A method of assay alpha-galactosidase and acid phosphatase activities in single hair roots is described. Enzyme histochemical studies show that the distribution of acid phosphatase in the human hair root matches that of alpha-galactosidase. Histochemically, the main activity is located in the upper part of the sheath near the orifice of the duct of the sebaceous gland. This is confirmed by enzyme assays on different parts of the hair root after dissection. The variation in the values found in individual hair roots is improved by relating alpha-galactosidase to acid phosphatase activities. Storage experiments indicate a remarkable stability of both alpha-galactosidase and acid phosphatase in human hair roots.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1111/j.1365-2133.1978.tb01621.x | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
A Case of Purpuric Papulopustular Eruption on the Extremities Developed During Erlotinib and Ramucirumab Combination Treatment, Resulting in Complete Regression Without Oral Prednisone or Discontinuing Chemotherapy.
Cureus
December 2024
Department of Dermatology, International University of Health and Welfare Narita Hospital, Narita, JPN.
A 53-year-old woman undergoing combination therapy with epidermal growth factor receptor (EGFR) and vascular endothelial growth factor receptor (VEGFR) inhibitors for advanced lung cancer with brain metastases developed pustules and punctate purpura on both lower extremities. Histopathological examination revealed neutrophilic infiltration around the hair follicles and erythrocyte extravasation in the perivascular regions near the hair roots, leading to a diagnosis of purpuric papulopustular eruptions. The rash improved with oral doxycycline (100 mg/day) and topical corticosteroids.
View Article and Find Full Text PDFBcWRKY25-BcWRKY33A-BcLRP1/BcCOW1 module promotes root development for improved salt tolerance in Bok choy.
Hortic Res
January 2025
State Key Laboratory of Crop Genetics & Germplasm Enhancement, Key Laboratory of Biology and Genetic Improvement of Horticultural Crops (East China), Ministry of Agriculture and Rural Affairs of China, Engineering Research Center of Germplasm Enhancement and Utilization of Horticultural Crops, Ministry of Education of China, Nanjing Agricultural University, No.1 Weigang Road, Xuanwu District, Nanjing 210095, China.
Root development is a complex process involving phytohormones and transcription factors. Our previous research has demonstrated that is significantly expressed in Bok choy roots under salt stress, and heterologous expression of increases salt tolerance and promotes root development in transgenic . However, the precise molecular mechanisms by which BcWRKY33A governs root development remain elusive.
View Article and Find Full Text PDFSpider Fungi: New species of and in the aerial rhizomorph web-maker guild in Amazonia.
Fungal Syst Evol
December 2024
Programa de Pós-graduação em Botânica - DIPO 2, Instituto Nacional de Pesquisas da Amazônia - Inpa, Av. André Araújo 2936, 69067-375, Manaus, AM, Brazil.
Rhizomorphs are hair- or wire-like melanized structures with structural differentiation analogous to plant roots that help fungi spread over an area and find food resources. Some species of multiple groups of the and the produce different types of rhizomorphs. In the , the structures are largely found in , particularly in the , , and .
View Article and Find Full Text PDFCPK1 activates CNGCs through phosphorylation for Ca signaling to promote root hair growth in Arabidopsis.
Nat Commun
January 2025
State Key Laboratory of Plant Trait Design, CAS Center for Excellence in Molecular Plant Sciences, Chinese Academy of Sciences (CAS), Shanghai, 200032, China.
Cyclic nucleotide-gated channel 5 (CNGC5), CNGC6, and CNGC9 (CNGC5/6/9 for simplicity) control Arabidopsis root hair (RH) growth by mediating the influx of external Ca to establish and maintain a sharp cytosolic Ca gradient at RH tips. However, the underlying mechanisms for the regulation of CNGCs remain unknown. We report here that calcium dependent protein kinase 1 (CPK1) directly activates CNGC5/6/9 to promote Arabidopsis RH growth.
View Article and Find Full Text PDFGenetic composition of Kazakh horses of Zhabe type evaluated by SNP genotyping.
Heliyon
January 2025
Institute of Plant Biology and Biotechnology, Timiryazev Str. 45, 050040, Almaty, Kazakhstan.
Horses are animals traditionally playing prominent role as both food source and working animals for Kazakh people. Zhabe horses are traditional type of indigenous Kazakh horses characterized by versatility and adaptation to conditions of Central Asia. The present work focuses on examination of genetic structure of Zhabe horses using SNP genotyping with addition of previously published data.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!