Publications by authors named "Lakshmidevi N"

Article Synopsis
  • Chia is a commercially important crop in India, particularly in Karnataka, where a field survey revealed signs of virescence with symptoms affecting 2-4% of the crop in a 30-hectare area.
  • The symptoms included malformed shoots, thickened stems, and reduced floral parts characterized by greenish florets.
  • DNA analysis confirmed the presence of phytoplasma associated with the symptoms, specifically identifying it as Candidatus Phytoplasma aurantifolia with high sequence similarity to other known phytoplasmas.
View Article and Find Full Text PDF

Salvia hispanica L. (Lamiaceae) commonly called 'chia' is an important food crop that has gained significance in recent times globally due to its nutritive value. During a field survey (Mysore district, Karnataka, October, 2021), chia fields were found associated with a characteristic foot rot disease.

View Article and Find Full Text PDF

This article is the 14th in the Fungal Diversity Notes series, wherein we report 98 taxa distributed in two phyla, seven classes, 26 orders and 50 families which are described and illustrated. Taxa in this study were collected from Australia, Brazil, Burkina Faso, Chile, China, Cyprus, Egypt, France, French Guiana, India, Indonesia, Italy, Laos, Mexico, Russia, Sri Lanka, Thailand, and Vietnam. There are 59 new taxa, 39 new hosts and new geographical distributions with one new combination.

View Article and Find Full Text PDF

Zinc oxide nanoparticles have become one of the most popular metal oxide nanoparticles and recently emerged as a promising potential candidate in the fields of optical, electrical, food packaging, and biomedical applications due to their biocompatibility, low toxicity, and low cost. They have a role in cell apoptosis, as they trigger excessive reactive oxygen species (ROS) formation and release zinc ions (Zn) that induce cell death. The zinc oxide nanoparticles synthesized using the plant extracts appear to be simple, safer, sustainable, and more environmentally friendly compared to the physical and chemical routes.

View Article and Find Full Text PDF

The focus of the present study was to characterize antimicrobial peptide produced by potential probiotic cultures of Enterococcus durans DB-1aa (MCC4243), Lactiplantibacillus plantarum Cu2-PM7 (MCC4246) and Limosilactobacillus fermentum Cu3-PM8 (MCC4233) against Staphylococus aureus MTCC 96 and Escherichia coli MTCC118. The growth kinetic assay revealed 24 h of incubation to be optimum for bacteriocin production. The partially purified compound of all the three selected cultures after ion-exchange chromatography was found to be thermoresistant and stable under a wide range of pH.

View Article and Find Full Text PDF

Rhizosphere-resident fungi that are helpful to plants are generally termed as 'plant growth promoting fungi' (PGPF). These fungi are one of the chief sources of the biotic inducers known to give their host plants numerous advantages, and they play a vital role in sustainable agriculture. Today's biggest challenge is to satisfy the rising demand for crop protection and crop yield without harming the natural ecosystem.

View Article and Find Full Text PDF
Article Synopsis
  • Cowpea is a vital pulse crop in arid and semi-arid regions but is susceptible to various diseases, with Dactuliophora sp. identified as the main pathogen causing zonate leaf spot (ZLS) in Karnataka, India.
  • A new species, Dactuliophora mysorensis sp. nov., was described after morphological investigations showed significant differences from D. tarrii, and a three-year study revealed high disease severity peaking from August to November, especially in the Doddamaragowdanahally area.
  • The study found that the systemic fungicides Benomyl and Carbendazim were effective in controlling the ZLS disease, suggesting their use for managing this pathogen.
View Article and Find Full Text PDF

Consumer's vigilance towards health-promoting foods beyond only taste and nutrition has increased the recognition for probiotic products. In the present study, various parameters have been studied to define the probiotic properties of cultures isolated from different fermented products. Around 118 samples were selectively screened for antimicrobial compound (AMC) producing isolates by overlay-plate assay using Micrococcus luteus ATCC9341.

View Article and Find Full Text PDF
Article Synopsis
  • Cowpea, a crucial legume crop in arid regions, is significantly produced in countries like Brazil, Nigeria, and India.
  • Researchers in southern Karnataka observed a leaf spot disease on cowpea plants with symptoms emerging as small circular spots that merged into larger lesions.
  • The fungus causing this disease was identified as Nigrospora sphaerica through laboratory isolation, cultural features, and genetic sequencing of the ribosomal RNA gene.
View Article and Find Full Text PDF

Cowpea is an important pulse crop cultivated in arid and semi-arid regions of the world. During field survey, a characteristic wilt was observed in around 45 ha of cowpea fields with incidence 17-25%. Infection was seen in pre-flowering stage and infected plants showed quick wilt symptoms with tan lesions near the stem-soil interface.

View Article and Find Full Text PDF

Since the discovery and subsequent widespread use of antibiotics, a variety of bacterial species of human and animal origin have developed numerous mechanisms that render bacteria resistant to some, and in certain cases to nearly all antibiotics, thereby limiting the treatment options and compromising effective therapy. In the present study, the green synthesis of nanoparticles is carried out by the reduction of silver acetate in the presence of crude methanolic root extracts of Diospyros paniculata, a member of family Ebenaceae. The UV-Vis absorption spectrum of the biologically reduced reaction mixture showed the surface plasmon peak at 428 nm, a characteristic peak of silver nanoparticles.

View Article and Find Full Text PDF

Context: Cucumis prophetarum Linn. (Cucurbitaceae) fruit is used for inflammatory-related problems and is proved to be possessing anticancer and hepatoprotective effects.

Objective: The present investigation was to study the effect of different fractions of C.

View Article and Find Full Text PDF

Objectives: To investigate the hepatoprotective, antioxidant and antihyperlipidemic effect of N-Trisaccharide isolated from Cucumis prophetarum (L.) on different experimental rats.

Methods: N-Trisaccharide (25 and 50 mg/kg.

View Article and Find Full Text PDF

Ethnopharmacological Relevance: Cucumis prophetarum (L.) is used in traditional Indian medicine for the treatment of inflammation related problems.

Aim Of The Study: The present investigation was designed to study the effect of N-Trisaccharide (a new compound isolated from the fruit of C.

View Article and Find Full Text PDF