Article
Horticulture
Boyang Liu, Yuxing Li, Xiuzhi Zhang, Yutong Liu, Chenlu Liu, Hongtao Wang, Shiying Ren, Fengwang Ma, Wei Liang, Cuiying Li
Summary: The application of exogenous gamma-aminobutyric acid (GABA) can improve apple resistance to Marssonina apple blotch by reducing disease severity and maintaining normal photosynthesis. Additionally, GABA can induce the production of some disease-resistant substances in apple plants, such as salicylic acid and chitinase. Therefore, soil drenching of GABA may be a promising strategy to control the prevalence of Marssonina apple blotch.
SCIENTIA HORTICULTURAE
(2022)
Article
Agronomy
Thomas Woehner, Ofere Francis Emeriewen, Monika Hoefer
Summary: This study identified 15 apple accessions from the Malus germplasm collection in Dresden, Germany that exhibited high resistance to Diplocarpon coronariae. These findings are valuable for future apple breeding programmes and research on resistance to apple blotch.
EUROPEAN JOURNAL OF PLANT PATHOLOGY
(2021)
Article
Plant Sciences
Fatemeh Khodadadi, Phillip L. Martin, Daniel J. Donahue, Kari A. Peter, Srdan G. Acimovic
Summary: Apple orchards in the Mid-Atlantic region of the United States have experienced severe premature defoliation due to apple blotch disease caused by Diplocarpon coronariae. The study investigated the spore dispersal patterns, fungicide efficacy, and host defense-related gene expression to develop effective management practices for apple blotch disease.
Article
Plant Sciences
Clemence Boutry, Anne Bohr, Sascha Buchleither, Mathias Ludwig, Thomas Oberhaensli, Lucius Tamm, Hans-Jakob Schaerer, Pascale Flury
Summary: This study monitored the dispersal of conidia and primary infections of D. coronariae, the causal pathogen of apple blotch disease. The results showed that D. coronariae overwinters in leaf litter and spore dispersal and primary infections occur in late April and early May. Furthermore, buds, bark, and fruit mummies were found to be potential overwintering habitats for D. coronariae in addition to fallen leaves.
Article
Biotechnology & Applied Microbiology
Chuang Mei, Jie Yang, Quanlin Mei, Dongfeng Jia, Peng Yan, Beibei Feng, Aisajan Mamat, Xiaoqing Gong, Qingmei Guan, Ke Mao, Jixun Wang, Fengwang Ma
Summary: Low temperature is the main factor affecting crop yield, quality, and distribution, which hinders the development of the fruit industry. The NAC transcription factor family plays a positive role in regulating plant cold tolerance, and this study reveals the regulatory mechanism of MdNAC104 in apple cold tolerance through CBF-dependent and CBF-independent pathways.
PLANT BIOTECHNOLOGY JOURNAL
(2023)
Article
Agronomy
Camilla Castellar, Felipe Jauch, Rafaele Regina Moreira, Henrique da Silva Silveira Duarte, Louise Larissa May De Mio
Summary: This study developed a standard area diagram set (SADs) to assess apple blotch severity and described the disease progress curve on older and younger leaves. The use of SADs significantly improved accuracy, precision, and reliability of severity estimates. The research provides a tool for apple blotch quantification and describes disease progress under subtropical conditions.
EUROPEAN JOURNAL OF PLANT PATHOLOGY
(2021)
Article
Plant Sciences
Si Eun Park, Seunghyun Ban, A. Reum Han, Seung-Yeol Lee, Cheol Choi
Summary: Apple Marssonina blotch, caused by the fungus Diplocarpon mali (D. mali), is a severe disease that causes early defoliation and reduces fruit quality and tree growth. In this study, genes involved in flavonoid biosynthesis and antioxidant activity were found to play an antifungal role against D. mali by maintaining free radicals and decreasing oxidative damage. The induction of flavonoid biosynthetic genes in the early stage suggests that they are early response genes, while pathogenesis-related (PR) genes were rapidly induced in inoculated leaves when symptoms were visible.
PHYSIOLOGICAL AND MOLECULAR PLANT PATHOLOGY
(2023)
Article
Agronomy
Weichao Ren, Na Liu, Baohua Li
Summary: A rapid detection method using LAMP assay was developed for accurate diagnosis of Marssonina coronaria, a plant pathogen causing apple blotch, with successful application in field samples. This study provides a simple and efficient solution for quick diagnosis of apple blotch disease caused by M. coronaria.
Article
Plant Sciences
Duyue Li, Qiran Sun, Guifen Zhang, Longmei Zhai, Keting Li, Yi Feng, Ting Wu, Xinzhong Zhang, Xuefeng Xu, Yi Wang, Zhenhai Han
Summary: In this study, a kinase MxMPK6-2 from Malus xiaojinensis was identified to be responsive to ROS signals during Fe deficiency stress, and it controlled its response by regulating a transcription factor MxbHLH104.
JOURNAL OF EXPERIMENTAL BOTANY
(2021)
Article
Plant Sciences
Sen Lian, Xiang-Li Dong, Ping-Liang Li, Cai-Xia Wang, Shan-Yue Zhou, Bao-Hua Li
Summary: Apple Marssonina leaf blotch (AMLB; Diplocarpon mali) is a severe disease of apple that causes premature leaf defoliation, with epidemic development closely related to temperature and rainfall. Research shows that an optimum temperature of around 23 degrees Celsius is required for conidium germination and infection. A model was developed to estimate the optimal temperature for conidial infection and the minimum wetness duration needed for disease management in commercial apple production.
Review
Biochemistry & Molecular Biology
Bernhard Huchzermeyer, Ekta Menghani, Pooja Khardia, Ayushi Shilu
Summary: Different types of stress can be classified based on their origin. Reactive oxygen species (ROS) production is a common response to stress. The enzyme-controlled degradation of ROS can be integrated into plant metabolism, contributing to cellular homeostasis and stress tolerance. A better understanding of this process can aid in crop breeding for stress tolerance and modification of crop metabolism for improved quality.
Article
Food Science & Technology
Yujie Du, Jiancheng Sun, Zhonghuan Tian, Yunjiang Cheng, Chao -an Long
Summary: This study investigated the effects of blue light on citrus infected by Geotrichum citri-aurantii and the physiological mechanisms of blue light during postharvest storage. The results showed that blue light induced the production of carotenoids and UV resistance in the pathogen fungus. Additionally, blue light accelerated lipid droplet production and reactive oxygen species burst. The study also found that blue light significantly enhanced the activities of antioxidant enzymes and defense-related enzymes, leading to reduced decay occurrences and improved quality in citrus.
Article
Plant Sciences
Juliette Benejam, Elisa Ravon, Matthieu Gaucher, Marie-Noelle Brisset, Charles-Eric Durel, Laure Perchepied
Summary: The study investigated the potential interaction between genetic and induced resistance in apple against scab and fire blight diseases. They found that ASM was effective in reducing both diseases, and that resistance QTLs and ASM-induced resistance complementarily reduced symptoms by 85% to 100%.
Review
Plant Sciences
Hao Feng, Chengli Wang, Yanting He, Lin Tang, Pengliang Han, Jiahao Liang, Lili Huang
Summary: Apple Valsa canker (AVC) has caused significant losses worldwide, especially in East Asia. This review summarizes the investigation on pathogen species, biological characteristics, infection and pathogenesis, spore dissemination, and disease cycle of AVC, and presents new knowledge on the infection process mediated by various virulence factors. It also introduces progress in evaluating germplasm resources and identifying disease response-related genes in apples, as well as the current understanding of spore dissemination and disease cycles in orchards and disease prevention techniques. Recommendations are provided for developing more cost-effective strategies for controlling AVC by applying genetic resistance and biological fungicides.
PHYTOPATHOLOGY RESEARCH
(2023)
Article
Biochemistry & Molecular Biology
Priyanka Reddy, Tim Plozza, Vilnis Ezernieks, Dario Stefanelli, Alessio Scalisi, Ian Goodwin, Simone Rochfort
Summary: This study identifies the metabolic pathways and plant hormones associated with floral induction in biennial bearing apple cultivars using metabolomics analysis.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2022)
Article
Plant Sciences
Zhengyang Wang, Baiquan Ma, Nanxiang Yang, Ling Jin, Lan Wang, Songya Ma, Yong-Ling Ruan, Fengwang Ma, Mingjun Li
Summary: Fructose content plays a key role in determining fruit sweetness and quality. Research has identified MdSDH2 as a major regulatory gene controlling fructose content in apples, with ABA signaling potentially involved in fructose accumulation in apple fruit.
Article
Horticulture
Baiyun Li, Lingcheng Zhu, Yuru Jin, Yunjing Peng, Zimao Feng, Nanxiang Yang, Fengwang Ma, Baiquan Ma, Mingjun Li
Summary: The study revealed that MdTST1 and MdTST2 play important roles in regulating sugar accumulation in apple fruits, with MdTST1 more related to glucose accumulation and MdTST2 more related to fructose and sucrose accumulation. These findings lay a foundation for understanding the molecular mechanism of sugar accumulation in apple fruit vacuoles, and provide a theoretical basis for improving fruit quality through biotechnological methods.
SCIENTIA HORTICULTURAE
(2022)
Article
Agriculture, Multidisciplinary
Su Jing, Cui Wei-fang, Zhu Ling-cheng, Li Bai-yun, Ma Feng-wang, Li Ming-jun
Summary: This study found that auxin can alter sugar concentrations in plants by regulating the transcript levels of different genes, which in turn affects plant growth and carbohydrate levels. Specifically, in apple trees, MdSUSY1, MdFRK2, MdHxK1/3, and MdSDH2 genes play significant roles in regulating sink strength.
JOURNAL OF INTEGRATIVE AGRICULTURE
(2022)
Article
Plant Sciences
Meng Gao, Haiyan Zhao, Litong Zheng, Lihua Zhang, Yunjing Peng, Wenfang Ma, Rui Tian, Yangyang Yuan, Fengwang Ma, Mingjun Li, Baiquan Ma
Summary: This study identified a key gene, MdMa12, in apples that plays a significant role in determining fruit acidity. The research also uncovered the regulatory effects of mitochondria on apple fruit acidity.
HORTICULTURE RESEARCH
(2022)
Article
Plant Sciences
Xiaoli Zhang, Xiaoqing Gong, Siyuan Cheng, Haixia Yu, Danyang Li, Xinjian Su, Zhaolong Lei, Mingjun Li, Fengwang Ma
Summary: Nitrogen is a main nutrient element that limits plant growth and crop yield. This study found that the expression of MdPRP6, a proline-rich protein, was inhibited under low nitrogen stress. Transgenic apple plants with decreased MdPRP6 expression showed better growth under low nitrogen stress, with increased root development, height, stem diameter, leaf number, biomass, photosynthetic capacity, and nitrogen content. These plants also exhibited more active nitrogen and starch metabolism, as well as higher accumulation of starch, soluble sugar, anthocyanins, and indole acetic acid (IAA) in the roots. Overall, MdPRP6 negatively regulates low nitrogen stress tolerance by modulating anthocyanin accumulation and IAA metabolism in the roots of apple plants.
ENVIRONMENTAL AND EXPERIMENTAL BOTANY
(2022)
Article
Horticulture
Litong Zheng, Wenfang Ma, Jiahui Deng, Yunjing Peng, Rui Tian, Yangyang Yuan, Baiyun Li, Fengwang Ma, Mingjun Li, Baiquan Ma
Summary: The organic acid content is one of the important factors determining fruit quality. In this study, a gene named MdMa13 was identified as a determinant of fruit acidity in apple. Overexpression of MdMa13 led to increased malic acid content in apple calli, tomato, and apples. The expression levels of acid-related genes were also affected in the transgenic apple calli. These findings provide important insights into the molecular regulation of fruit acidity in apples.
SCIENTIA HORTICULTURAE
(2022)
Article
Horticulture
Lingcheng Zhu, Xiaocheng Tian, Yunjing Peng, Jing Su, Baiyun Li, Nanxiang Yang, Fengwang Ma, Mingjun Li
Summary: This study identified 130 sugar transporter genes in the apple genome and analyzed their expression profiles in different tissues and during fruit development. The study also revealed the replication and tandem duplication of sugar transporter genes during apple domestication.
SCIENTIA HORTICULTURAE
(2022)
Article
Plant Sciences
Jing Su, Tiantian Jiao, Xi Liu, Lingcheng Zhu, Baiquan Ma, Fengwang Ma, Mingjun Li
Summary: Fructokinase activates fructose through phosphorylation, but the overexpression of the apple FRK gene MdFRK2 leads to higher fructose levels in transgenic apple fruits. Further analysis reveals an MdCacyBP-MdFRK2 regulatory module that controls fructose homeostasis in different organs by ubiquitination and degradation of MdFRK2. This study provides useful insights into improving apple flavor and understanding plant fructose regulation.
Article
Horticulture
Xiaoli Zhang, Xiaoqing Gong, Haixia Yu, Xinjian Su, Siyuan Cheng, Jingwen Huang, Zhaolong Lei, Mingjun Li, Fengwang Ma
Summary: This study found that suppressing MdPRP6 can enhance the salt tolerance of transgenic apple plants. Inhibiting MdPRP6 can protect the chloroplast structure, reduce the accumulation of reactive oxygen species (ROS) and Na+, and promote the accumulation of compatible osmolytes.
SCIENTIA HORTICULTURAE
(2023)
Article
Biotechnology & Applied Microbiology
Xiao-Li Zhang, Xiao-Qing Gong, Xin-Jian Su, Hai-Xia Yu, Si-Yuan Cheng, Jing-Wen Huang, Dan-Yang Li, Zhao-Long Lei, Ming-jun Li, Feng-wang Ma
Summary: In this study, it was found that MdRAD23D1 and MdPRP6 proteins in apple plants have opposite regulatory roles in drought stress. MdRAD23D1 levels increased under drought condition, accelerating the degradation of MdPRP6, while MdPRP6 negatively regulated drought response by regulating proline accumulation. Therefore, MdRAD23D1 and MdPRP6 together confer drought stress tolerance in apple plants.
PLANT BIOTECHNOLOGY JOURNAL
(2023)
Article
Plant Sciences
Litong Zheng, Liao Liao, Chenbo Duan, Wenfang Ma, Yunjing Peng, Yangyang Yuan, Yuepeng Han, Fengwang Ma, Mingjun Li, Baiquan Ma
Summary: A candidate gene MdMYB123 related to fruit acidity was identified from a comparative transcriptome study of two apple varieties with different malic acid content. A SNP A->T was found in this gene, which was significantly associated with fruit malic acid content. Overexpression of MdMYB123 and mdmyb123 in transgenic apple plantlets showed differential regulation of two genes MdMa1 and MdMa11, which resulted in variation in malic acid content.
Article
Plant Sciences
Jing Yuan, Xi Wang, Shengtao Qu, Tian Shen, Mingjun Li, Lingcheng Zhu
Summary: This review summarizes the functions of miR156 or miR156-SPL module in plant responses to abiotic and biotic stresses, highlighting the important role of miRNAs in plant stress tolerance.
PLANT PHYSIOLOGY AND BIOCHEMISTRY
(2023)
Article
Biochemistry & Molecular Biology
Haiyan Zhao, Shuyuan Wan, Yanni Huang, Xiaoqiang Li, Tiantian Jiao, Zhijun Zhang, Baiquan Ma, Lingcheng Zhu, Fengwang Ma, Mingjun Li
Summary: In this study, a transcription factor MdBPC2 was identified in apple, which negatively regulated auxin biosynthesis. MdBPC2 directly bound to the promoters of auxin synthesis genes and inhibited their transcription, leading to reduced auxin accumulation. MdBPC2 interacted with LHP1 protein to regulate auxin biosynthesis through H3K27me3 modification.
Article
Plant Sciences
Fan Yang, Jiawei Luo, Wenmeng Guo, Yuxin Zhang, Yunxiao Liu, Ze Yu, Yaqiang Sun, Mingjun Li, Fengwang Ma, Tao Zhao
Summary: This study investigates the origin and evolutionary dynamics of SOT genes in the Rosaceae family by analyzing the synteny relationships among PLT genes in various plant lineages. The findings reveal the lineage-specific and synergistic duplications in Amygdaloideae that contribute to the expansion of SOTs in Rosaceae plants.
Article
Plant Sciences
Songya Ma, Huixia Li, Lan Wang, Baiyun Li, Zhengyang Wang, Baiquan Ma, Fengwang Ma, Mingjun Li
Summary: This study revealed that the regulation of ascorbate levels in apple fruit is negatively associated with MdAMR1L1, which promotes the degradation of MdGMP1 to inhibit ascorbate synthesis. Additionally, MdERF98 was found to directly regulate the transcription of MdGMP1 to promote ascorbate synthesis. These findings provide insights into the regulatory mechanisms of ascorbate biosynthesis in apples and potential opportunities for improving fruit ascorbate levels.
Article
Plant Sciences
Sreelekha Duruvasula, Ulaganathan Kandasamy, Sujatha Mulpuri
Summary: The study identified the MLO gene family in the sunflower genome using computational methods, analyzed their chromosomal distribution, gene structure, and phylogenetic relationship, providing a reference for future functional studies. Additionally, the analysis revealed 12 differentially expressed genes between powdery mildew resistant and susceptible sunflower varieties, further contributing to understanding genetic resistance mechanisms in sunflower.
PHYSIOLOGICAL AND MOLECULAR PLANT PATHOLOGY
(2024)
Article
Plant Sciences
Zainul A. Khan, Damini Diksha, Pooja Thapa, Yazing S. Mailem, Susheel K. Sharma, Nitika Gupta, Gopi Kishan, Santosh Watpade, Virendra K. Baranwal
Summary: This study reported the presence of several viruses, including apple rubbery wood virus 1, apple necrotic mosaic virus, citrus virus A, apple stem grooving virus, apple stem pitting virus, apple chlorotic leaf spot virus, in pear trees in India for the first time. The genomes of these viruses were sequenced and analyzed, revealing the expansion of their host range in pear trees. These findings are of great importance for the biological study of pear viruses and virus indexing programs.
PHYSIOLOGICAL AND MOLECULAR PLANT PATHOLOGY
(2024)
Article
Plant Sciences
Xueren Cao, Qiaohui Han, Jonathan S. West
Summary: Spraying double-stranded RNAs (dsRNA) targeting the genes of E. quercicola can effectively control rubber tree powdery mildew and reduce the expression of pathogen genes as well as the severity of the disease.
PHYSIOLOGICAL AND MOLECULAR PLANT PATHOLOGY
(2024)
