Towards Engineering Transgenics Tolerant To Biotic and Abiotic Stresses in Crop Plants - A Review

2 ABSTRACT: Abiotic and biotic stresses namely drought, submergence, salinity, alkalinity, metal toxicity, and insect pests including nematodes, disease causing pathogens including bacteria, viruses, fungi etc., are very difficult to tackle by adopting simple conventional strategies, which are costly, recurrent and eco-offensive. Traditional measures are niche-specific and exhibit tremendous vulnerability to the climactic conditions due to varied intensity of edaphic factors. Keeping this in purview, the present article makes a serious attempt to accumulate the available information and finally come out with a sound strategy by deploying cutting edge science and modern biotechnological approaches paying special attention towards development of large scale cultivation of transgenic crops, which is deemed to be conclusive by halting menaces caused by biotic and abiotic stresses to enhance productivity especially at the interface of global climatic changes, which are amplifying alarmingly, which would lead to acute food and nutritional insecurity which would fail to sustain an livelihood.