Present experiment was conducted at College of Horticulture, Bengaluru (KA) during year 2017–18 to study the cultural, morphological and biochemical variations among isolates pathogen Alternaria solani, causal agent early blight disease in tomato. The results revealed variation collected from different regions Karnataka state, India with regard colony characteristics viz., colour, mycelial grow...

The novel fungicidal agents 5-(5,5-dimethylbutenolide-3-ethylidene)-2-amino-imidazolinone derivatives, were designed and synthesized in moderate to excellent yields in four steps by αa-hydroxyketone and diketene as raw materials and characterized by HR-ESI-MS and 1H-NMR. The preliminary bioassay showed that some of these compounds, such as 4a, 4e and 5g exhibit 94.9%, 92.8% and 81.4% inhibition...

The occurrence of the iron-reducing phenomenon among some common fungi was studied. Results indicated that (i) the reduction of ferric iron to the ferrous state by fungi seems to be restricted to nitrate reductase-inducible strains such as Actinomucor repens, Alternaria tenuis, Fusarium oxysporum, and F. solani and (ii) the amount of dissolved ferrous iron may be reduced progressively by increa...

Soluble culture extracts of Bipolaris australiensis, B. hawaiiensis, B. spicifera, Exserohilum longirostratum, E. mcginnisii, E. rostratum, and Helminthosporium solani were used to prepare reference antisera in New Zealand White rabbits. The absorbed reference antisera were tested by a microimmunodiffusion method against concentrated culture filtrates prepared from 115 environmental and clinica...

Ceasalpinia bonducella Fleming (Caesalpiniaceae) plant is well known for its medicinal value in Indian Ayurveda. However, more experimental data need to be collected in order to scientifically prove its efficacy. In this regard, the phytochemical screening conducted on various seed extracts of C. bonducella revealed the presence of several bioactive molecules that include oils, sterols, saponin...

Spores of several fungi were examined in an effort to understand the role of RNA in the biochemical events occurring early in germination. RNA synthesis appeared to be an essential requirement for germination in Neurospora crassa and Aspergillus nidulans but not in Alternaria solani and Peronospora tabacina. Gross changes in the relative amounts of the various molecular species of RNA were not ...