Taxonomic Demarcation of (Poir.) Roem. & Schult., (L.) P. Beauv., and (L.) P. Beauv. (Cenchrinae, Paniceae, Panicoideae, Poaceae) From Phytolith Signatures

Overview

Journal Front Plant Sci

Date 2018 Jul 11

PMID 29988487

Citations 5

Authors

Mudassir A Bhat

Sheikh A Shakoor

Priya Badgal

Amarjit S Soodan

Affiliations

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Abstract

The role and significance of phytoliths in taxonomic diagnosis of grass species has been well documented with a focus on the types found in foliar epidermis and the synflorescence. The present paper is an attempt to broaden the scope of phytoliths in species diagnosis of grasses by developing phytolith signatures of some species of the foxtail genus P. Beauv. through location and physico-chemical analysis of various phytolith morphotypes in different parts of the plant body. Clearing solution and dry ashing extraction methods were employed for location and isolation of phytolith morphotypes respectively. Ultrastructural details were worked out by Scanning Electron Microscopy (SEM) and Transmission Electron Microscopy. Morphometric and frequency data of phytolith morphotypes were also recorded. Biochemical architecture of various phytolith types was worked out through SEM-EDX, XRD, and FTIR analysis. Data were analyzed through Principal Component Analysis and Cluster Analysis. location of phytoliths revealed species specific epidermal patterns. The presence of cystoliths (calcium oxalate crystals) in the costal regions of adaxial leaf surface of (L.) P. Beauv. is the first report for the genus . Our results revealed marked variations in epidermal ornamentation and undulation patterns with a novel "Λ" (Lamda) type of undulated ornamentation reported in . Dry ashing method revealed species specific clusters of phytolith morphotypes. The study revealed that phytoliths can play a significant role in resolution of taxonomic identity of three species of . Each species was marked out by a unique assemblage of phytolith morphotypes from various parts of the plant body. Apart from location and epidermal patterning, diagnostic shapes, frequency distribution, size dimensions, and biochemical architecture emerged as complementary traits that help in developing robust phytolith signatures for plant species.

Citing Articles

Phytoliths analysis in root, culm, leaf and synflorescence of Rostraria cristata (Poaceae).

Chowdhary P, Badgal P, Bhat M, Shakoor S, Mir B, Soodan A J Plant Res. 2023; 136(6):787-801.

PMID: 37550551 DOI: 10.1007/s10265-023-01485-1.

Multi-omics intervention in to dissect climate-resilient traits: Progress and prospects.

Aggarwal P, Pramitha L, Choudhary P, Singh R, Shukla P, Prasad M Front Plant Sci. 2022; 13:892736.

PMID: 36119586 PMC: 9470963. DOI: 10.3389/fpls.2022.892736.

Phytolith profile of Acrachne racemosa (B. Heyne ex Roem. & Schult.) Ohwi (Cynodonteae, Chloridoideae, Poaceae).

Badgal P, Chowdhary P, Bhat M, Soodan A PLoS One. 2022; 17(2):e0263721.

PMID: 35148333 PMC: 8836352. DOI: 10.1371/journal.pone.0263721.

Phytolith evidence for the pastoral origins of multi-cropping in Mesopotamia (ancient Iraq).

Laugier E, Casana J, Cabanes D Sci Rep. 2022; 12(1):60.

PMID: 35013508 PMC: 8748697. DOI: 10.1038/s41598-021-03552-w.

A microbotanical and microwear perspective to plant processing activities and foodways at Neolithic Çatalhöyük.

Santiago-Marrero C, Tsoraki C, Lancelotti C, Madella M PLoS One. 2021; 16(6):e0252312.

PMID: 34111169 PMC: 8191975. DOI: 10.1371/journal.pone.0252312.

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