Bouranis Dimitris L, Chorianopoulou Styliani N
Plant Physiology and Morphology Laboratory, Crop Science Department, Agricultural University of Athens, 11855 Athens, Greece.
PlanTerra Institute for Plant Nutrition and Soil Quality, Agricultural University of Athens, 11855 Athens, Greece.
Plants (Basel). 2023 Nov 7;12(22):3794. doi: 10.3390/plants12223794.
Sulfate is taken up from the soil solution by the root system; and inside the plant, it is assimilated to hydrogen sulfide, which in turn is converted to cysteine. Sulfate is also taken up by the leaves, when foliage is sprayed with solutions containing sulfate fertilizers. Moreover, several other sulfur (S)-containing compounds are provided through foliar application, including the S metabolites hydrogen sulfide, glutathione, cysteine, methionine, S-methylmethionine, and lipoic acid. However, S compounds that are not metabolites, such as thiourea and lignosulfonates, along with dimethyl sulfoxide and S-containing adjuvants, are provided by foliar application-these are the S-containing agrochemicals. In this review, we elaborate on the fate of these compounds after spraying foliage and on the rationale and the efficiency of such foliar applications. The foliar application of S-compounds in various combinations is an emerging area of agricultural usefulness. In the agricultural practice, the S-containing compounds are not applied alone in spray solutions and the need for proper combinations is of prime importance.
硫酸根离子由根系从土壤溶液中吸收；在植物体内，它被同化为硫化氢，而硫化氢又会转化为半胱氨酸。当用含硫酸根肥料的溶液对叶片进行喷施时，叶片也会吸收硫酸根离子。此外，通过叶面喷施还可提供其他几种含硫（S）化合物，包括含硫代谢物硫化氢、谷胱甘肽、半胱氨酸、蛋氨酸、S-甲基蛋氨酸和硫辛酸。然而，非代谢性含硫化合物，如硫脲和木质素磺酸盐，以及二甲基亚砜和含硫助剂，则是通过叶面喷施提供的——这些都是含硫农用化学品。在本综述中，我们详细阐述了这些化合物喷施到叶片上后的去向，以及这种叶面喷施的原理和效率。以各种组合形式进行含硫化合物的叶面喷施是农业应用中一个新兴领域。在农业实践中，含硫化合物并非单独应用于喷雾溶液中，合适的组合至关重要。
