Kalita Barsha, Roy Abhijeet, Jayaprakash Aiswarya, Arunachalam Annamalai, P T V Lakshmi
Department of Bioinformatics, Pondicherry University, Puducherry, India.
Department of Food Science & Technology, Pondicherry University, Puducherry, India.
Mycology. 2024 Jan 2;14(4):344-357. doi: 10.1080/21501203.2023.2265414. eCollection 2023.
, an opportunistic fungal pathogen, causes a highly fatal disease, mucormycosis. Spore germination is a crucial mechanism for disease pathogenesis. Thus, exploring the molecular mechanisms of fungal germination would underpin our knowledge of such transformation and, in turn, help control mucormycosis. To gain insight into the developmental process particularly associated with cell wall modification and synthesis, weighted gene co-expression network analysis (WGCNA) was performed including both coding and non-coding transcripts identified in the current study, to find out the module of interest in the germination stages. The module-trait relationship identified a particular module to have a high correlation only at the resting phase and further analysis revealed the module to be enriched for protein phosphorylation, carbohydrate metabolic process, and cellular response to stimulus. Moreover, co-expression network analysis of highly connected nodes revealed cell wall modifying enzymes, especially those involved in mannosylation, chitin-glucan crosslinking, and polygalacturonase activities co-expressing and interacting with the novel lncRNAs among which some of them predicted to be endogenous target mimic (eTM) lncRNAs. Hence, the present study provides an insight into the onset of spore germination and the information on the novel non-coding transcripts with key cell wall-related enzymes as potential targets against mucormycosis.
作为一种机会性真菌病原体,可引发一种高度致命的疾病——毛霉病。孢子萌发是疾病发病机制的关键机制。因此,探索真菌萌发的分子机制将巩固我们对这种转变的认识,进而有助于控制毛霉病。为深入了解与细胞壁修饰和合成特别相关的发育过程,进行了加权基因共表达网络分析(WGCNA),该分析包括本研究中鉴定的编码和非编码转录本,以找出萌发阶段感兴趣的模块。模块-性状关系确定了一个特定模块仅在静止期具有高度相关性,进一步分析表明该模块富含蛋白质磷酸化、碳水化合物代谢过程和细胞对刺激的反应。此外,对高度连接节点的共表达网络分析揭示了细胞壁修饰酶,特别是那些参与甘露糖基化、几丁质-葡聚糖交联和多聚半乳糖醛酸酶活性的酶,与新型长链非编码RNA(lncRNAs)共表达并相互作用,其中一些被预测为内源性靶标模拟(eTM)lncRNAs。因此,本研究深入了解了孢子萌发的起始过程,并提供了有关新型非编码转录本的信息,这些转录本与关键的细胞壁相关酶作为抗毛霉病的潜在靶点。