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ARS Home » Midwest Area » St. Paul, Minnesota » Plant Science Research » Research » Publications at this Location » Publication #402785
Research Project: Functional Genomics for Improving Nutrients and Quality in Alfalfa and Soybean

Location: Plant Science Research

Title: Functional anatomy of Glycine max L. cv Minimax leaves

Author
item LOPES, HENDRIL - Universidade Federal De Vicosa
item VIEIRA DE ARRUDA VEN, MARIA EDUARDA - Universidade Federal De Vicosa
item COSTA, MAXIMILLER DAL - Universidade Federal De Vicosa
item Curtin, Shaun
item PICCOLI, EDGARD - Universidade Federal De Vicosa
item ZSOGON, AGUSTIN - Universidade Federal De Vicosa

Submitted to: Meeting Abstract
Publication Type: Abstract Only
Publication Acceptance Date: 3/31/2023
Publication Date: 6/24/2023
Citation: Lopes, H., Vieira De Arruda Ven, M., Costa, M., Curtin, S.J., Piccoli, E., Zsogon, A. 2023. Functional anatomy of Glycine max L. cv Minimax leaves. Meeting Abstract. Vienna, Austria. June 18-24, 2023.

Interpretive Summary:

Technical Abstract: An anatomical and histochemical analysis was carried out on the miniature soybean (G. max) genotype MiniMax. The protocols for anatomical sections were refined although known features such as the paravenal parenchyma can be easily identified in longitudinal sections and in cross sections of the leaf blade. In larger vascular bundles the paravenal parenchyma cells are extended to reach the epidermis. This structural observation may play a role in water and nutrient resource distribution, like the bundle sheath extension. Petiole, petiolule and leaf blade sections allowed the observation of single-layered palisade parenchyma and mesophyll with 5 to 7 layers of spongy parenchyma. The organization of the petiolule is like the petiole, although with a less developed vasculature. The paravenal parenchyma is located between the chlorenchyma and the leaf is amphistomatic with a single layer epidermis. There is a lignified-walled cell layer and a starch sheath in the same position circumscribing a pith parenchyma. This lignified-walled cell layer is almost aligned with primary phloem fiber and procambial initials. Calcium oxalate crystals were observed surrounding this layer and in the phloem region while starch was observed in this this layer and in the outer pith cells. Detailed anatomical and histochemical analysis has contributed to characterization soybean leaf using the Minimax genotype as a model plant. This data will help with the characterization and comparative analysis commercial soybean cultivars and further insight in to paravenal parenchyma function.