Mishra Sandhya, Keswani Chetan, Abhilash P C, Fraceto Leonardo F, Singh Harikesh Bahadur
Department of Mycology and Plant Pathology, Institute of Agricultural Sciences, Banaras Hindu UniversityVaranasi, India.
Institute of Environment and Sustainable Development, Banaras Hindu UniversityVaranasi, India.
Front Plant Sci. 2017 Apr 4;8:471. doi: 10.3389/fpls.2017.00471. eCollection 2017.
Nanotechnology representing a new frontier in modern agriculture is anticipated to become a major thrust in near future by offering potential applications. This integrating approach, i.e., agri-nanotechnology has great potential to cope with global challenges of food production/security, sustainability and climate change. However, despite the potential benefits of nanotechnology in agriculture so far, their relevance has not reached up to the field conditions. The elevating concerns about fate, transport, bioavailability, nanoparticles toxicity and inappropriateness of regulatory framework limit the complete acceptance and inclination to adopt nanotechnologies in agricultural sector. Moreover, the current research trends lack realistic approach that fail to attain comprehensive knowledge of risk assessment factors and further toxicity of nanoparticles toward agroecosystem components . plant, soil, soil microbiomes after their release into the environment. Hence in the present review we attempt to suggest certain key points to be addressed in the current and future agri-nanotechnology researches on the basis of recognized knowledge gaps with strong recommendation of incorporating biosynthesized nanoparticles to carry out analogous functions. In this perspective, the major points are as follows: (i) Mitigating risk assessment factors (responsible for fate, transport, behavior, bioavailability and toxicity) for alleviating the subsequent toxicity of nanoparticles. (ii) Optimizing permissible level of nanoparticles dose within the safety limits by performing dose dependent studies. (iii) Adopting realistic approach by designing the experiments in natural habitat and avoiding assays for accurate interpretation. (iv) Most importantly, translating environmental friendly and non-toxic biosynthesized nanoparticles from laboratory to field conditions for agricultural benefits.
纳米技术作为现代农业的一个新前沿领域,有望通过提供潜在应用在不久的将来成为一个主要发展方向。这种整合方法,即农业纳米技术,在应对粮食生产/安全、可持续性和气候变化等全球挑战方面具有巨大潜力。然而,尽管纳米技术目前在农业中具有潜在益处,但其相关性尚未在田间条件下得到充分体现。对纳米颗粒的归宿、迁移、生物可利用性、毒性以及监管框架的不完善等问题的日益担忧,限制了农业部门对纳米技术的完全接受和采用意愿。此外,当前的研究趋势缺乏现实方法,未能全面了解风险评估因素以及纳米颗粒释放到环境后对农业生态系统组成部分(植物、土壤、土壤微生物群落)的进一步毒性。因此,在本综述中,我们试图根据已认识到的知识差距,就当前和未来农业纳米技术研究中需要解决的某些关键点提出建议,并强烈推荐纳入生物合成纳米颗粒以发挥类似功能。从这个角度来看,主要要点如下:(i)减轻风险评估因素(负责纳米颗粒的归宿、迁移、行为、生物可利用性和毒性)以减轻纳米颗粒随后的毒性。(ii)通过进行剂量依赖性研究,在安全限度内优化纳米颗粒剂量的允许水平。(iii)通过在自然栖息地设计实验并避免进行不准确解释的试验,采用现实方法。(iv)最重要的是,将环境友好且无毒的生物合成纳米颗粒从实验室转化到田间条件以实现农业效益。