Elhindi Khalid M, El-Din Ahmed Sharaf, Elgorban Abdallah M
Plant Production Department, College of Food and Agriculture Sciences, King Saud University, P.O. Box 2460, Riyadh 11451, Saudi Arabia; Vegetable and Floriculture Department, Faculty of Agriculture, Mansoura University, Egypt.
Plant Production Department, College of Food and Agriculture Sciences, King Saud University, P.O. Box 2460, Riyadh 11451, Saudi Arabia; Ornamental Plants and Landscape Gardening Research Department, Horticulture Research Institute, Agriculture Research Center, Giza, Egypt.
Saudi J Biol Sci. 2017 Jan;24(1):170-179. doi: 10.1016/j.sjbs.2016.02.010. Epub 2016 Feb 11.
Salinity is one of the serious abiotic stresses adversely affecting the majority of arable lands worldwide, limiting the crop productivity of most of the economically important crops. Sweet basil () plants were grown in a non-saline soil (EC = 0.64 dS m), in low saline soil (EC = 5 dS m), and in a high saline soil (EC = 10 dS m). There were differences between arbuscular mycorrhizal () colonized plants (+AMF) and non-colonized plants (-AMF). Mycorrhiza mitigated the reduction of K, P and Ca uptake due to salinity. The balance between K/Na and between Ca/Na was improved in +AMF plants. Growth enhancement by mycorrhiza was independent from plant phosphorus content under high salinity levels. Different growth parameters, salt stress tolerance and accumulation of proline content were investigated, these results showed that the use of mycorrhizal inoculum (AMF) was able to enhance the productivity of sweet basil plants under salinity conditions. Mycorrhizal inoculation significantly increased chlorophyll content and water use efficiency under salinity stress. The sweet basil plants appeared to have high dependency on AMF which improved plant growth, photosynthetic efficiency, gas exchange and water use efficiency under salinity stress. In this study, there was evidence that colonization with AMF can alleviate the detrimental salinity stress influence on the growth and productivity of sweet basil plants.
盐度是严重的非生物胁迫之一，对全球大部分耕地产生不利影响，限制了大多数经济作物的作物生产力。甜罗勒（）植株种植于非盐渍土壤（电导率=0.64 dS m）、低盐渍土壤（电导率=5 dS m）和高盐渍土壤（电导率=10 dS m）中。丛枝菌根（）定殖植株（+AMF）和非定殖植株（-AMF）之间存在差异。菌根减轻了盐度导致的钾、磷和钙吸收的减少。+AMF植株中钾/钠和钙/钠之间的平衡得到改善。在高盐度水平下，菌根对生长的促进作用与植物磷含量无关。研究了不同的生长参数、耐盐胁迫能力和脯氨酸含量的积累，这些结果表明，使用菌根接种物（AMF）能够提高盐度条件下甜罗勒植株的生产力。菌根接种在盐胁迫下显著提高了叶绿素含量和水分利用效率。甜罗勒植株似乎高度依赖AMF，AMF在盐胁迫下改善了植物生长、光合效率、气体交换和水分利用效率。在本研究中，有证据表明AMF定殖可以减轻盐胁迫对甜罗勒植株生长和生产力的不利影响。
