Department of Biotechnology, GITAM (Deemed to be) University, Visakhapatnam, 530045, India.
Faculty of Engineering and Natural Sciences, Sabanci University, Istanbul, 34956, Turkey.
Planta. 2023 Jun 26;258(2):30. doi: 10.1007/s00425-023-04189-x.
Although sugar beet is a salt- and drought-tolerant crop, high salinity, and water deprivation significantly reduce its yield and growth. Several reports have demonstrated stress tolerance enhancement through stress-mitigating strategies including the exogenous application of osmolytes or metabolites, nanoparticles, seed treatments, breeding salt/drought-tolerant varieties. These approaches would assist in achieving sustainable yields despite global climatic changes. Sugar beet (Beta vulgaris L.) is an economically vital crop for ~ 30% of world sugar production. They also provide essential raw materials for bioethanol, animal fodder, pulp, pectin, and functional food-related industries. Due to fewer irrigation water requirements and shorter regeneration time than sugarcane, beet cultivation is spreading to subtropical climates from temperate climates. However, beet varieties from different geographical locations display different stress tolerance levels. Although sugar beet can endure moderate exposure to various abiotic stresses, including high salinity and drought, prolonged exposure to salt and drought stress causes a significant decrease in crop yield and production. Hence, plant biologists and agronomists have devised several strategies to mitigate the stress-induced damage to sugar beet cultivation. Recently, several studies substantiated that the exogenous application of osmolytes or metabolite substances can help plants overcome injuries induced by salt or drought stress. Furthermore, these compounds likely elicit different physio-biochemical impacts, including improving nutrient/ionic homeostasis, photosynthetic efficiency, strengthening defense response, and water status improvement under various abiotic stress conditions. In the current review, we compiled different stress-mitigating agricultural strategies, prospects, and future experiments that can secure sustainable yields for sugar beets despite high saline or drought conditions.
尽管甜菜是一种耐盐耐旱作物，但高盐度和缺水会显著降低其产量和生长。有几项报告表明，通过减轻压力的策略可以提高其抗逆性，包括施用渗透调节剂或代谢物、纳米颗粒、种子处理、培育耐盐/耐旱品种。这些方法将有助于在全球气候变化的情况下实现可持续的产量。甜菜（Beta vulgaris L.）是全球约 30%糖产量的重要经济作物。它们还是生物乙醇、动物饲料、纸浆、果胶和功能性食品相关产业的重要原料。由于比甘蔗需要更少的灌溉水和更短的再生时间，甜菜的种植正在从温带气候扩展到亚热带气候。然而，不同地理位置的甜菜品种表现出不同的抗逆性水平。尽管甜菜可以耐受各种非生物胁迫，包括高盐度和干旱，但长时间暴露在盐和干旱胁迫下会导致作物产量和生产显著下降。因此，植物生物学家和农学家已经设计了几种策略来减轻甜菜种植中因胁迫引起的损伤。最近，有几项研究证实，施用渗透调节剂或代谢物物质可以帮助植物克服盐胁迫或干旱胁迫引起的伤害。此外，这些化合物可能会引起不同的生理生化影响，包括在各种非生物胁迫条件下改善养分/离子稳态、光合作用效率、增强防御反应和改善水分状况。在本综述中，我们汇总了不同的减轻农业压力的策略、前景和未来的实验，这些策略可以确保在高盐度或干旱条件下，甜菜的可持续产量。
