Article
Biochemistry & Molecular Biology
Peng Jia, Yuan Wang, Rahat Sharif, Xiaolin Ren, Guohui Qi
Summary: This study identified a gene, MdIPT1, homologous to AtIPT3/AtIPT5 in Arabidopsis thaliana, which plays a significant role in flowering and shoot branching in apple trees. MdIPT1 was highly expressed in apple floral and axillary buds and its expression was up-regulated during floral induction and axillary bud outgrowth. Overexpression of MdIPT1 in Arabidopsis resulted in multi-branching and early-flowering phenotype, indicating its positive role in branching and flowering. This research provides valuable insight into the molecular mechanisms involved in apple flowering and branching and contributes to the development of new apple varieties.
Article
Forestry
Daniel A. Edge-Garza, Miguel Villamil-Castro, Dorrie Main, Craig Hardner
Summary: This communication addresses the issue of discrepant ssID information for 78 SNPs on the 8K IRSC apple SNP array and reports the correct NCBI ssIDs for these SNPs in order to accurately aggregate historical SNP data and prevent the perpetuation of misassigned sslDs in further publications.
TREE GENETICS & GENOMES
(2021)
Article
Plant Sciences
Aurita Butkeviciute, Jonas Viskelis, Mindaugas Liaudanskas, Pranas Viskelis, Valdimaras Janulis
Summary: The study found variations in antioxidant activity and composition of phenolic compounds in different apple cultivars stored under different controlled atmosphere conditions, highlighting the importance of determining optimal storage conditions for providing consumers with high-quality apples.
Article
Plant Sciences
Mengmeng Wu, Zhengrong Luo, Shangyin Cao
Summary: MdPG1 encoding polygalacturonase is a key gene related to fruit firmness and texture variations in apple. We identified a SNPA/C variant in the promoter region of MdPG1 and found that the promoter with SNPA could be strongly bound and activated by MdCBF2, while the promoter with SNPC could not. We also discovered a novel long non-coding RNA, lncRNA(PG1), in the promoter of MdPG1, which was a causative variant. Our study provides new insights into the genetic regulation of MdPG1 allele expression and has implications for apple breeding.
Article
Plant Sciences
Canying Li, Jie Zhu, Lei Sun, Yuan Cheng, Jiabao Hou, Yiting Fan, Yonghong Ge
Summary: The study demonstrates that exogenous GABA has significant effects on quality parameters, ethylene anabolism, polyamine metabolism, and GABA shunt in 'Golden Delicious' apples, helping to maintain fruit quality by suppressing unfavorable factors.
PLANT PHYSIOLOGY AND BIOCHEMISTRY
(2021)
Article
Plant Sciences
Y. N. Duan, S. R. Ma, X. S. Chen, X. Shen, C. M. Yin, Z. Q. Mao
Summary: Apple replant disease (ARD) caused by Fusarium proliferatum f. sp. malus domestica (Fpmd) MR5 is a fungal pathogen that leads to annual losses in apple production in China. In this study, the whole-genome sequence of the highly virulent Fpmd MR5 was obtained, revealing potential pathogenicity-related genes and specific virulence factor genes. These findings will contribute to further research on host-pathogen interactions and the development of disease management strategies.
Article
Plant Sciences
Zheng Chen, Jianting Zhang, Liangju Wang
Summary: 5-Aminolevulinic acid (ALA), a plant growth regulator, has been found to regulate the activity of protein phosphatase 2A (PP2A) and promote stomatal opening in apple leaves. The molecular mechanisms underlying this process were investigated, revealing the unique biological functions of three genes involved in ALA-regulated stomatal movement.
FRONTIERS IN PLANT SCIENCE
(2023)
Article
Plant Sciences
Manuel Pramsohler, Edith Lichtenberger, Gilbert Neuner
Summary: The pH of xylem sap in trees undergoes significant changes with the seasons, being acidic in spring and alkaline in winter. While temperature does not have a significant correlation with pHx in apple trees, it is affected by developmental stage. The seasonal alkalization of xylem sap is more pronounced in conifer trees, especially at higher altitudes. The pHx of xylem sap has a negative correlation with soil temperatures and is consistent with previous studies on angiosperm pHx. Overall, pHx appears to be a sensitive stress marker and an indicator of activity status in tree xylem.
Article
Horticulture
Rogerio de Oliveira Anese, Thiago Moreira Monteiro, Gabriela Zooche Pless, Auri Brackmann, Fabio Rodrigo Thewes, Lucas Mallmann Wendt
Summary: The study found that foliar silicon treatment does not reduce decay incidence in 'Galaxy' apples after cold storage, and in some cases, it may even increase decay incidence. The treatment also does not increase physiological disorders in the fruit, but it may enhance ripening metabolism in certain periods.
SCIENTIA HORTICULTURAE
(2022)
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
Horticulture
Alexandra Boini, Gianmarco Bortolotti, Giulio Demetrio Perulli, Melissa Venturi, Alessandro Bonora, Luigi Manfrini, Luca Corelli-Grappadelli
Summary: In highly solar irradiated areas, shading can be used to lower irrigation requirements and make apple production more sustainable. A trial comparing a white exclusion net with rain protection (40% shading) and a regular anti-hail black net (20% shading) on Rosy Glow apple showed that tree physiology was not affected by less light or water, and the more shaded environment resulted in improved marketable yield, fruit color, and soluble solid content even with limited irrigation volume.
Article
Horticulture
Olimpia Alina Iordanescu, Isidora Radulov, Ionut Dascalu, Adina Berbecea, Dorin Camen, Manuela Dora Orboi, Cristian Constantin Calin, Tamara Edina Gal
Summary: Urban horticulture faces challenges in reducing growth vigor, adapting to changing pedoclimatic conditions, and increasing tolerance to diseases and pests for better fruit production. This experiment analyzes the characteristics of 15 old apple varieties grafted on the MM106 rootstock to classify them for planting in limited spaces. The research focuses on the vigor of the scion/rootstock combination, fruit quality, acidity, and resistance to diseases and pests. Results show reduced growth vigor in most varieties, positive effects of grafting and agrotechniques on fruit mass, and variations in sugar content and acidity among the different varieties.
Article
Horticulture
Ashraf Khalifa
Summary: This study isolated and identified a pathogenic bacterium, S. liquefaciens MDK33, from spoiled apple fruit in Al-Ahsa, Saudi Arabia, and confirmed its causative role in apple rot disease. Additionally, oregano essential oil exhibited remarkable antibacterial activity against MDK33, suggesting its potential as a natural preservative.
Article
Plant Sciences
B. P. Khanal, Y. Imoro, Y. H. Chen, J. Straube, M. Knoche
Summary: The study found that surface moisture induces microcracking and decreases water vapor permeance in fruit skins. Early moisture treatment leads to russeting on the fruit surface. While the impaired cuticular barrier can gradually heal, the permeance remains significantly higher compared with the control.
Article
Plant Sciences
Han Jiang, Qi-Jun Ma, Ming-Shuang Zhong, Huai-Na Gao, Yuan-Yuan Li, Yu-Jin Hao
Summary: In this study, MdPAT16 was identified as a key player in mediating salt stress response in apple plants through palmitoylation of target proteins. Overexpression of MdPAT16 improved plant salt stress resistance and promoted the accumulation of soluble sugars. Furthermore, MdPAT16 was shown to interact with MdCBL1 and stabilize its protein levels through palmitoylation, suggesting a potential missing link in the plant salt stress response pathway.
Article
Biochemistry & Molecular Biology
Nan Wang, Zhiyuan Yin, Weiwei Duan, Xiong Zhang, Lei Pi, Yifan Zhang, Daolong Dou
Summary: Phytophthora pathogens may produce SEPs, and SEP1 has been identified as a new virulence factor, indicating that previously unknown SEPs may act as effector proteins in Phytophthora pathogens.
MOLECULAR PLANT-MICROBE INTERACTIONS
(2021)
Article
Biochemistry & Molecular Biology
Lei Pi, Zhiyuan Yin, Weiwei Duan, Nan Wang, Yifan Zhang, Jinghao Wang, Daolong Dou
Summary: The PcEXLX1 protein from Nicotiana benthamiana was found to activate plant immune responses and enhance resistance against Phytophthora capsici. The perception of PcEXLX1 was regulated by the receptor-like kinase ERK1.
JOURNAL OF INTEGRATIVE PLANT BIOLOGY
(2022)
Article
Plant Sciences
Pengliang Han, Rui Li, Qianyu Yue, Fudong Li, Jiajun Nie, Zhiyuan Yin, Ming Xu, Qingmei Guan, Lili Huang
Summary: This study identified MdSRLK3 as a positive regulator of apple resistance against V. mali and revealed its role in regulating resistance through the Ca2+ signaling pathway as well as the H2O2 and callose signaling pathways. These findings are significant for improving apple resistance.
Article
Plant Sciences
Kun Yang, Chao Chen, Yi Wang, Jialu Li, Xiaohua Dong, Yang Cheng, Huanxin Zhang, Ying Zhai, Gan Ai, Qingsong Song, Baojian Wang, Wentao Liu, Zhiyuan Yin, Hao Peng, Danyu Shen, Song Fang, Daolong Dou, Maofeng Jing
Summary: Microbial necrosis and ethylene-inducing peptide 1 (Nep1)-like proteins (NLPs) enhance plant resistance against pathogens and activate plant defense. The necrosis-inducing activity of PyolNLP5 is dependent on specific amino acid residues, while plant resistance activation is independent of necrosis and reactive oxygen species accumulation. Non-cytotoxic PyolNLPs also enhance plant resistance and induce plant defense in a cell death-independent manner.
FRONTIERS IN PLANT SCIENCE
(2022)
Article
Plant Sciences
Nan Wang, Zhiyuan Yin, Yaning Zhao, Zhengpeng Li, Daolong Dou, Lihui Wei
Summary: A study found that the allotetraploid Solanaceae plant Nicotiana benthamiana has two closely related receptor-like proteins (RLPs), NbEIX2 and NbRXEG1, which regulate the recognition of VdEIX3 and PsXEG1. It was also discovered that NbRXEG1 participates in VdEIX3 recognition. Phylogenetic analyses showed that NbEIX2 and NbRXEG1 were obtained from different diploid ancestors by hybridization. This study provides a new model for understanding defense mechanisms in allopolyploid plants.
FRONTIERS IN PLANT SCIENCE
(2022)
Article
Plant Sciences
Nan Wang, Zhiyuan Yin, Yaning Zhao, Jinghao Wang, Yong Pei, Peiyun Ji, Paul Daly, Zhengpeng Li, Daolong Dou, Lihui Wei
Summary: This study reveals a distinct model of NbEIX2 degradation, in which an F-box protein NbPFB1 destabilizes NbEIX2 indirectly in a SOBIR1-dependent manner.
Article
Biochemistry & Molecular Biology
Yifan Zhang, Zhiyuan Yin, Lei Pi, Nan Wang, Jinghao Wang, Hao Peng, Daolong Dou
Summary: In this study, a novel small LRR-RLK regulator NbEIR1 was identified using high-throughput TRV-based gene silencing method, which plays a positive regulatory role in plant immunity by regulating INF1-induced immunity and resistance to P. capsici.
JOURNAL OF INTEGRATIVE PLANT BIOLOGY
(2023)
Article
Plant Sciences
Yumei Dong, Jiangxuan Zhou, Yuxia Yang, Wangshan Lu, Yan Jin, Xingge Huang, Wendan Zhang, Jifen Li, Gan Ai, Zhiyuan Yin, Danyu Shen, Maofeng Jing, Daolong Dou, Ai Xia
Summary: This study reveals that the effector Al106 of Apolygus lucorum suppresses plant immunity and promotes insect feeding by interacting with plant PUB33, which makes it a significant agricultural pest.
Article
Plant Sciences
Wen Song, Zhiyuan Yin, Xinyu Lu, Danyu Shen, Daolong Dou
Summary: This study found that three plant secondary metabolites (citral, carvacrol, and trans-2-decenal) exhibited strong antimicrobial effects against Phytophthora capsici. Citral at a low concentration restricted P. capsici infection in Nicotiana benthamiana but had no effect on mycelial growth. At a high concentration, citral affected mycelial growth, spore germination, and cell membrane permeability. Additionally, citral inhibited the expression of virulence-related genes in P. capsici and regulated the expression of effector genes during the infection process.
MOLECULAR PLANT PATHOLOGY
(2023)
Article
Biochemistry & Molecular Biology
Nan Wang, Zhiyuan Yin, Yingke Wu, Jishuo Yang, Yaning Zhao, Paul Daly, Yong Pei, Dongmei Zhou, Daolong Dou, Lihui Wei
Summary: The oomycete Pythium myriotylum is a necrotrophic pathogen that induces cell death in plants. A small cysteine-rich protein, PmSCR1, was identified and found to trigger immune responses in host plants. PmSCR1 is independent of enzymatic activity and its elicitor function has been shown to promote resistance to Phytophthora sojae and Phytophthora capsici infection.
MOLECULAR PLANT-MICROBE INTERACTIONS
(2023)
Article
Plant Sciences
Lei Pi, Yifan Zhang, Jinghao Wang, Nan Wang, Zhiyuan Yin, Daolong Dou
Summary: In this study, a G-type lectin RLK named NbERK1 was found to enhance plant resistance to the fungal pathogen Sclerotinia sclerotiorum through regulating chitin signaling. The LysM-RLK NbCERK1/NbLYK4 was also shown to positively mediate plant resistance to S. sclerotiorum. These findings highlight the importance of NbERK1 in chitin perception and signaling for plant resistance to fungal pathogens.
PHYTOPATHOLOGY RESEARCH
(2023)
Article
Plant Sciences
Zhiyuan Yin, Qingjie Yang, Danyu Shen, Jinding Liu, Wen Huang, Daolong Dou
Summary: Soybean is an important crop and the newly established SoyTIPdb database provides a valuable resource for researchers to explore structural variations caused by transposon insertions. The database contains processed whole-genome resequencing data from a wide range of soybean germplasm accessions, allowing for easy query and analysis.
Article
Multidisciplinary Sciences
Yong Pei, Peiyun Ji, Jierui Si, Hanqing Zhao, Sicong Zhang, Ruofei Xu, Huijun Qiao, Weiwei Duan, Danyu Shen, Zhiyuan Yin, Daolong Dou
Summary: The study finds that an LRR-RLK from Phytophthora sojae can activate pattern-triggered immunity in host soybean and nonhost tomato and Nicotiana benthamiana plants. This provides a novel microbe-associated molecular pattern for oomycete sexual reproduction and demonstrates a scenario where a pathogen LRR-RLK is sensed by a plant LRR-RLP to initiate plant immunity.
NATURE COMMUNICATIONS
(2023)
Article
Biochemistry & Molecular Biology
Zhiyuan Yin, Danyu Shen, Yaning Zhao, Hao Peng, Jinding Liu, Daolong Dou
Summary: Transmembrane kinases (TMKs) play important roles in cellular signaling. The kinase domains of most metazoan and plant TMKs belong to the S/T/Y-kinase superfamily. TMKs in protists have diverse origins and functional diversity. Despite belonging to different kinase subfamilies, protist LRR and GPCR-type TMKs share similar sensory domain architectures with plant and animal TMKs.
COMPUTATIONAL AND STRUCTURAL BIOTECHNOLOGY JOURNAL
(2023)
Article
Plant Sciences
Xiaohua Dong, Gan Ai, Chuyan Xia, Weiye Pan, Zhiyuan Yin, Daolong Dou
Summary: Plant pathogenic oomycete species secrete effectors to manipulate plant immunity and induce cell death. This study identified some cell death-inducing effectors and their related genes in resistant plants.
PHYTOPATHOLOGY RESEARCH
(2022)