Effects of Dark Septate Endophytes Strain A024 on Damping-off Biocontrol, Plant Growth and the Rhizosphere Soil Enviroment of Pinus sylvestris var. mongolica Annual Seedlings

Deng, Xun; Song, Xiaoshuang; Halifu, Saiyaremu; Yu, Wenjing; Song, Ruiqing

doi:10.3390/plants9070913

Cited by 20 publications

(8 citation statements)

References 50 publications

(51 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The distribution range of DSEs includes more than 600 species of plants from 114 families and 320 genera (Liu et al 2009). DSEs play a vital role in promoting plant growth, improving mineral absorption and biological disease control, and enhancing plant stress resistance (Deng et al 2020). By secreting organic acids or enzymes, DSEs decompose the organic substances in the soil that cannot be directly absorbed and utilized by plants (such as nitrogen, phosphorus and other substances) into forms that can be absorbed and utilized by plants to improve the utilization e ciency of plants for organic substances in the soil and promote the growth and development of plants (Newsham 2011).…”

Section: Introductionmentioning

confidence: 99%

WITHDRAWN: Effects of phosphorus-dissolving Dark septate endophytes fungi on the growth of blueberry

Luo

Shang

et al. 2022

Preprint

View full text Add to dashboard Cite

Dark septate endophytes (DSEs) and Phosphate-solubilizing fungi (PSFs) are widely distributed and have important application value in improving plant growth. However, the effects of DSE fungi with phosphate-solubilizing ability on host plants need further study. In this study, phosphorus-dissolving DSE fungi were screened for growth-promoting effects. We isolated, identified and characterized three DSE fungal species (Thozetella neonivea, Pezicula ericae and Hyaloscyphaceae sp.) showing phosphate-solubilizing ability. The impact of three single or dual inoculations of DSEs on blueberry plant characteristics was studied. Their effects on colonization intensity, biomass in seedlings, nutrients in plants and soil, and activities of plant resistance enzymes and soil enzymes were remarkably upregulated relative to the control (p < 0.05). The available phosphorus and acid phosphatase in different combinations were significantly increased. These findings indicate that the application of three DSEs may be valuable to facilitate the cultivation of blueberry with a higher biomass and improved plant quality.

show abstract

Section: Introductionmentioning

confidence: 99%

WITHDRAWN: Effects of phosphorus-dissolving Dark septate endophytes fungi on the growth of blueberry

Luo

Shang

et al. 2022

Preprint

View full text Add to dashboard Cite

show abstract

“…At the same time, the increase in the proline content of Ac-inoculated A. ordosica was significantly higher than that of the control under drought conditions. Previous studies have also found that inoculation of fungi can increase the accumulation of osmotic adjustment substances and reduce the osmotic potential of host cells, so as to resist dehydration injury caused by stress [ 102 , 103 , 104 ]. This is in accordance with a recent study by He et al [ 65 ], who found that A. vagum can enhance the drought tolerance of the host plant Astragalus mongholicus .…”

Section: Discussionmentioning

confidence: 99%

Improved Tolerance of Artemisia ordosica to Drought Stress via Dark Septate Endophyte (DSE) Symbiosis

Zhang

et al. 2022

JoF

View full text Add to dashboard Cite

Dark septate endophytes (DSEs) usually colonize plant roots, especially in stress environments. However, their relationship with plants ranges from beneficial to harmful and has remained largely uncharacterized. In the present study, 14 DSE species grouped into 11 genera were isolated from the roots of a desert plant, Artemisia ordosica, which is widely distributed in northwest China. Three dominant DSE species—Paraphoma chrysanthemicola (Pc), Alternaria chartarum (Ac), and Acrocalymma vagum (Av)—were selected and tested for their resistance to drought in vitro. Furthermore, we characterized the responses of A. ordosica under drought conditions in relation to the presence of these DSEs following inoculation. The results showed that all three strains grew well under in vitro drought stress, and the biomass of Ac and Av was significantly higher than that of the unstressed control. The effects of DSE inoculation on the growth of A. ordosica under drought stress varied according to the different DSE species but were generally beneficial. Under drought stress, Av and Pc promoted plant growth, antioxidant enzyme activity, and root development of the hosts. The Ac strain conferred obvious positive effects on the antioxidant enzyme activity of the hosts. In general, Av and Pc demonstrated better application potential for improving the drought resistance of A. ordosica.

show abstract

“…Numerous studies have investigated the important role of endophytic fungi in enhancing plant growth and tolerance under abiotic stress. DSE play a role in growth promotion and nutrient uptake in plants as they are rich in plant cell wall‐degrading enzymes, which can degrade complex organic substrates (Knapp et al 2018; Deng et al 2020). The colonization of host plants by DSE assists plants in the uptake of nutrients in nutrient‐deficient soils and increases the tolerance of plants in stressful environments (Vergara et al, 2017).…”

Section: Discussionmentioning

confidence: 99%

Dark septate endophyte inoculation enhances antioxidant activity in Astragalus membranaceus var. mongholicus under heat stress

Bi,

Xue

2023

Physiologia Plantarum

View full text Add to dashboard Cite

The influence of dark septate endophytic (DSE) on the antioxidant activity of Astragalus membranaceus var. mongholicus under heat stress was investigated. A. membranaceus plants, with or without DSE inoculation, were grown at 28°C for 8 weeks in a greenhouse and subsequently subjected to heat stress conditions (42°C) in an artificial climate chamber. DSE inoculation significantly decreased the malondialdehyde (MDA) content during the initial three days of heat stress. The activities of superoxide dismutase (SOD) and peroxidase (POD) of A. membranaceus leaves were significantly enhanced by DSE inoculation under heat stress, with SOD activities being 63–81% higher than in other treatments. The glutathione (GSH) and putrescine (Put) contents accumulated significantly on the third day under heat stress with DSE inoculation. Additionally, the contents of soluble sugars and proline (Pro) exhibited significant increases on the seventh day of heat stress and were 33–55% and 81–83% higher than in other treatments, respectively. Three‐way ANOVA shows that DSE inoculation under heat stress exerted a significant impact on MDA. Multivariate linear regression and structural equality modelling (SEM) further show that the interaction among these antioxidants significantly decreased MDA content and maintained the normal function of cell membranes. In conclusion, DSE inoculation enhanced the heat tolerance of A. membranaceus by boosting its antioxidant capacity and reducing MDA production. This study highlights the potential of utilizing DSE as a strategy to enhance plant heat tolerance.

show abstract

Effects of Dark Septate Endophytes Strain A024 on Damping-off Biocontrol, Plant Growth and the Rhizosphere Soil Enviroment of Pinus sylvestris var. mongolica Annual Seedlings

Cited by 20 publications

References 50 publications

WITHDRAWN: Effects of phosphorus-dissolving Dark septate endophytes fungi on the growth of blueberry

WITHDRAWN: Effects of phosphorus-dissolving Dark septate endophytes fungi on the growth of blueberry

Improved Tolerance of Artemisia ordosica to Drought Stress via Dark Septate Endophyte (DSE) Symbiosis

Dark septate endophyte inoculation enhances antioxidant activity in Astragalus membranaceus var. mongholicus under heat stress

Contact Info

Product

Resources

About