block design (RCBD) for treatments (MSE, SA, and MSE + SA) at 7-day intervals during the experiment. Both MSE and MSE + SA foliar application effectively increased plant growth characteristics and total carotenoids contents, and reduced electrolyte leakage and had no symptoms of wilting compared with SA and control. Plants treated with MSE showed higher number of branches and concentrations of abscisic acid (ABA), jasmonic acid (JA), and indole-3-acetic acid (IAA), and lower superoxide and hydrogen peroxide compared with other treatments and control. Also, plants treated with MSE + SA showed higher total chlorophylls and glutathione concentrations compared with other treatments and control. Overall, the application of MSE either alone or in combination with SA enhanced plant growth and productivity of heat-stressed cancer bush plants.

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Efficacy of rhizobia strains on growth and chemical composition of cancer bush ( Sutherlandia frutescens )

Cited by 4 publications

References 16 publications

Bioprospecting for Rhizobacteria with the Ability to Enhance Drought Tolerance in Lessertia frutescens

Bioprospecting for Rhizobacteria with the Ability to Enhance Drought Tolerance in Lessertia frutescens

The Potential of Rhizobacteria to Mitigate Abiotic Stress in Lessertia frutescens

Foliar Application of Moringa Seed Extract Alone or in Combination with Salicylic Acid Enhanced Growth, Bioactive, and Phytohormone Compositions of Cancer Bush Plants under Heat Stress

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