Bouranis Dimitris L, Malagoli Mario, Avice Jean-Christophe, Bloem Elke
Plant Physiology Laboratory, Crop Science Department, Agricultural University of Athens, Iera Odos 75, 11855 Athens, Greece.
Department of Agronomy, Food, Natural Resources, Animals and Environment, University of Padova, Agripolis, 35020 Legnaro Pd, Italy.
Plants (Basel). 2020 Feb 17;9(2):256. doi: 10.3390/plants9020256.
As an essential nutrient required for plant growth and development, sulfur (S) deficiency in productive systems limits yield and quality. This special issue hosts a collection of original research articles, mainly based on contributions from the 11th International Plant Sulfur Workshop held on 16-20 September 2018 in Conegliano, Italy, focusing on the following topics: (1) The germinative and post-germinative behaviour of seeds when severe S limitation is applied to the parent plants; (2) the independence of S deficiency from the mRNA degradation initiation enzyme PARN in Arabidopsis; (3) the glucosinolate distribution in the aerial parts of sel1-10, a disruption mutant of the sulfate transporter SULTR1;2, in mature plants; (4) the accumulation of S-methylcysteine as its γ-glutamyl dipeptide in ; and (5) the role of ferric iron chelation-strategy components in the leaves and roots of maize, have provided new insights into the effect of S availability on plant functionality. Moreover, the role of S deficiency in root system functionality has been highlighted, focusing on (6) the contribution of root hair development to sulfate uptake in Arabidopsis, and (7) the modulation of lateral root development by the CLE-CLAVATA1 signaling pathway under S deficiency. The role of S in plants grown under drought conditions has been investigated in more detail focusing (8) on the relationship between S-induced stomata closure and the canonical ABA signal transduction machinery. Furthermore, (9) the assessment of S deficiency under field conditions by single measurements of sulfur, chloride, and phosphorus in mature leaves, (10) the effect of fertilizers enriched with elemental S on durum wheat yield, and (11,12) the impact of elemental S on the rhizospheric bacteria of durum wheat contributed to enhance the scientific knowledge on S nutrition under field conditions.
作为植物生长发育所需的必需营养素，生产系统中硫（S）的缺乏会限制产量和品质。本期特刊收录了一系列原创研究文章，主要基于2018年9月16日至20日在意大利科内利亚诺举行的第11届国际植物硫研讨会上的投稿，重点关注以下主题：（1）当亲本植物受到严重硫限制时种子的萌发及萌发后行为；（2）拟南芥中硫缺乏与mRNA降解起始酶PARN的独立性；（3）硫酸盐转运体SULTR1;2的破坏突变体sel1-10的地上部分中成熟植物硫代葡萄糖苷的分布；（4）S-甲基半胱氨酸以其γ-谷氨酰二肽形式的积累；以及（5）铁螯合策略成分在玉米叶片和根中的作用，这些研究为硫有效性对植物功能的影响提供了新的见解。此外，硫缺乏在根系功能中的作用也得到了强调，重点关注（6）根毛发育对拟南芥硫酸盐吸收的贡献，以及（7）硫缺乏条件下CLE-CLAVATA1信号通路对侧根发育的调节。还更详细地研究了硫在干旱条件下生长的植物中的作用，重点关注（8）硫诱导气孔关闭与经典ABA信号转导机制之间的关系。此外，（9）通过单次测量成熟叶片中的硫、氯和磷来评估田间条件下的硫缺乏，（10）富含元素硫的肥料对硬粒小麦产量的影响，以及（11,12）元素硫对硬粒小麦根际细菌的影响，这些研究有助于增进对田间条件下硫营养的科学认识。
