Arjona-López Juan M, Gmitter Frederick G, Romero-Rodríguez Estefanía, Grosser Jude W, Hervalejo Aurea, López-Herrera Carlos J, Arenas-Arenas Francisco J
Department of Agri-Food Engineering and Technology, Andalusian Institute of Agricultural and Fisheries Research and Training (IFAPA), "Las Torres" Center, Ctra. Sevilla-Cazalla de la Sierra km. 12.2, 41200 Seville, Spain.
Citrus Research and Education Center, Department of Horticultural Sciences, IFAS, University of Florida, Lake Alfred, FL 33850, USA.
Plants (Basel). 2022 Dec 5;11(23):3388. doi: 10.3390/plants11233388.
Citrus is one of the most important fruit crops in Mediterranean countries such as Spain, which is one of the main citrus-producing countries worldwide. Soil-borne pathogens, such as , are relevant limiting biotic factors in fruit trees, due to their tricky management. This fungus is a polyphagous plant pathogen with worldwide distribution, causing white root rot in woody crops, including citrus trees in Spain. The objective of this study was to evaluate the tolerance of new plant material against infection. Therefore, plants of 12 different citrus rootstocks were inoculated with one isolate. During the assay, and periodically, above-ground symptoms and chlorophyll content were evaluated. At the end of the experiment, leaf area and plant biomass measures were obtained. Rootstocks B11R5T64 and B11R5T60 achieved the lowest disease incidence of symptoms and reduction of biomass, and were similar to their respective controls in chlorophyll content and leaf area. Carrizo citrange, CL-5146 and UFR-5 were the most affected rootstocks in symptoms and biomass reduction. This work provides information about -tolerant citrus rootstocks, which can constitute a new integrated, sustainable and effective long-term strategy to avoid white root rot.
柑橘是西班牙等地中海国家最重要的水果作物之一，西班牙是全球主要的柑橘生产国之一。土壤传播的病原体，如[此处原文缺失病原体名称]，因其难以管理，是果树生长过程中重要的限制生物因素。这种真菌是一种分布于全球的多食性植物病原体，会导致包括西班牙柑橘树在内的木本作物发生白根腐病。本研究的目的是评估新型植物材料对[此处原文缺失病原体名称]感染的耐受性。因此，用一种[此处原文缺失病原体名称]分离株对12种不同柑橘砧木的植株进行接种。在试验期间，定期评估地上部分症状和叶绿素含量。实验结束时，测量叶面积和植株生物量。砧木B11R5T64和B11R5T60的症状发病率和生物量减少率最低，叶绿素含量和叶面积与各自的对照相似。卡里佐枳橙、CL - 5146和UFR - 5在症状和生物量减少方面受影响最大。这项工作提供了有关耐[此处原文缺失病原体名称]柑橘砧木的信息，这可以构成一种新的综合、可持续且有效的长期策略来避免白根腐病。
