Del Coco Laura, Migoni Danilo, Girelli Chiara Roberta, Angilè Federica, Scortichini Marco, Fanizzi Francesco Paolo
Department of Biological and Environmental Sciences and Technologies, University of Salento, Prov.le Lecce-Monteroni, I-73100 Lecce, Italy.
Council for Agricultural Research and Economics-Research Centre for Olive, Fruit Trees and Citrus Crops, Via di Fioranello, 52, I-00134 Roma, Italy.
Plants (Basel). 2020 Jun 17;9(6):760. doi: 10.3390/plants9060760.
subsp. is responsible for the "olive quick decline syndrome" (OQDS) in Salento (Apulia). The main epidemiological aspects of the syndrome are related to the pathogen spread and survival in the area, and to the biology of the insect vector. The assessment of the macro and microelements content (i.e., ionome) in soil and leaves could provide basic and useful information. Indeed, knowledge of host ionomic composition and the possibility of its modification could represent a potential tool for the management of diseases caused by . Therefore, soil and leaf ionomes of naturally infected, not infected, and zinc-copper-citric acid biocomplex treated trees of different areas of Apulia and the bordering Basilicata regions were compared. We observed that soil and leaf ionomic composition of olive farms growing in the pathogen-free areas north of the Salento Barletta-Andria-Trani BAT (Apulia) and Potenza PZ (Basilicata, Apulia bordering region) provinces is significantly different from that shown by the infected olive groves of the Salento areas (LE, BR, TA provinces). In particular, a higher content of zinc and copper both in soil and leaves was found in the studied northern areas in comparison to the southern areas. This finding could partly explain the absence of OQDS in those areas. In the infected Salento areas, the leaf ionomic profile resulted as being markedly different for the biocomplex treated compared to the untreated trees. A higher zinc content in leaves characterized treated with respect to untreated trees. On the other hand, among the not-infected trees, -resistant Leccino showed higher manganese content when compared with the higher pathogen sensitive Ogliarola salentina and Cellina di Nardò. According to these results, soil and olive leaf ionome could provide basic information for the epidemiologic study and possible control of subsp. in Apulia.
亚种导致了萨伦托（普利亚大区）的“油橄榄快速衰退综合征”（OQDS）。该综合征的主要流行病学方面与病原体在该地区的传播和存活以及昆虫传播媒介的生物学特性有关。土壤和叶片中大量和微量元素含量（即离子组）的评估可以提供基础且有用的信息。实际上，了解宿主离子组组成及其改变的可能性可能是管理由[病原体名称]引起的疾病的潜在工具。因此，对普利亚不同地区以及接壤的巴西利卡塔地区自然感染、未感染以及经锌 - 铜 - 柠檬酸生物复合物处理的树木的土壤和叶片离子组进行了比较。我们观察到，生长在萨伦托 - 巴列塔 - 安德里亚 - 特拉尼BAT（普利亚）和波坦察PZ（巴西利卡塔，与普利亚接壤地区）省以北无病原体区域的橄榄园的土壤和叶片离子组组成与萨伦托地区（莱切、布林迪西、塔兰托省）受感染的橄榄园显著不同。特别是，与南部地区相比，在研究的北部地区土壤和叶片中的锌和铜含量更高。这一发现可以部分解释这些地区不存在OQDS的原因。在受感染的萨伦托地区，与未处理的树木相比，经生物复合物处理的树木叶片离子组特征明显不同。处理过的树木叶片中锌含量更高。另一方面，在未感染的树木中，抗[病原体名称]的莱基诺品种与对病原体更敏感的奥利亚罗拉·萨伦蒂纳和纳尔多的切利纳品种相比，锰含量更高。根据这些结果，土壤和油橄榄叶片离子组可以为普利亚地区[病原体名称]亚种的流行病学研究和可能的防治提供基础信息。
