Nutritional status, antimicrobial and anti-biofilm activity of Potamogeton nodosus Poir

Abstract

Macrophytes have been approved as a natural resource for nutritional components as well as antibacterial and anti-biofilms agents. In this context the nutritive status and the antimicrobial activity of the Egyptian macrophytes species Potamogeton nodosus have been studied. P. nodosus have approached a high nutritional value which was reflected in lower ash (11.93%) and considerably high organic nutrient level (88.07%). In addition, this plant contains high protein, carbohydrates, potassium and nitrogen contents with very low concentrations of micro-elements (Iron, Manganese, Zinc and Copper) which make it a valuable source for fishes and animals diets. The extracts also revealed a high phenolic and flavonoids contents (19.313 mg/g gallic acid equivalent and 17.885 mg/g rutin respectively). Both antibacterial, and anti-biofilm activity of three solvents, chloroform, methanol and petroleum ether extracts of P. nodosus Poir were tested against Pseudomonas aeruginosa ATCC 27853, and Escherichia coli ATCC 25922.The methanol extract showed the highest antimicrobial and anti-biofilm activity. The findings of this investigation suggested the potential of Potamogeton nodosus as a new supplementary food resource. In addition to the antimicrobial activity of its extracts especially methanol extract, which would have promising applications in this field.

Association Between the Distributions and Chemical Composition of Aquatic Macrophytes and Bacterial Community Structure in Some Irrigation Canals (Rayahs) of the Nile River, Egypt

“…Aquatic weeds are unwanted plants grow naturally in lakes, ponds and other water bodies. They are primary producers that have many ecosystem services, like: structure and functioning of aquatic ecosystems (Zhi et al 2015), improving of water quality (Zhang et al 2016), considered as a base of aquatic food-chains and as good source of food and fodder for humans, aquatic herbivores, fishes and farm animals (Sharshar and Haroon, 2009) and as a source of biologically active substances (Daboor and Haroon, 2012;Haroon and Abdel-Aal, 2016;Haroon and Daboor, 2019). In contrast, they can cause many ecological losses by adversely affecting, irrigation, navigation, public health as well as the fish production.…”

Pistia stratoites’in yaprak ve kök özütlerinin hayvansal gıdalardan izole edilen Enterococcus ve Staphylococcus’ların biyofilmleri üzerine anti-biyofilm etkisinin araştırılması

“…Pistia stratiotes kök ve yaprak özütlerinin anti-biyofilm özelliklerinin belirlenmesi için, güçlü yapışma gösterdiği belirlenen 5 Staphylococcus ve 17 Enterococcus izolatı kullanılarak, biyofilm belirleme için kullanılan yöntem, kuyucuklara son konsantrasyon 500 µg/ml olacak şekilde özüt eklenerek tekrar edilmiştir [7].…”

“…Potamogeton nodosus makrofitinin metanol, kloroform ve petrol eteri çözücüleri kullanılarak mikroplaka yöntemiyle antimikrobiyal ve anti-biyofilm aktiviteleri çalışılmıştır. Çalışmada metanol özütünün en yüksek anti-biyofilm etki gösterdiği belirlenmiştir [7]. Araştırmamızda test ettiğimiz makrofit olan Pistia stratiotes'in biyolojik özelliklerine yönelik çalışmalar bulunmaktadır; Moruff ve ark.…”

“…Taze yaprakları saçkıran hastalığının tedavisinde, özütleri, tüberküloz, sifiliz ve dizanteri tedavisinde kullanılmaktadır [3]. Çeşitli araştırmalarda, bu bitki ve özütlerinin aynı zamanda antidiabetik, diüretik, antioksidan, ağır metal giderici, dekolorize edici, sitotoksik, antikanser, antimikrobiyal, nörofarmakolojik etkilere sahip olduğu gösterilmiştir [4], [5], [6], [7], [8]. Biyofilm, mikroorganizmalar tarafından hücre dışı polimerik malzemelerden oluşturulan bir matrikstir.…”

Qualitative and Quantitative Variability of Flora and Fauna along Rosetta Branch of the River Nile, Egypt

“…Moreover, It is a source of some biologically active substances that have antimicrobial and anti-algal effects. (Fareed et al, 2008;Shaltout et al, 2010;Haroon and Abdel-Al, 2016;Haroon and Daboor, 2019;Haroon, 2020aHaroon, , 2020b. Epiphytic microalgae determine the trophic status of aquatic ecosystems (Cook, 2007).…”