Crown decline and mortality associated with collar lesions were observed on (Chinese hickory) trees in a plantation in Zhejiang province, China. Examination of active lesions resulted in the isolation of a homothallic, papillate sp. Detailed morphological and physiological studies and phylogenetic analysis, using ITS, beta-tubulin, cytochrome oxidase I, and heat shock protein 90 gene regions, revealed that all isolates belonged to an undescribed species residing in phylogenetic Clade 4, which is described here as . Inoculation trials were conducted under greenhouse conditions on and (pecan) plants to fulfill Koch postulates and hypothesize a possible pathway of the incursion. An existing report of a species with the same ITS sequence was reported on from the USA in 2009. The difference in susceptibility of the two inoculated species, and the report from the USA, suggest a possible introduction with plant material from the USA to China. Morales-Rodríguez C, Wang Y, Martignoni D, Vannini A (2020). , a new species pathogenic to Chinese Hickory () in southeast China. 99-111. doi: 10.3114/fuse.2021.07.05.
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http://dx.doi.org/10.3114/fuse.2021.07.05 | DOI Listing |
Plant Physiol Biochem
December 2024
State Key Laboratory of Subtropical Silviculture, Zhejiang A&F University, Hangzhou, Zhejiang, 311300, China; Zhejiang Provincial Key Laboratory of Forest Aromatic Plants-based Healthcare Functions, Zhejiang A&F University, Hangzhou, Zhejiang, 311300, China. Electronic address:
Manganese (Mn) is an essential element for plant growth but can be toxic at high levels. Pecan (Carya illinoensis), an important nut-producing species, has been observed to exhibit tolerance to high Mn levels. In this study, pecan seedlings were exposed to a nutrient solution containing either 2 μM (control) or 1000 μM (excess) MnSO to investigate the physiological mechanisms.
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March 2025
State Key Laboratory of Environmental and Biological Analysis, Department of Chemistry, Hong Kong Baptist University, Hong Kong 999077, China; Eastern Institute of Technology, Ningbo 315100, China. Electronic address:
Pecan (Carya illinoinensis) is a globally important nut crop, yet the processes of lipid biosynthesis and spatial lipid distribution within its embryo remain poorly understood. This study employed UHPLC-MS/MS and MALDI-MSI to profile lipids in developing pecan embryos, identifying 401 lipid molecules, including a high abundance of glycerolipids (148) and glycerophospholipids (144). Differential diacylglycerols showed gradual uptrends, highlighting their role in synthesizing glycerolipids and glycerophospholipids.
View Article and Find Full Text PDFFront Plant Sci
November 2024
State Key Laboratory of Subtropical Silviculture, Zhejiang A&F University, Hangzhou, China.
Huan Jing Ke Xue
November 2024
College of Environmental and Resources Sciences, College of Carbon Neutrality, Zhejiang A&F University, Hangzhou 311300, China.
Due to the aggravation of atmospheric nitrogen and sulfur deposition and the unreasonable application of fertilizer, soil acidification is becoming increasingly serious. In heavy metal-contaminated soils, acidification not only seriously affects fertility but also the effectiveness and sustainability of conventional passivation remediation materials such as biochar. The application of calcium fertilizer may improve soil acidification, alleviate the aging of biochar materials in soil, and improve its remediation ability to composite polluted soil.
View Article and Find Full Text PDFSci Rep
November 2024
Institute of Botany, Jiangsu Province and Chinese Academy of Sciences (Nanjing Botanical Garden Mem. Sun Yat-Sen), Nanjing, 210014, China.
Carya illinoinensis is an economically important nut tree, and its chloroplast (cp.) genome has been reported; however, its mitochondrial (mt) genome remains unknown. In the present study, we assembled the first mt genome of C.
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