Antimicrobial and Antifungal Activity of Volatile Extracts of 10 Herb Species against Glomerella cingulata

Abstract

We investigated the antimicrobial activity of volatile extracts from 10 herb species (coriander, oregano, chamomile, sage, thyme, chives, basil, fennel, lavender, and rosemary) against 4 plant pathogens (Botryotinia fuckeliana, Glomerella cingulata, Fusarium oxysporum, and Pectobacterium carotovorum subsp. carotovorum) to develop biological pesticides. We also determined the optimum quantity of each volatile extract for the highest activity against plant pathogens. Among these 10 herb extracts, the volatile extract of coriander leaves and stems exhibited high levels of antimicrobial activity against the 4 plant pathogens tested. The volatile extract prepared from chives also exhibited antifungal activity against B. fuckeliana, G. cingulata, and F. oxysporum, but exhibited no antimicrobial activity against P. carotovorum subsp. carotovorum. In particular, the antifungal activity of the volatile extract of coriander leaves and stems (equivalent to 0.25 g FW) against G. cingulata was higher than that of chemical fungicides. These results indicate that volatile extracts from coriander leaves and stems have high levels of antifungal and antimicrobial activity against plant pathogens.

Genetic Evaluation for Morphological Traits of Coriandrum Sativum Grown Under Salt Stress

“…1). The higher length of root under salt concentration showed that Coriandrum or Coriandrum genotypes showed tolerance against salt stress and tends to improve plant growth and development even under salt stress environment (Gruenwalded, 2004;Ikeura and Kobayashi, 2015;Pandey et al, 2011). The results from all pairwise comparison revealed that there was higher root length of Coriandrum seedlings under the treatment of 1Molar NaCl (26.727cm) followed by 0.6Molar NaCl (24.933cm) and 0.2Molar NaCl (22.080cm) while lowest length of roots in Coriandrum genotypes was found under the application of 0.4Molar NaCl (19.800cm) concentration.…”

Natural bioactive substances for the control of food-borne viruses and contaminants in food

“…For example, sulfur compounds extracted from fresh garlic by-products show significant antimicrobial activity against S. aureus , S. enteritidis , E. coli , B. cereus , and L. monocytogens (Jang et al 2018 ). Organic sulfur compounds extracts from herbs are known to have antimicrobial properties against various bacteria such as Bacillus cereus , Campylobacter jejuni , Clostridium , Escherichia coli , Listeria monocytogenes , Salmonella enterica , Staphylococcus (Ikeura and Koabayashi 2015 ). Both diallyl sulfides, diallyl monosulfide, diallyl disulfide, diallyl trisulfide, and diallyl tetrasulfide extracted from chive oil showed antimicrobial activities (Rattanachaikunsopon and Phumkhachorn 2008 ).…”

A Review of Tropical Plants with Antifungal Activities against Plant Fungal Pathogens

“…Only 10% of the total number of plant species worldwide has been investigated for their pesticides activity. Most of the studies done under in vitro condition indicated that many plant extracts exhibited obvious antifungal activities against plant fungal pathogens in particular inhibited the fungal radial growth, spores formation, spores germination, and biomass formation [10,11,12,13,14,15,16].…”

“…Under natural condition (without artificial inoculation), the shelf-life of the snake fruit could be extended up to 10 days at room temperature when they were treated with extracts of either ginger root or papaya leaves [10]. Other plants have been studied for their antifungal activities in vitro against Fusarium guttiforme and Chalara paradoxa [20], Pyricularia oryzae [11], Botrytis cinerea [12], Glomerella cingulata [13], Fusarium oxysforum [14].…”

“…Extract of Hyssopus officinalis at concentration of 5% completely (100%) inhibited the growth of Botrytis cinerea, the cause of grey mold of more than 230 plant species [12], while on the other study the extract of Coriandrum sativum strongly inhibited the growth of Glomerella cingulata with inhibitory activity by 92.81% [13]. Conidia germination and mycelia growth of Fusarium oxysforum significantly suppressed by the treatment of extracts of 11 different species [14].…”