APTKLHIAPTKLHI

Indonesian Journal of Forestry ResearchIndonesian Journal of Forestry Research

The stem anatomy of the genus Pinanga Blume distributed to Assam of northeast India remains unattended. An anatomical study was conducted to address this research gap, where the plant samples to Pinanga were collected from different parts of Assam and identified as P. gracilis, P. griffithii, and P. sylvestris. The findings recorded anatomical variation among the species. Freehand sections of the stems were conducted, double-stained, quality specimens mounted, and suitable slides were observed under a light microscope. The types of epidermal cells and metaxylem vessels were variable among the studied species. In this study, vascular bundles with more than one metaxylem vessel were also recorded, which can be used for identification.

The present anatomical study, particularly the epidermal cells and numbers of vessels, hypodermal cells, fibrovascular bundles, and numbers of protoxylems, were found to be useful anatomical features to separate the three studied Pinanga species.Variation of the size of the metaxylem vessels was observed in all three studied species collected from Assam.This study is helpful in the identification of these species based on anatomy and provides additional information for future research to understand the relationship among Pinanga species globally.

Penelitian lanjutan dapat difokuskan pada analisis filogenetik dari spesies Pinanga di Assam untuk memahami hubungan evolusioner mereka dan mengkonfirmasi validitas taksonomi berdasarkan data anatomis dan molekuler. Selain itu, studi komparatif yang lebih mendalam mengenai anatomi batang Pinanga dari berbagai wilayah geografis, termasuk Indonesia dan negara-negara lain di Asia Tenggara, dapat dilakukan untuk mengidentifikasi adaptasi spesifik terhadap kondisi lingkungan yang berbeda. Terakhir, penelitian dapat diperluas untuk mengeksplorasi hubungan antara variasi anatomis pada Pinanga dengan karakteristik fisiologis seperti efisiensi transportasi air dan nutrisi, serta respons terhadap stres lingkungan, yang dapat memberikan wawasan tentang strategi kelangsungan hidup spesies ini di berbagai habitat.

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