Pentacyclic Triterpenoids and a Linear Alkane from the Milky Mangrove Tree (Excoecaria agallocha L.) are toxic to the larva of Helicoverpa armigera Hubner.(Lepidoptera:Noctuidae)
Throughout the world, as a part of the Integrated Pest Management (IPM), botanicals are evaluated for its efficacy against the polyphagous Pink Bollworm Helicoverpa armigera armigera Hubner. In our present study, hexane extract of the dry leaves of the milky mangrove tree Excoecaria agallocha L. exhibited dose-dependent growth inhibition of late 2nd...
Biodegradation of Pesticidal Residue Using Traditional Plants with Medicinal Properties and Trichoderma
The indiscriminate use of pesticides to control major pests and diseases has led to several adverse consequences and deepened agrarian distress, polluted the environment and created a heavy disturbance in the ecosystem, Ultimately the end users (human and animal beings) are also severely affected. Hence, it is essential to remove these chemo-pollutant from the environment. Biological removal of chemo-pollutants becomes the safest and easiest method. In the present study, some of the traditional...
Evaluation of the genetic diversity and population structure in drumstick (Moringa oleifera L.) using SSR markers
Moringa belongs to the family Moringaceae comprising 13 species of which Moringa oleifera is more widely
cultivated. It is an economically important multipurpose tree with immense nutritional value and
has significant potential to address malnutrition. In the present study, a total of 97 accessions collected
from different districts of Tamil Nadu, Andhra Pradesh and Odisha were genotyped using 20 simple
sequence repeat (SSR) markers to assess the genetic diversity and population structure. A...
Microbial Consortial Products for Sustainable Agriculture: Commercialization and Regulatory Issues in India
Rhizosphere microorganisms directly and indirectly influence the composition and productivity of natural plant communities. Hence, belowground microbial species richness has been proposed as a predictor of aboveground plant diversity and productivity. Though research-based evidences clearly show the advantages of microbial consortia-based products due to their multifunctionality, limited attention is being given to develop quality standards for registration. This chapter focuses on the uses,...
The mycobiont and whole thallus cultures of Bel. were established using soredia as an inoculum.The mycobiont Roccella montagnei cultures showed optimum growth, biomass and biosynthesis of compounds in Lilly and Barnett medium with glucose as a carbon source, micronutrients and vitamins. After the incubation period of 180 days, the cultures were harvested, and their biomass and secondary compound profiles were analysed. The HPTLC chromatogram of the acetone extract of erythrin the NT and...
T-homoeolog specific plasma membrane protein 3 [Nt(t)PMP3-2] in polyploid Nicotiana tabacum shows conserved alternative splicing, derived from extant Nicotiana tomentosiformis parent
Abiotic stress induced plasma membrane protein 3 (PMP3) genes occur as multigene families in plants, coding for hydrophobic proteins. Group I PMP3s code for shorter ORFs while Group II PMP3s code for proteins with C-terminal extensions. Allotetraploid Nicotiana tabacum (SSTT; 2n = 48) derives its parentage from extant ancestors related to Nicotiana sylvestris (SS) and Nicotiana tomentosiformis (TT). Polyploidization triggers complex genetic and epigenetic changes, often leading to homoeolog-...
THREE DECADES OF EXPERIENCE WITH GENETICALLY ENGINEERED CROPS: WAY FORWARD IN THE INDIAN CONTEXT
An important outcome of the elucidation of the double helix structure of DNA is the beginning of the science of genetic engineering. Genetic engineering has made it possible to transfer genes across
sexual barriers. However there are several of environmental, biosafety and other problems associated with the technology. Therefore, we must have a very good mechanism for measuring risks and benefits. The report
submitted to the Government over ten years ago, one of us (MSS) had pointed out that, “...
Sustaining and enhancing crop productivity in an era of climate change
The earth is experiencing a faster change in climate in
the 21st century than it had in the past. Abiotic
stresses such as drought and salinity, exacerbated by
the fast changing climatic conditions pose a major
hurdle in sustaining crop productivity. Developing
crop plants able to yield better under abiotic stresses
offer hope in this situation. Understanding abiotic
stress-tolerance mechanisms in a plant system is crucial
to improve the stress tolerance. The present
review discusses broad...
Characterization of the predominant bacterial population of different mangrove rhizosphere soils using 16S rRNA gene-based single-strand conformation polymorphism (SSCP)
Variations in chemical parameters and bacterial populations in mangrove rhizosphere samples were noted for different sites. The C, N, P and K contents as well as pH, EC and salinity showed variation between sites. Significant differences in soil properties were also found in sampling sites. Two types of soil were noted among sites. Guesthouse had significantly higher organic matter and nutrient content (N) than other three sites suggesting that human discharges, litter deposition and surface...