Investigating the involvement of potato ( L.) gene in the combined stress response to phosphorus deficiency and aluminum toxicity.

Phosphorus deficiency and aluminum toxicity in acidic soils are important factors that limit crop yield. To further explore this issue, we identified 18 members of the gene family in the potato genome in this study. Through bioinformatics analysis, we found that the gene, an important member of this family, exhibited high expression levels in potato roots, particularly under conditions of phosphorus deficiency and aluminum toxicity stress.

Identification of the potato ( L.) P-type ATPase gene family and investigating the role of in response to Pep13.

P-type ATPase family members play important roles in plant growth and development and are involved in plant resistance to various biotic and abiotic factors. Extensive studies have been conducted on the P-type ATPase gene families in and rice but our understanding in potato remains relatively limited. Therefore, this study aimed to screen and analyze 48 P-type ATPase genes from the potato ( L.

CaWRKY01-10 and CaWRKY08-4 Confer Pepper's Resistance to Infection by Directly Activating a Cluster of Defense-Related Genes.

Phytophthora blight of pepper, which is caused by the notorious oomycete pathogen , is a serious disease in global pepper production regions. Our previous study had identified two WRKY transcription factors (TFs), CaWRKY01-10 and CaWRKY08-4, which are prominent modulators in the resistant pepper line CM334 against infection. However, their functional mechanisms and underlying signaling networks remain unknown.

Integrative Transcriptome Analysis of mRNA and miRNA in Pepper's Response to Infection.

Phytophthora blight of pepper is a notorious disease caused by the oomycete pathogen , which poses a great threat to global pepper production. MicroRNA (miRNA) is a class of non-coding small RNAs that regulate gene expressions by altering the translation efficiency or stability of targeted mRNAs, which play important roles in the regulation of a plant's response to pathogens. Herein, time-series mRNA-seq libraries and small RNA-seq libraries were constructed using pepper roots from the resistant line CM334 and the susceptible line EC01 inoculated with at 0, 6, 24, and 48 h post-inoculation, respectively.

Identification of the gene family in the potato ( L.) and analysis of the function of / in response to aluminum toxicity.

Introduction: Aluminum (Al)-activated malate transporters (ALMTs) play an important role in the response to Al toxicity, maintenance of ion homeostasis balance, mineral nutrient distribution, and fruit quality development in plants. However, the function of the gene family in potato remains unknown.

Methods And Results: In this study, 14 genes were identified from the potato genome, unevenly distributed on seven different chromosomes.

RNAi-Based Gene Silencing of RXLR Effectors Protects Plants Against the Oomycete Pathogen .

is a broad-host range oomycete pathogen that can cause severe phytophthora blight disease of pepper and hundreds of other plant species worldwide. Natural resistance against is inadequate, and it is very difficult to control by most of existing chemical fungicides. Therefore, it is urgent to develop alternative strategies to control this pathogen.

An ICln homolog contributes to osmotic and low-nitrate tolerance by enhancing nitrate accumulation in Arabidopsis.

Nitrate (NO ) is a source of plant nutrients and osmolytes, but its delivery machineries under osmotic and low-nutrient stress remain largely unknown. Here, we report that AtICln, an Arabidopsis homolog of the nucleotide-sensitive chloride-conductance regulatory protein family (ICln), is involved in response to osmotic and low-NO stress. The gene AtICln, encoding plasma membrane-anchored proteins, was upregulated by various osmotic stresses, and its disruption impaired plant tolerance to osmotic stress.

The Arabidopsis phosphatase PP2C49 negatively regulates salt tolerance through inhibition of AtHKT1;1.

Type 2C protein phosphatases (PP2Cs) are the largest protein phosphatase family. PP2Cs dephosphorylate substrates for signaling in Arabidopsis, but the functions of most PP2Cs remain unknown. Here, we characterized PP2C49 (AT3G62260, a Group G PP2C), which regulates Na distribution under salt stress and is localized to the cytoplasm and nucleus.

A Defective Vacuolar Proton Pump Enhances Aluminum Tolerance by Reducing Vacuole Sequestration of Organic Acids.

Plants cope with aluminum (Al) toxicity by secreting organic acids (OAs) into the apoplastic space, which is driven by proton (H) pumps. Here, we show that mutation of vacuolar H-translocating adenosine triphosphatase (H-ATPase) subunit a2 (VHA-a2) and VHA-a3 of the vacuolar H-ATPase enhances Al resistance in Arabidopsis (). mutant plants displayed less Al sensitivity with less Al accumulation in roots compared to wild-type plants when grown under excessive Al Interestingly, in response to Al exposure, plants showed decreased vacuolar H pump activity and reduced expression of and , which were accompanied by increased plasma membrane H pump (PM H-ATPase) activity.