@article {1499, title = {Histochemistry and Powder Microscopy of Ceropegia juncea Roxb. - A Potent Medicinal Plant}, journal = {Pharmacognosy Research}, volume = {17}, year = {2025}, month = {September 2025}, pages = {1303-1307}, type = {Research Article}, chapter = {1303}, abstract = {

Background: The Ceropegia juncea Roxb. Belongs to the subfamily Asclepiadoideae and the family Apocynaceae. The histochemistry is used to localize primary and secondary metabolites within the cells, which can be determined by using specific chemicals and colours in the twinning herbaceous plant C. juncea. Materials and Methods: Histochemical analysis is to identify the absorption of colour in the specific location of the cells or tissues selected for phytochemicals and the powder microscopy analyzed by standard protocols. Results: The alkaloid, protein, tannin, lipid, crystal, starch, steroid, phenol and flavonoid in different cells and the powder microscopy exhibits parenchyma, fragments of vascular bundles, bordered pitted vessels, spiral vessels, fibre bundles, sclereids, prismatic calcium oxalate crystals and lipid. Conclusion: Alkaloids can cure cancer, inflammation and protein used for weight loss, rich in antioxidants, anti-diabetic, improve immune system followed by lipids used to regulate hormone, transmit nerve impulses and store energy. Tannin has the ability of antioxidants, to maintain skin and anti-inflammatory. Natural chemicals are localized in the Ceropegia juncea Roxb. Stem different cells to isolate phytoconstituents for further in vitro and in vivo studies to produce novel drug.

}, keywords = {Crystals and Spiral Vessels, Histochemistry, Powder microscopy}, doi = {10.5530/pres.20252315}, author = {Bhuvaneswari Manoharan and Chitra Vadivu Chinnasamy and Balakrishnan Veluchamy and Raja Kannan} } @article {1362, title = {Phytotomy and Microchemistry of Peperomia tetraphylla G. (Forst.) Hook. \& Arn.: A Lead to Accurate Identification}, journal = {Pharmacognosy Research}, volume = {17}, year = {2025}, month = {January 2025}, pages = {221-231}, type = {Original Article}, chapter = {221}, abstract = {

Background: Our study aims to explore the anatomical characters of Peperomia tetraphylla, commonly called four-leaved peperomia and belonging to the family Piperaceae. Objectives: The investigation was undertaken to address the dearth of existing reports on the anatomical and histochemical aspects of Peperomia tetraphylla. Materials and Methods: Plant materials were collected, identified and preserved in Formalin-Aceto-Alcohol (FAA). The preserved specimens were sectioned using a rotatory microtome and stained with Toluidine blue, safranin and astra blue. Powder Microscopic studies and histochemical analysis were done using standard procedure. Results: Peperomia tetraphylla is a succulent herb with spike inflorescence of minute, perianthless flowers. The stem outline was undulate with cutinized single layered epidermis having glandular trichomes. Scattered collateral vascular bundles were present in the parenchymatous ground tissue. The section of the petiole shows a distinct epidermis with glandular trichomes. Vascular bundles are arranged in crescent shaped manner in ground tissue. Histochemical analysis shown the presence of alkaloids, tannins, starch, cutin, lignin, resin and crystals in various zone of leaf and stem of Peperomia tetraphylla. Conclusion: These characteristics are essential since it portrays the physical appearance of the plants which helps to regulate the genuineness of the drug.

}, keywords = {Histochemistry, Microscopic, Peperomia tetraphylla, Piperaceae, Powder microscopy}, doi = {10.5530/pres.20252003}, author = {Sudeepthi Nallasamy and Shalini Senapathi and Geetha Dhandapani and Jayashre Ramesh} }