Isolation of Fungi from Roots of Parthenium hysterophorus and Desmostachya bipinnata and Antibacterial Activity of Their Root Extracts

Abstract

The present study was conducted to quantify the effects of soil pollutants on soil inhabiting root-associated fungi. Roots of Parthenium hysterophorus (L.) subjected to fungal isolation revealed more diversity in fungal association compared to Desmostachya bipinnata (L.). Aspergillus was found most commonly associated fungi with the roots of both the plants. A total of seven different fungal species were isolated from the two plants. The root extracts of both the plants were found to have antibacterial agents. However, gram negative strains of bacteria were observed least sensitive. It seems that either plants or fungi, on polluted sites have co-adapted themselves in order to survive. Their interdependence is a manifestation of an association that cannot be strictly regarded as symbiotic but leads to an endorsing reciprocity.

Evaluation of Antioxidant and DNA Damage Protection Activity of the Hydroalcoholic Extract ofDesmostachya bipinnataL. Stapf

“…Previous studies on this plant resulted in the isolation of some known coumarins (scopoletin and umbelliferone), amino acids, carbohydrates [ 12 ], flavonoids like kaempferol, quercetin, quercetin-3-glucoside, trycin and trycin-7-glucoside [ 13 , 14 ], sterols [ 15 ], and terpenes [ 16 ]. Pharmacological studies on Desmostachya bipinnata established its antiulcerogenic [ 13 ], analgesic, antipyretic, and anti-inflammatory activities [ 16 , 17 ], antidiarrhoeal activity [ 18 ], antifungal [ 19 , 20 ] and antihelicobacter activities [ 14 ], and antimicrobial activity and antibacterial activity against Staphylococcus aureus, Escherichia coli , and Klebsiella pneumoniae [ 21 ]. A new xanthene (2,6-dihydroxy-7-methoxy-3H-xanthen-3-one) was isolated from the methanolic extract of Desmostachya bipinnata , which was found to inhibit signal transducer and activator of transcription 3 (STAT3) and low-density lipoprotein-oxidation [ 22 ].…”

Mycoflora Associated With Parthenium Hysterophorus L.

“…Mycoflora associated with Parthenium have been reported by some workers ( Kapoor 1967;Patil and Patil 1983;Patil 1985;Rao and Rao 1987;Evans 1987;Hasija et al 1989;Pandey et al, 1990;Kauraw and Chile, 1999 ;Kumar and Singh 2000;Hashmi and Rashid ,2001;Taye et al, 2002;Bhuvaneswari et al, 2008;Aggarwal et al, 2014;Ahamad et al,2017;Thirunarayanan et al, 2021).…”