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Pollen-pistil interaction in Mauritia flexuosa: structural and cytological aspects provide insight into the reproductive success of a dioecious palm with supra-annual flowering in a semiarid environment.
Plant Biol (Stuttg)
January 2025
Laboratório de Ecologia Vegetal, Departamento de Biologia Geral, Universidade Estadual de Montes Claros, Montes Claros, Minas Gerais, Brazil.
The success of pollen-pistil interaction in Mauritia flexuosa (buriti), a palm adapted to the humid ecosystems, 'veredas', within the Cerrado, is influenced by intrinsic and environmental factors. Its supra-annual flowering, dioecy, and adverse climate conditions pose challenges for fertilization, therefore information on floral biology is essential. This study aimed to ascertain stigma receptivity, and elucidate structural, cytochemical, and ultrastructural aspects of the pollen-pistil relationship.
View Article and Find Full Text PDFA Case Report of an Immature Pituitary-Specific Transcription Factor 1 (PIT1)-Lineage Pituitary Neuroendocrine Tumor Along With Its Cytology and Ultrastructural Studies.
Cureus
December 2024
Department of Pathology, Section of Oncopathology and Morphological Pathology, Faculty of Medicine, University of Miyazaki, Miyazaki, JPN.
Immature pituitary-specific transcription factor 1 (PIT1)-lineage pituitary neuroendocrine tumors are composed of PIT1-lineage cells with cytological atypia and limited differentiation. These tumors are rare and no cytological features of this neoplasm have been reported. This study is the first to report the cytological features of an immature PIT1-lineage tumor.
View Article and Find Full Text PDFProtective effect of Ocimum basilicum L. essential oil on Lactuca sativa L. treated with cadmium.
Plant Physiol Biochem
December 2024
Department of Life Science, Health, and Health Professions", Link Campus University, 00165 Rome, Italy. Electronic address:
In recent years, essential oils (EO) are a sustainable and effective alternative to conventional chemical treatments in response to heavy metals in plants. These natural molecules can increase the resilience of plants under stress conditions. In the present work, the ability of EOs from the aerial parts of Ocimum basilicum L.
View Article and Find Full Text PDFUveal iridophoroma in a betta fish (Betta splendens).
J Comp Pathol
November 2024
Veterinary Pathology Services, Joint Pathology Center, Stephen Sitter Avenue, Silver Spring, Maryland 20910-1290, USA. Electronic address:
Chromatophoromas are neoplasms arising from pigment cells in vertebrates. Iridophoromas are a type of chromatophoroma that are reported in several teleost species. There are multiple case reports of this diagnosis in betta fish (Betta splendens), but all previously reported cases originated from the skin.
View Article and Find Full Text PDFInvolvement of Programmed Cell Death and Autophagy on Schizogenous Secretory Canal Formation in Angelica dahurica var. formosana Root.
Microsc Res Tech
February 2025
School of Pharmacy, Shaanxi University of Chinese Medicine, Xianyang, Shaanxi, China.
Schizogenous secretory canal is an important functional structure of Angelica dahurica var. formosana, which is the main part of the accumulation of essential oil, coumarin and other components. The developmental process of secretory tissue and the accumulation of components are closely related.
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