Use of Piriformospora indica as Potential Biological Hardening Agent for Endangered Micropropagated Picrorhiza kurroa Royel ex Benth

Das, Aparajita; Tripathi, Swati; Varma, Ajit

doi:10.1007/s40011-015-0656-0

Cited by 8 publications

(3 citation statements)

References 28 publications

(41 reference statements)

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“…Serendipita indica has been praised for its positive effects on a wide variety of plants, including enhanced growth, biomass and yield of agricultural, horticultural and medicinal plants ( Varma et al, 1999 ; Barazani et al, 2005 ; Achatz et al, 2010 ), increased resistance/tolerance to (a)biotic stresses ( Waller et al, 2005 ; Sherameti et al, 2008 ; Rabiey et al, 2015 ; Zhang et al, 2018 ), stimulated adventitious root formation in cuttings ( Druege et al, 2007 ), and improved hardening and acclimatization of micropropagated plantlets ( Das et al, 2017 ). Plants in soil- and agar-based experimental systems have been reported to react to Serendipita inoculation already prior to the establishment of a symbiotic interaction.…”

Section: Discussionmentioning

confidence: 99%

Respiratory CO2 Combined With a Blend of Volatiles Emitted by Endophytic Serendipita Strains Strongly Stimulate Growth of Arabidopsis Implicating Auxin and Cytokinin Signaling

et al. 2020

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Rhizospheric microorganisms can alter plant physiology and morphology in many different ways including through the emission of volatile organic compounds (VOCs). Here we demonstrate that VOCs from beneficial root endophytic Serendipita spp. are able to improve the performance of in vitro grown Arabidopsis seedlings, with an up to 9.3-fold increase in plant biomass. Additional changes in VOC-exposed plants comprised petiole elongation, epidermal cell and leaf area expansion, extension of the lateral root system, enhanced maximum quantum efficiency of photosystem II (F v /F m ), and accumulation of high levels of anthocyanin. Notwithstanding that the magnitude of the effects was highly dependent on the test system and cultivation medium, the volatile blends of each of the examined strains, including the references S. indica and S. williamsii , exhibited comparable plant growth-promoting activities. By combining different approaches, we provide strong evidence that not only fungal respiratory CO 2 accumulating in the headspace, but also other volatile compounds contribute to the observed plant responses. Volatile profiling identified methyl benzoate as the most abundant fungal VOC, released especially by Serendipita cultures that elicit plant growth promotion. However, under our experimental conditions, application of methyl benzoate as a sole volatile did not affect plant performance, suggesting that other compounds are involved or that the mixture of VOCs, rather than single molecules, accounts for the strong plant responses. Using Arabidopsis mutant and reporter lines in some of the major plant hormone signal transduction pathways further revealed the involvement of auxin and cytokinin signaling in Serendipita VOC-induced plant growth modulation. Although we are still far from translating the current knowledge into the implementation of Serendipita VOCs as biofertilizers and phytostimulants, volatile production is a novel mechanism by which sebacinoid fungi can trigger and control biological processes in plants, which might offer opportunities to address agricultural and environmental problems in the future.

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Section: Discussionmentioning

confidence: 99%

Respiratory CO2 Combined With a Blend of Volatiles Emitted by Endophytic Serendipita Strains Strongly Stimulate Growth of Arabidopsis Implicating Auxin and Cytokinin Signaling

et al. 2020

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“…S. indica is now considered a beneficial microorganism that can be used as a bio-fertiliser and bio-protector (Oelmüller et al 2009;Varma et al 2012). Its special role is related to the impact on young plants -cuttings (Druege et al 2007), microplants obtained in vitro Das et al 2017), and seedlings (Dolatabadi, Goltapeh 2013;Gupta et al 2017). S. indica provides plants the opportunity for rapid growth, which leads to the production of a larger biomass and the faster development of generative organs, and, as a consequence, a higher seed yield (Achatz et al 2010;Badge et al 2011).…”

Section: Discussionmentioning

confidence: 99%

Stimulation of ex vitro growth of Rhododendron hybrids 'Nova Zembla' and 'Alfred' by inoculation of roots with Serendipita indica

Trzewik¹,

Orlikowska²,

Kowalczyk³

et al. 2020

Hort. Sci. (Prague)

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Experiments were carried out to study the consequences of inoculating Rhododendron ‘Nova Zembla’ and ‘Alfred’ microcuttings and young plants with Serendipita indica (formerly Piriformospora indica), an endophytic fungus. The inoculation at the in vitro rooting stage decreased the in vitro root and shoot quality, but after planting microplants in a greenhouse in a non-fertilised peat substrate, the plants grew 33% taller, with 10% more leaves and with more abundant roots in comparison with the non-inoculated microplants. The young plants rooted in vitro, acclimated in a greenhouse in a peat substrate and inoculated with S. indica at the time of the transplantation to the pots displayed, after 15 months, an increase in the shoot lengths by 35% and 13%, depending on the cultivar, in the leaf number by 47% and in the chlorophyll content by 31% when compared with the non-inoculated plants. The beneficial effect of S. indica on the young Rhododendron plants indicates the possibility of its practical use in the nursery production of this plant.

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“…P. indica can be used as potential biological hardening agent for endangered micro propagated plants such as Picrorhiza kurroa to improve the survival rate (Das et al, 2017).…”

mentioning

confidence: 99%

Piriformospora indica: a root endophytic fungus and its roles in plants

Liu

Cao

Zou

et al. 2020

Not Bot Horti Agrobo

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Piriformospora indica is a discovered endophytic fungus colonizing in roots of plants in 1998. The fungus can form the mycelium, mycelial roll, and pear-shaped spores in intercellular and intracellular regions of roots. The fungus colonizes various host plants and also realizes the pure culture in vitro without roots of host plants. P. indica shows many positive effects on host plants, including the promotion of plant growth, the enhancement of nutrient acquisition and stress tolerance, the improvement of disease resistance, and the promoted accumulation of bioactive substances. The commercial production of the fungal spores is established in bioreactor with nanostructured materials “zinc oxide” as nano embedded fungus, which provides provides changes into confers. The review simply summarized the biological characteristics of P. indica, physiological roles in plants, and potential utilization as a biofertilizer.

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Use of Piriformospora indica as Potential Biological Hardening Agent for Endangered Micropropagated Picrorhiza kurroa Royel ex Benth

Cited by 8 publications

References 28 publications

Respiratory CO2 Combined With a Blend of Volatiles Emitted by Endophytic Serendipita Strains Strongly Stimulate Growth of Arabidopsis Implicating Auxin and Cytokinin Signaling

Respiratory CO2 Combined With a Blend of Volatiles Emitted by Endophytic Serendipita Strains Strongly Stimulate Growth of Arabidopsis Implicating Auxin and Cytokinin Signaling

Stimulation of ex vitro growth of Rhododendron hybrids 'Nova Zembla' and 'Alfred' by inoculation of roots with Serendipita indica

Piriformospora indica: a root endophytic fungus and its roles in plants

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