Lata R, Chowdhury S, Gond S K, White J F
Department of Botany, MMV, Banaras Hindu University, Varanasi, India.
Department of Plant Biology, Rutgers University, New Brunswick, NJ, USA.
Lett Appl Microbiol. 2018 Apr;66(4):268-276. doi: 10.1111/lam.12855. Epub 2018 Feb 26.
Endophytes are micro-organisms including bacteria and fungi that survive within healthy plant tissues and promote plant growth under stress. This review focuses on the potential of endophytic microbes that induce abiotic stress tolerance in plants. How endophytes promote plant growth under stressful conditions, like drought and heat, high salinity and poor nutrient availability will be discussed. The molecular mechanisms for increasing stress tolerance in plants by endophytes include induction of plant stress genes as well as biomolecules like reactive oxygen species scavengers. This review may help in the development of biotechnological applications of endophytic microbes in plant growth promotion and crop improvement under abiotic stress conditions.
Increasing human populations demand more crop yield for food security while crop production is adversely affected by abiotic stresses like drought, salinity and high temperature. Development of stress tolerance in plants is a strategy to cope with the negative effects of adverse environmental conditions. Endophytes are well recognized for plant growth promotion and production of natural compounds. The property of endophytes to induce stress tolerance in plants can be applied to increase crop yields. With this review, we intend to promote application of endophytes in biotechnology and genetic engineering for the development of stress-tolerant plants.
内生菌是包括细菌和真菌在内的微生物，它们在健康植物组织内生存，并在胁迫条件下促进植物生长。本综述聚焦于诱导植物非生物胁迫耐受性的内生微生物的潜力。将讨论内生菌如何在干旱、高温、高盐度和养分供应不足等胁迫条件下促进植物生长。内生菌提高植物胁迫耐受性的分子机制包括诱导植物胁迫基因以及活性氧清除剂等生物分子。本综述可能有助于开发内生微生物在非生物胁迫条件下促进植物生长和作物改良方面的生物技术应用。
不断增长的人口为保障粮食安全需要更多的作物产量，而作物生产受到干旱、盐度和高温等非生物胁迫的不利影响。培育植物的胁迫耐受性是应对不利环境条件负面影响的一种策略。内生菌因促进植物生长和产生天然化合物而广为人知。内生菌诱导植物胁迫耐受性的特性可用于提高作物产量。通过本综述，我们旨在促进内生菌在生物技术和基因工程中的应用，以培育耐胁迫植物。
