Abha Agnihotri’s research while affiliated with Amity University and other places

... Confocal images provided insights into its penetration into plant roots, resembling the behavior of other plant growth-promoting fungal root endophytes [13][14][15][16] . Similar observations were made for other Talaromyces species, highlighting their potential for promoting plant growth and tolerance to various stresses [40][41][42][43][44][45][46][47][48] . Furthermore, T. albobiverticillius HNB9 exhibited additional plant growth-promoting properties, including IAA production, zinc, phosphorus, and silica solubilization. ...

Reference:

Isolation and characterization of a newly discovered plant growth-promoting endophytic fungal strain from the genus Talaromyces

... It also enhances plant resistance to biotic stresses such as bacterial, fungal, viral and nematode diseases and abiotic stresses like heavy metals, salinity and drought (Deshmukh and Kogel, 2007;Sherameti et al., 2008;Daneshkhah et al., 2013;Lakshmipriya et al., 2016;Li et al., 2017;Varkey et al., 2018). Significant increase in growth and yield of many medicinal plant species was recorded on inoculation with P. indica (Rai et al., 2001;Kilam et al., 2016). Several reports have also shown the impact of P. indica inoculation on increasing the secondary metabolite content in plants (Dolatabadi et al., 2011a(Dolatabadi et al., , 2011bSatheesan et al., 2012;Das et al., 2012;Prasad et al., 2013;Sharma and Agrawal, 2013;Sharma et al., 2014;Kilam et al., 2017). ...

Reference:

Root colonization by the endophytic fungus Piriformospora indica improves growth, yield and piperine content in black pepper ( Piper nigurm L.)

... Stevia rebaudiana (Bertoni) is a perennial shrub native to South America, belongs to genus stevia, which comprises different phytochemicals with interesting biological activities, family Asteraceae (Reis Simas et al. 2019;Chac on-Morales et al. 2021). Stevia leaves are characterized by the presence of steviol glycosides which are 300 times sweeter than sucrose (Li et al. 2009;Kilam et al. 2017). Stevioside and rebaudiosides are major components of diterpene glycosides present in stevia leaves. ...

Reference:

UPLC-ESI-MS/MS profiling and hepatoprotective activities of Stevia leaves extract, butanol fraction and stevioside against radiation-induced toxicity in rats

... The results of some researches have proven that inoculation with P. indica by increasing the expression of some genes associated with MEP and MVA biosynthetic pathways such as 1-deoxy-D-xylulose 5-phosphate synthase (DXS), 1-hydroxy-2-methyl-2-(E)-butenyl-4-diphosphate reductase (IDS), 1-Deoxy-D-xylulose5-phosphate reductoisomerase (DXR), increases the medicinal compounds in plants (Schäfer et al., 2009;Nair et al., 2020). Investigation the effect of P. indica inoculation on growth parameters and glycosides of stevia showed that inoculation with the fungus increased growth parameters (plant height, number of leaves, shoot dry weight and root length), the expression of 1-deoxy--D-xylulose 5-phosphate synthase (DXS), Geranylgeranyl diphosphate synthase (GGDPS), Kaurene synthase (KS) and Kaurene oxidase (KO) genes, as well as the amount of glycosides Stevioside and Rebaudioside (Kilam et al., 2017). Plant growth-promoting bacteria, including Pseudomonas, are another group of microorganisms that have the ability to symbiosis with plants and have been used in recent years to moderate the adverse effects of stress (Meena et al., 2017;Rajkumar et al., 2017;Rasouli Sadaghiani et al., 2019). ...

Reference:

Effect of drought stress and inoculation treatments on nutrient uptake, essential oil and expression of genes related to monoterpenes in sage (Salvia officinalis)

... All enzymatic and non-enzymatic antioxidants significantly increased in S. rebaudiana Shou-2 compared with control; a positive effect of PGPB on TPCs in rice has also been described by Chamam, et al. 75 . Furthermore, our finding agreed with the results of TPCs, TFCs, and DPPH in S. rebaudiana due to the combined effect of Piriformospora indica and Azotobacter chroococcum 76 . In comparison to untreated Additionally, the increase of antioxidants may be interpreted by two reasons stimulate the plant's inducible defense mechanisms in the same way pathogenic microorganisms do as a result of hydrolytic enzymes until the plant adapts to bacterial colonization 78 . ...

Reference:

Comparison between bacterial bio-formulations and gibberellic acid effects on Stevia rebaudiana growth and production of steviol glycosides through regulating their encoding genes