To manage nutrient deficiencies, plants develop both morphological and physiological responses. The studies on the regulation of these responses are limited; however, certain hormones and signaling components have been largely implicated. Several studies depicted ethylene as a regulator of the response of some nutrient deficiencies like iron, phosphorous, and potassium. The present study focused on the response of sulfur in the presence and absence of ethylene. The experiments were performed in hydroponic nutrient media, using oilseed rape grown with or without sulfur deficiency and ethylene treatments for 10 days. The ACC oxidase and ACC synthase were observed significantly reduced in sulfur deficient plants treated with ethylene compared to control. The biomass and photosynthetic parameters, including the expression of multicomplex thylakoidal proteins showed a significant increase in sulfur deficient plants supplemented with ethylene. The enzymes related to sulfur regulation like sulfate adenyltransferase, glutamine synthetase, and O-acetylserine (thiol)lyase also showed similar results as shown by the morphological data. The relative expression of the sulfur transporter genes BnSultr1, 1, BnSultr1, 2, BnSultr4,1, BnSultr 4,2, ATP sulfurylase and OASTL increased in sulfur deficient plants whereas, decreased when ethylene was given to the plants. Fe and S nutritional correlations are already known therefore, Fe-transporters like IRT1 and FRO1 were also evaluated, and similar results were observed as in sulfur transporter genes. The overall results indicated that ethylene regulates sulfur acquisition by regulating the expression of sulfur transporter genes in oilseed rape (Brassica napus). This article is protected by copyright. All rights reserved.

中文翻译：

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乙烯通过调节油菜中硫酸盐转运蛋白基因的表达来调节硫的获取

为了管理营养缺乏，植物会产生形态和生理反应。关于调节这些反应的研究是有限的；然而，某些激素和信号成分在很大程度上受到了牵连。几项研究将乙烯描述为某些营养缺乏（如铁、磷和钾）反应的调节剂。本研究侧重于在乙烯存在和不存在下硫的响应。实验在水培营养培养基中进行，使用在缺硫或不缺硫的情况下生长的油菜和乙烯处理 10 天。与对照相比，在用乙烯处理的硫缺乏植物中观察到ACC氧化酶和ACC合酶显着降低。生物量和光合参数，包括多复合体类囊体蛋白的表达显示补充乙烯的硫缺乏植物显着增加。与硫调节相关的酶如硫酸腺苷转移酶、谷氨酰胺合成酶和 O-乙酰丝氨酸（硫醇）裂解酶也显示出类似的结果，如形态学数据所示。硫转运蛋白基因 BnSultr1, 1, BnSultr1, 2, BnSultr4,1, BnSultr 4,2, ATP 硫酸化酶和 OASTL 的相对表达在硫缺乏植物中增加，而当给植物提供乙烯时，则减少。因此，铁和硫的营养相关性是已知的，还评估了铁转运蛋白，如 IRT1 和 FRO1，并观察到与硫转运蛋白基因相似的结果。总体结果表明，乙烯通过调节油菜（Brassica napus）中硫转运蛋白基因的表达来调节硫的获取。本文受版权保护。版权所有。