Showing 3 results for Nagaraju
Praveen Ranadev, Nagaraju K, Vasantha Kumari R,
Volume 0, Issue 0 (ARTICLES IN PRESS 2024)
Abstract
This study evaluated the efficacy of entomopathogenic fungi (EPF) as biocontrol agents against aphids, whiteflies and western flower thrips. The research employed a leaf disc bioassay with various conidia concentrations to determine lethal concentration (LC) and time (LT) for pest eradication. Additionally, the study assessed the activity of cuticle-degrading enzymes produced by EPF (Chitinase, Protease, and Lipase) to understand their pathogenic mechanisms. Molecular identification using ITS region of 18S rDNA identified virulent isolates. Results indicated that four isolates, ENPF-16, 24, 41, and 60, achieved significant mortality rates (95% to 100%) at a concentration of 1x108 conidia/mL after nine days. Akanthomyces sp. (ENPF-41) exhibited the highest enzyme activity, followed by Beauveria sp. (ENPF-60). The virulent fungal isolates were identified as Beauveria bassiana and Akanthomyces lecanii. Among EPFs, Akanthomyces lecanii (MT997935) displayed greater virulence against all three test insects with lower LC50 and LT50 values compared to other EPFs. In summary, all fungal isolates induced mortality in the tested pests, but their effectiveness varied. Akanthomyces lecanii (MT997935) emerged as a promising biocontrol candidate due to its broad host range and strong virulence.
Volume 12, Issue 3 (Summer 2024)
Abstract
Aims: The abdominal muscles are significantly stretched during pregnancy, leading to an increase in inter-recti distance. Several physiological changes greatly impact women’s musculoskeletal systems. The abrupt drop in muscle strength caused by activity is known as fatigability. This study aimed to investigate the role of different plank positions in enhancing abdominal strength and stability for women recovering from lower-segment cesarean section.
Materials & Methods: This experimental study was conducted on postpartum women based on specific inclusion and exclusion criteria, utilizing the odd-even method and a convenient sampling technique. A total of 30 subjects were allocated into two groups, including the abdominal draw-in maneuver and different plank positions (n=15 per group). The functional evaluation of abdominal muscles in both groups was performed using a pressure biofeedback unit, and the strength of the abdominal muscles was measured with the single leg lift abdominal strength test weekly for six months.
Findings: Statistical analysis of the post-test values indicated the strength and functional activity of the abdominal muscles in postnatal women who underwent lower-segment cesarean section. The results showed that the different plank positions group demonstrated greater improvement than the abdominal draw-in maneuver group.
Conclusion: Incorporating varied plank exercises effectively restores core stability and supports a quicker return to daily activities.
P. Ranadev, K. Nagaraju, R. Vasanth Kumari,
Volume 26, Issue 5 (9-2024)
Abstract
Production of high-quality inoculum in sufficient quantities is crucial for biocontrol programs. Entomopathogenic Fungi (EPF) are highly suitable biocontrol agents due to their adaptability, mode of action, persistence, and wide host range. This study aimed to evaluate the suitability of agro-wastes, including sugarcane bagasse, paddy husk, Post Mushroom Substrate (PMS), and sorghum grains with and without 10% molasses fortification, for mass production of four EPF isolates (Cordyceps fumosorosea: MT997932, Beauveria bassiana: MT997933, Akanthomyces lecanii: MT997935, and Hirsutella thompsonii: MT997936) isolated from two agro-climatic zones in Karnataka, India. The study employed solid-state fermentation. Results showed that sorghum grains fortified with 10% molasses had the highest mycelial growth and spore production of all isolates, followed by PMS with 10% molasses (T7). Fortification with molasses positively influenced the growth and spore production of EPF. The results indicated that while sorghum grains were the best choice for mass production, PMS fortified with molasses also had great potential as an alternative substrate.
