Relation between Chromosome Number and Stomata in Coffea

Franco, C. M.

doi:10.1086/334832

Cited by 44 publications

(21 citation statements)

References 3 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Palisade ratio was determined based on Wallis 26 and size of Guard Cell Area (GCA) was estimated following Franco's formula. 27 The descriptive terms of the anatomical features used here as per Hickey, 28 Metcalfe and Chalk, 29 and Sudhakaran.…”

Section: Methodsmentioning

confidence: 99%

Botanical Pharmacognosy of Centella asiatica (Linn.)Urban

Sudhakaran¹

2017

Phcog J

View full text Add to dashboard Cite

Section: Methodsmentioning

confidence: 99%

Botanical Pharmacognosy of Centella asiatica (Linn.)Urban

Sudhakaran¹

2017

Phcog J

View full text Add to dashboard Cite

“…The number of epidermal cells, stomatal number, stomatal index were calculated per square millimetre of leaf area from intercostal areas of fresh leaves as defined by Salisbury and palisade ratio was determined based on Wallis 12 and size of Guard Cell Area (GCA) was estimated following Franco's formula. 13 The descriptive terms of the anatomical features used here as per Hickey, 14 Metcalfe and Chalk, 15 Carlquist 16 and Sudhakaran.…”

Section: Methodsmentioning

confidence: 99%

Botanical Pharmacognosy of Holostemma ada-kodien Schult

Vasu¹

2017

View full text Add to dashboard Cite

Background: Holostemma ada-kodien Schult. is a perennial, twinning, laticiferous climbing herb belongs to the family Asclepiadaceae. It is an important medicinal plant with rejuvenate properties, used in Ayurveda for promoting vitality and life. The roots are sweet, ophthalmic, emollient, aphrodisiac, expectorant and galactagogue. It is highly specialized for the richness of a diverse array of aminoacids such as alanine, aspartic acid, glycine, serine, thereonine, valine, and terpenoid sugars. Aim: The present study was performed with the objectives of elaborating the macroscopic and histo-morpho diagnostic profile of Holostemma ada-kodien and analyse the quantitative, and powder microscopic peculiarities to support its pharmacognostic characterization. Materials and Methods: microscopic evaluation, quantitative standards and powder microscopy were carried out using the stem, root tuber, root and leaves. Results: Distribution of uniseriate, tricellular clothing trichomes in the epidermal tissues of the midrib, entire leaf margin with campylodromous major venation pattern, amphistomatic epidermis with anisocytic stomata, dorsiventral differentiation of mesophyll, small palisade ratio, small stomatal index, and the vascular system with several free collateral bundles in the petiole were features characteristic of the species. Gelatinous fibers distributed as concentric 'white rings' in the cortical tissues of the stem as distinct groups, deposition of druses crystals of calcium oxalate in the epidermal tissues of the lamina, ground tissues of petiole, cortical tissues of stem, root, root tubers and parenchymatous pith of the stem. Secondary xylem appeared fissured as radial and tangential strips, like the spokes of a wheel in cross section of the root tuber. Xylem core seemed irregular and wedge shaped in the mature root, with more axial and radial parenchyma and less xylem fibers also features characteristic of the taxon.

show abstract

“…The number of epidermal cells, stomatal number, stomatal index were calculated per square millimeter of leaf area from intercostals areas of fresh leaves and vein islet number and vein termination number were calculated from cleared leaves and palisade ratio was determined based on Wallis 25 and size of Guard Cell Area (GCA) was estimated following Franco's formula. 26 The leaves powder was cleared with absolute alcohol and mounted on glass slides for powder analysis. The descriptive terms of the anatomical features used here as per Hickey,27 Metcalfe and Chalk, 28 and Sudhakaran.…”

Section: Methodsmentioning

confidence: 99%

“…The stomatal index of A .indica Linn was found to be 11.7/mm 2 , and the mean Guard cell area (GCA) was of 306.9 µm. 2 Meltcafe and Chalk 26 have reported that the stomatal index could be used as a reliable taxonomic character for identifying the species, as the epidermal cell size is independent of the changes brought about by environmental factors. The epidermal cells were straight or wavy in nature, and the number of epidermal cells per square millimeter area of the leaf was found to be 916.4 (Table 1).…”

Section: Epidermal Charactersmentioning

confidence: 99%

Finger Printing of the Anatomical Markers, HPTLC Profile and Heavy Metals Content in the Leaves of Aristolochia indica Linn.

Sudhakaran¹

2016

phcogj

View full text Add to dashboard Cite

Background: Aristolochia indica Linn is now an endangered medicinal plant belonging to the family Aristolochiaceae. Many ethono-botanically important species of Aristolochia were found used in the traditional forms of medicine for the treatment of various illnesses. Aim: The present study concerns the microscopic, fluorescent, powder, quantitative microscopic characteristics of the leaves of Aristolichia indica Linn and its physico-chemical standards. Materials and Methods: Morpho-histological profile, Highperformance thin-layer chromatographic (HPTLC) finger print profile, and heavy metals content of the leaves of Aristolichia indica Linn. Results: The presence of camptodromous pinnate venation with pentagonal shaped areoles with linear veinlet endings, non-glandular hooked trichomes, amphistomatic and anomocytic stomata, small palisade ratio, small stomatal index were the anatomical features characteristics of the taxon. Physico-chemical evaluation of the leaves gave moisture content of 10.5%, total ash 12.7%, acid insoluble ash 1.9%, acid soluble ash 10.8%. Highperformance thin-layer chromatographic (HPTLC) identification of marker compound (Aristolochic acid I or (AAI)) in methanol extract of leaves was carried out. The developed HPTLC Chromatogram had revealed nine phytoconstutents in extract of leaf sample. The Rf value for Aristolochic acid I (C 17 H 11 NO 7 ) was found to be 0.41 and densitometric scanning had shown λ max at 318 nm for the marker compound. The content of marker constituent (AA I) present in shade-dried leaves of Aristochia indica Linn was estimated

show abstract

Relation between Chromosome Number and Stomata in Coffea

Cited by 44 publications

References 3 publications

Botanical Pharmacognosy of Centella asiatica (Linn.)Urban

Botanical Pharmacognosy of Centella asiatica (Linn.)Urban

Botanical Pharmacognosy of Holostemma ada-kodien Schult

Finger Printing of the Anatomical Markers, HPTLC Profile and Heavy Metals Content in the Leaves of Aristolochia indica Linn.

Contact Info

Product

Resources

About