Publications by authors named "Li Jun Ma"

Fungal effector proteins function at the interfaces of diverse interactions between fungi and their plant and animal hosts, facilitating interactions that are pathogenic or mutualistic. Recent advancements in protein structure prediction have significantly accelerated the identification and functional predictions of these rapidly evolving effector proteins. This development enables scientists to generate testable hypotheses for functional validation using experimental approaches.

View Article and Find Full Text PDF

is a cross-kingdom pathogen. While some strains cause disseminated fusariosis and blinding corneal infections in humans, others are responsible for devastating vascular wilt diseases in plants. To better understand the distinct adaptations of to animal or plant hosts, we conducted a comparative phenotypic and genetic analysis of two strains: MRL8996 (isolated from a keratitis patient) and Fol4287 (isolated from a wilted tomato []).

View Article and Find Full Text PDF

Nicotinamide adenine dinucleotide (NAD) is a pivotal coenzyme, essential for cellular reactions, metabolism, and mitochondrial function. Depletion of kidney NAD levels and reduced de novo NAD synthesis through the tryptophan-kynurenine pathway are linked to acute kidney injury (AKI), whereas augmenting NAD shows promise in reducing AKI. We investigated de novo NAD biosynthesis using in vitro, ex vivo, and in vivo models to understand its role in AKI.

View Article and Find Full Text PDF

Titanium-oxo cluster (TOC)-based metal-organic frameworks (MOFs) have received considerable attention in recent years due to their ability to expand the application of TOCs to fields that require highly stable frameworks. Herein, a new cyclic TOC formulated as [TiO(OPr)(TTFTC)(phen)] (, where TTFTC = tetrathiafulvalene tetracarboxylate and phen = phenanthroline) was crystallographically characterized. TOC takes a rectangular ring structure with two phen-modified Ti clusters as the width and two TTFTC ligands as the length.

View Article and Find Full Text PDF

Following invasion, insects can become adapted to conditions experienced in their invasive range, but there are few studies on the speed of adaptation and its genomic basis. Here, we examine a small insect pest, Thrips palmi, following its contemporary range expansion across a sharp climate gradient from the subtropics to temperate areas. We first found a geographically associated population genetic structure and inferred a stepping-stone dispersal pattern in this pest from the open fields of southern China to greenhouse environments of northern regions, with limited gene flow after colonization.

View Article and Find Full Text PDF

The genome-level features are crucial genetic resources for species identification and phylogenetic analysis. Here, the complete mitochondrial genome of Viereck 1912 (Hymenoptera: Braconidae: Aphidiinae) was sequenced, determined and analyzed. The circular genome is 16,372 bp in length with an overall base composition of 38.

View Article and Find Full Text PDF
Article Synopsis
  • ob/ob mice, a model for type 2 diabetes, were genetically modified to lack eNOS in order to study how this affects diabetic nephropathy, a kidney complication associated with diabetes.
  • In experiments with various groups of mice, measurements of blood pressure, kidney function, and injury markers were taken as the mice aged.
  • Results showed that complete loss of eNOS worsened kidney injury and increased blood pressure significantly, indicating that eNOS plays a crucial protective role in diabetic kidney disease.
View Article and Find Full Text PDF

A plot experiment was carried out to assess the applicability of soil conditioners on Cd-polluted acidic paddy fields. The effects of five soil conditioners[Tianxiang 1 Hao (TX1), limestone (Li), silicon fertilizer, Nuodikang (NDK), and calcium magnesium phosphate fertilizer (CaMg-P)] on Cd accumulation and transport between contaminated soil and rice plants and rice yield on the land were analyzed. The results showed that compared with that under the control, other tested methods increased soil pH by 0.

View Article and Find Full Text PDF

Course-based Undergraduate Research Experiences (CUREs) integrate active, discovery-based learning into undergraduate curricula, adding tremendous value to Biochemistry and Molecular Biology (BMB) education. There are multiple challenges in transforming a research project into a CURE, such as the readiness of students, the time commitment of the instructor, and the productivity of the research. In this article, we report a CURE course developed and offered in the University of Massachusetts Amherst BMB Department since 2018 that addresses these challenges.

View Article and Find Full Text PDF

The development of new polymer-based room-temperature phosphorescence materials is of great significance. By a special molecule design and a set of feasible property-enhancing strategies, coumarin derivatives (CMDs, M-M) were doped into polyvinyl alcohol (PVA), polyacrylamide (PAM), corn starch, and polyacrylonitrile (PAN) as information anti-counterfeiting. CMDs-doped PVA and CMDs-doped corn starch films showed long-lived phosphorescence emissions up to 1246 ms (M-PVA) and 697 ms (M-corn starch), reaching over 10 s afterglow under naked eye observation under ambient conditions.

View Article and Find Full Text PDF
Article Synopsis
  • - The fall webworm (FWW) invaded China 40 years ago with a single introduction event that caused a genetic bottleneck, leading to the emergence of two distinct genetic groups, western and eastern.
  • - An analysis of SNPs (single nucleotide polymorphisms) revealed that geographic and climatic factors influenced genetic variation, with environmental factors being more significant in shaping the western population's genetic response to precipitation, while temperature played a bigger role in the eastern group's adaptation.
  • - The study indicates that invasive species like FWW can still adapt to different environments after a single introduction, highlighting the importance of studying genetic traits across various habitats for understanding their evolutionary potential.
View Article and Find Full Text PDF

Guizhou Province is the province with the largest Hg production and reserves in China, and maize is the second largest grain crop in Guizhou Province. It is necessary to identify the status of soil Hg content in Guizhou Province and evaluate the safety of maize production. A total of 990 soil-maize samples and 270 single soil samples were collected in the main maize-producing areas to determine soil pH, cation exchange capacity (CEC), and organic matter content (SOM), as well as Hg content in soil and maize.

View Article and Find Full Text PDF

Fusarium, Aspergillus and Candida are important fungal pathogens that cause visual impairment and blindness in the USA and worldwide. This review will summarize the epidemiology and clinical features of corneal infections and discuss the immune and inflammatory responses that play an important role in clinical disease. In addition, we describe fungal virulence factors that are required for survival in infected corneas, and the activities of neutrophils in fungal killing, tissue damage and cytokine production.

View Article and Find Full Text PDF

Background: Field control of pest thrips mainly relies on insecticides, but the toxicity of insecticides can vary among thrips species and populations. In this study, we examined the susceptibility of multiple field populations of two thrips pests, Frankliniella occidentalis, and Thrips palmi, that often co-occur on vegetables, to nine insecticides belonging to seven subgroups.

Results: The highest level of variation in susceptibility among F.

View Article and Find Full Text PDF

Exogenous erythropoietin (EPO) is used to treat anemia in patients with chronic kidney disease (CKD). Concerns about the possible adverse effect of EPO on the progression of CKD have been raised owing to nonerythroid cell effects. We investigated the effects of low-dose EPO, independent of correcting anemia, on existing glomerulosclerosis.

View Article and Find Full Text PDF

The species complex (FOSC) includes both plant and human pathogens that cause devastating plant vascular wilt diseases and threaten public health. Each genome comprises core chromosomes (CCs) for housekeeping functions and accessory chromosomes (ACs) that contribute to host-specific adaptation. This study inspects global transcription factor profiles (TFomes) and their potential roles in coordinating CC and AC functions to accomplish host-specific interactions.

View Article and Find Full Text PDF
Article Synopsis
  • The text indicates a correction to a previously published article identified by the DOI 10.1371/journal.ppat.1010157.
  • This correction may address errors or clarifications needed in the original article, which was published in a scientific journal.
  • Readers and researchers are likely encouraged to review the correction for accurate information and context related to the study.
View Article and Find Full Text PDF

Metal-organic frameworks (MOFs) have attracted noticeable attention as promising candidates for electrochemical energy storage. However, the lack of electrical conductivity and the weak stability of most MOFs result in poor electrochemical performances. Here, a tetrathiafulvalene (TTF)-based complex, formulated as [(CuCN)(TTF(py))] () (TTF-(py) = tetra(4-pyridyl)-TTF), is assembled by in situ generation of coordinated CN from a nontoxic source.

View Article and Find Full Text PDF

Course-based Undergraduate Research Experiences (CUREs) integrate active, discovery-based learning into undergraduate curriculums, adding tremendous value to Biochemistry and Molecular Biology (BMB) education. There are multiple challenges in transforming a research project into a CURE, such as the readiness of students, the time commitment of the instructor, and the productivity of the research. In this article, we report a CURE course developed and offered in the University of Massachusetts Amherst BMB Department since 2018 that addresses these challenges.

View Article and Find Full Text PDF

The species complex (FOSC) includes both plant and human pathogens that cause devastating plant vascular wilt diseases and threaten public health. Each genome comprises core chromosomes (CCs) for housekeeping functions and accessory chromosomes (ACs) that contribute to host-specific adaptation. This study inspected global transcription factor profiles (TFomes) and their potential roles in coordinating CCs and ACs functions to accomplish host-specific pathogenicity.

View Article and Find Full Text PDF

Poor electrical conductivity and instability of metal-organic frameworks (MOFs) have limited their energy storage and conversion efficiency. In this work, we report the application of oxidatively doped tetrathiafulvalene (TTF)-based MOFs for high-performance electrodes in supercapatteries. Two isostructural MOFs, formulated as [M(py-TTF-py)(BPDC)]·2HO (M = Ni (), Zn (); py-TTF-py = 2,6-bis(4'-pyridyl)TTF; HBPDC = biphenyl-4,4'-dicarboxylic acid), are crystallographically characterized.

View Article and Find Full Text PDF

The filamentous fungus is a well-known cereal pathogen and is a pathogen with a wide host range. Recently, both species were reported as causal agents of apple rot, raising concerns about postharvest yield losses and mycotoxin contamination. Here, we report genome assemblies of KA13 and TaB10, both isolated from fruits with symptoms of apple rot.

View Article and Find Full Text PDF

Plant xylem colonization is the hallmark of vascular wilt diseases caused by phytopathogens within the species complex. Recently, xylem colonization has also been reported among endophytic strains, resulting in some uncertainty. This study compares xylem colonization processes by pathogenic versus endophytic strains in and , using pathogen Fo5176, tomato pathogen Fol4287, and the endophyte Fo47, which can colonize both plant hosts.

View Article and Find Full Text PDF