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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 PDFCgLS mediates limonene synthesis of main essential oil component in secretory cavity cells of Citrus grandis 'Tomentosa' fruits.
Int J Biol Macromol
September 2024
Guangdong Laboratory for Lingnan Modern Agriculture, South China Agricultural University, Wushan Road, Guangzhou 510642, China; Guangdong Technology Research Center for Traditional Chinese Veterinary Medicine and Natural Medicine, South China Agricultural University, Wushan Road, Guangzhou 510642, China; Guangdong Key Laboratory for Innovative Developmentand Utilization of Forest Plant Germplasm, South China Agricultural University, Wushan Road, Guangzhou 510642, China; Center for Medicinal Plants Research, College of Life Sciences, South China Agricultural University, Guangzhou 510642, China. Electronic address:
d-Limonene is the predominant component of essential oil from Exocarpium Citri Grandis, known for its antibacterial, antioxidant, insecticidal, and anti-inflammatory properties. The synthesis, transport, and accumulation of d-limonene in Citrus grandis 'Tomentosa' fruits are regulated by limonene synthase (LS) and its associated regulatory genes. This study addresses the gap in understanding the spatiotemporal cytological changes of LS and its regulatory genes.
View Article and Find Full Text PDFCytotoxic and genotoxic effects of a pendimethalin-based herbicide in Apis mellifera.
Ecotoxicol Environ Saf
July 2024
University of Calabria, Department of Biology, Ecology and Earth Science, Rende, Italy. Electronic address:
Public concern about the effects of pesticides on non-target organisms has increased in the recent years. Nevertheless, there is a limited number of studies that address the actual toxic effects of herbicides on insects. This study investigated the side effects of herbicides on non-target organisms inhabiting agroecosystems and performing essential ecological and economic functions such as crop pollination.
View Article and Find Full Text PDFCytochemical localization and synthesis mechanism of the glucomannan in pseudobulbs of Reichb. f.
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Key Laboratory of Plant Germplasm Enhancement and Specialty Agriculture, Wuhan Botanical Garden, Chinese Academy of Sciences, Wuhan 430074, China.
The dried pseudobulbs of , an important traditional Chinese medicine named , have an extraordinary polysaccharide content and excellent prospects for medicinal effects. However, the distribution and molecular mechanism underlying biosynthesis are poorly understood. In this study, chemical and immunologic analyses were performed in representative tissues of , and the results showed that what are conventionally termed polysaccharides (BSPs) are water-soluble polysaccharides deposited only in pseudobulbs.
View Article and Find Full Text PDFTelangiectatic osteosarcoma in four dogs: Cytologic, histopathologic, cytochemical, and immunohistochemical findings.
Vet Clin Pathol
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Department of Clinical Sciences, Cummings School of Veterinary Medicine, Tufts University, North Grafton, Massachusetts, USA.
Telangiectatic osteosarcoma is a rare variant of osteosarcoma histologically and clinically similar to hemangiosarcoma (HSA). This case series describes the imaging and cytologic features of four histologically confirmed telangiectatic osteosarcomas, including the use of cytochemical stains. Alkaline phosphatase (ALP) was applied to Wright-Giemsa-stained cytology slides, and Factor VIII immunohistochemistry was evaluated.
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