Bueno Milagros, Cordovilla María Del Pilar
Plant Physiology Laboratory, Department Animal Biology, Plant Biology and Ecology, Faculty of Experimental Science, University of Jaén, Paraje Las Lagunillas, E-23071 Jaén, Spain.
Center for Advances Studies in Olive Grove and Olive Oils, Faculty of Experimental Science, University of Jaén, Paraje Las Lagunillas, E-23071 Jaén, Spain.
Plants (Basel). 2021 Sep 10;10(9):1872. doi: 10.3390/plants10091872.
Climate change, soil salinisation and desertification, intensive agriculture and the poor quality of irrigation water all create serious problems for the agriculture that supplies the world with food. Halophyte cultivation could constitute an alternative to glycophytic cultures and help resolve these issues. can be used in biosaline agriculture as it tolerates salt concentrations of 100 mM NaCl. To increase the salt tolerance of this plant, plant growth regulators such as polyamine spermidine, salicylic acid, gibberellins, cytokinins, and auxins were added in a hydroponic culture before the irrigation of NaCl (200 mM). In 45-day-old plants, dry weight, water content, osmolyte (sorbitol), antioxidants (phenols, flavonoids), polyamines (putrescine, spermidine, spermine (free, bound, and conjugated forms)) and ethylene were determined. In non-saline conditions, all plant regulators improved growth while in plants treated with salt, spermidine application was the most effective in improving growth, osmolyte accumulation (43%) and an increase of antioxidants (24%) in . The pretreatments that increase the sorbitol content, endogenous amines (bound spermine fraction), phenols and flavonoids may be the most effective in protecting to against stress and, therefore, could contribute to improving the tolerance to salinity and increase nutritional quality of .
气候变化、土壤盐碱化和荒漠化、集约化农业以及灌溉水质量差，都给为世界提供粮食的农业带来了严重问题。盐生植物种植可以作为甜土植物种植的替代方案，有助于解决这些问题。[此处原文可能缺失主语，根据语境推测可能是某种植物]可用于生物盐碱农业，因为它能耐受100 mM NaCl的盐浓度。为提高这种植物的耐盐性，在浇灌200 mM NaCl之前，在水培中添加了植物生长调节剂，如多胺亚精胺、水杨酸、赤霉素、细胞分裂素和生长素。对45日龄的植株测定了干重、含水量、渗透调节剂（山梨醇）、抗氧化剂（酚类、黄酮类）、多胺（腐胺、亚精胺、精胺（游离、结合和共轭形式））和乙烯。在非盐碱条件下，所有植物调节剂都促进了生长，而在盐处理的植株中，施用亚精胺对促进生长、渗透调节剂积累（43%）和抗氧化剂增加（24%）最为有效。增加山梨醇含量、内源性胺（结合精胺部分）、酚类和黄酮类的预处理可能对保护[此处原文可能缺失宾语，根据语境推测可能是某种植物]免受胁迫最有效，因此可能有助于提高其耐盐性并提高[此处原文可能缺失宾语，根据语境推测可能是某种植物]的营养品质。
