Paper · 2025 · BMC Plant Biology

Anatomical characterization of Semi-arid Bignoniaceae using light and scanning electron microscopy

Romisha Sonia; Shabnum Shaheen; Muhammad Waheed; et al.

16
claims
26
verbatim quotes
2
citations
2
research areas
✓
Open access · cc-by-nc-nd

Abstract

BACKGROUND: The present research work was done to evaluate the anatomical differences among selected species of the family Bignoniaceae, as limited anatomical data is available for this family in Pakistan. Bignoniaceae is a remarkable family for its various medicinal properties and anatomical characterization is an important feature for the identification and classification of plants. METHODOLOGY: In this study, several anatomical structures were examined, including stomata type and shape, leaf epidermis shape, epidermal cell size, and the presence or absence of trichomes and crystals (e.g., prisms, raphides, and druses). Three statistical tools-heat map analysis, correlation analysis, and principal component analysis (PCA)-were used to highlight distinctions and similarities among the species. RESULTS: On both the upper and lower leaf surfaces, polygonal, irregular, and hexagonal epidermal cells with thick cell walls were observed. Three patterns of anticlinal cell walls were detected: curved, straight, and sinuous. Distinct stomatal types were also identified across the different species. For instance, sunken stomata were observed in Kigelia africana and Jacaranda mimosaefolia, while anomocytic stomata were found in Oroxylum indicum, Pyrostegia venusta, Tecoma stans, Tecomella undulata, Mansoa alliacea, Heterophragma adenophylla, Handroanthus impetiginosus, Campsis radicans, and Anemopaegma chamberlaynii. Paracytic stomata were examined in B. callistegioides and Dolichandra unguis-cati. Tabebuia aurea was the only species with Tetracytic stomata. A contiguous type of stomata was only observed in Millingtonia hortensis. This family contained three types of trichomes. Glandular peltate trichomes contained a basal epidermal cell, a very small monocellular stalk and a circular or round multicellular head containing 12 cells arranged in a single circle. Non-glandular trichomes had a thin apex without a head and a pointed end. Branched trichomes contained several arms arising from a common base. CONCLUSION: This anatomical examination, using advanced microscopic techniques, is the first to classify several species that are not listed in the e-flora of Pakistan. Leaf anatomical research has proven valuable in resolving challenging taxonomic issues.

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Claims 16

Observationobservedoriginal resultmeasured

Claim · model-written summary

Leaf epidermal cells on both upper and lower leaf surfaces were polygonal, irregular or hexagonal with thick cell walls in Bignoniaceae.

Taxon
BignoniaceaeBignoniaceaee0
Organ / stage
upper and lower leaf surfacese1
Outcome
epidermal cellse1
Qualifier
polygonal, irregular, and hexagonal epidermal cells with thick cell wallse1

Verbatim

e0

“anatomical differences among selected species of the family Bignoniaceae”

✓ located verbatim in the source · abstract, characters 63–135 · show in text ↑
e1

“On both the upper and lower leaf surfaces, polygonal, irregular, and hexagonal epidermal cells with thick cell walls were observed”

✓ located verbatim in the source · abstract, characters 815–945 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Anticlinal cell walls in Bignoniaceae showed three patterns: curved, straight and sinuous.

Taxon
BignoniaceaeBignoniaceaee0
Outcome
anticlinal cell wallse2
Qualifier
curved, straight, and sinuouse2

Verbatim

e0

“anatomical differences among selected species of the family Bignoniaceae”

✓ located verbatim in the source · abstract, characters 63–135 · show in text ↑
e2

“Three patterns of anticlinal cell walls were detected: curved, straight, and sinuous”

✓ located verbatim in the source · abstract, characters 947–1031 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Kigelia africana has sunken stomata.

Taxon
Kigelia africanaKigelia africanae3
Outcome
stomatae3
Qualifier
sunkene3

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Kigelia africana
Kigelia africana · TaxonBjørn Christian Tørrissen · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e3

“sunken stomata were observed in Kigelia africana and Jacaranda mimosaefolia”

✓ located verbatim in the source · abstract, characters 1122–1197 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Jacaranda mimosaefolia has sunken stomata.

Taxon
Jacaranda mimosaefoliaJacaranda mimosifoliae3
Outcome
stomatae3
Qualifier
sunkene3

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Jacaranda mimosifolia
Jacaranda mimosifolia · TaxonKahuroa · Public domain · Wikimedia Commons ↗

Verbatim

e3

“sunken stomata were observed in Kigelia africana and Jacaranda mimosaefolia”

✓ located verbatim in the source · abstract, characters 1122–1197 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Oroxylum indicum, Pyrostegia venusta and Tecoma stans have anomocytic stomata.

Taxon
BignoniaceaeBignoniaceaee0
Material
Oroxylum indicum, Pyrostegia venusta, Tecoma stanse4
Outcome
stomatae4
Qualifier
anomocytice4

Verbatim

e0

“anatomical differences among selected species of the family Bignoniaceae”

✓ located verbatim in the source · abstract, characters 63–135 · show in text ↑
e4

“anomocytic stomata were found in Oroxylum indicum, Pyrostegia venusta, Tecoma stans, Tecomella undulata, Mansoa alliacea, Heterophragma adenophylla, Handroanthus impetiginosus, Campsis radicans, and Anemopaegma chamberlaynii”

✓ located verbatim in the source · abstract, characters 1205–1429 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Tecomella undulata, Mansoa alliacea and Heterophragma adenophylla have anomocytic stomata.

Taxon
BignoniaceaeBignoniaceaee0
Material
Tecomella undulata, Mansoa alliacea, Heterophragma adenophyllae4
Outcome
stomatae4
Qualifier
anomocytice4

Verbatim

e0

“anatomical differences among selected species of the family Bignoniaceae”

✓ located verbatim in the source · abstract, characters 63–135 · show in text ↑
e4

“anomocytic stomata were found in Oroxylum indicum, Pyrostegia venusta, Tecoma stans, Tecomella undulata, Mansoa alliacea, Heterophragma adenophylla, Handroanthus impetiginosus, Campsis radicans, and Anemopaegma chamberlaynii”

✓ located verbatim in the source · abstract, characters 1205–1429 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Handroanthus impetiginosus, Campsis radicans and Anemopaegma chamberlaynii have anomocytic stomata.

Taxon
BignoniaceaeBignoniaceaee0
Material
Handroanthus impetiginosus, Campsis radicans, and Anemopaegma chamberlayniie4
Outcome
stomatae4
Qualifier
anomocytice4

Verbatim

e0

“anatomical differences among selected species of the family Bignoniaceae”

✓ located verbatim in the source · abstract, characters 63–135 · show in text ↑
e4

“anomocytic stomata were found in Oroxylum indicum, Pyrostegia venusta, Tecoma stans, Tecomella undulata, Mansoa alliacea, Heterophragma adenophylla, Handroanthus impetiginosus, Campsis radicans, and Anemopaegma chamberlaynii”

✓ located verbatim in the source · abstract, characters 1205–1429 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Paracytic stomata were examined in Bignoniella callistegioides, cited in the abstract as B. callistegioides.

Taxon
B. callistegioidese5
Outcome
stomatae5
Qualifier
Paracytice5

Verbatim

e5

“Paracytic stomata were examined in B. callistegioides and Dolichandra unguis-cati”

✓ located verbatim in the source · abstract, characters 1431–1512 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Dolichandra unguis-cati has paracytic stomata.

Taxon
Dolichandra unguis-catiDolichandra unguis-catie5
Outcome
stomatae5
Qualifier
Paracytice5

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Dolichandra unguis-cati
Dolichandra unguis-cati · TaxonHectonichus · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e5

“Paracytic stomata were examined in B. callistegioides and Dolichandra unguis-cati”

✓ located verbatim in the source · abstract, characters 1431–1512 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Tabebuia aurea was the only Bignoniaceae species with tetracytic stomata.

Taxon
Tabebuia aureaTabebuia aureae6
Outcome
stomatae6
Qualifier
only species with Tetracytice6

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Tabebuia aurea
Tabebuia aurea · TaxonJoão Medeiros · CC BY 2.0 · Wikimedia Commons ↗

Verbatim

e6

“Tabebuia aurea was the only species with Tetracytic stomata”

✓ located verbatim in the source · abstract, characters 1514–1573 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Millingtonia hortensis was the only species with a contiguous type of stomata.

Taxon
Millingtonia hortensisMillingtonia hortensise7
Outcome
stomatae7
Qualifier
contiguouse7

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Millingtonia hortensis
Millingtonia hortensis · TaxonJ.M.Garg · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e7

“A contiguous type of stomata was only observed in Millingtonia hortensis”

✓ located verbatim in the source · abstract, characters 1575–1647 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Glandular peltate trichomes in Bignoniaceae have a basal epidermal cell, a very small monocellular stalk and a multicellular head of 12 cells in a single circle.

Taxon
BignoniaceaeBignoniaceaee0
Outcome
Glandular peltate trichomese1
Qualifier
a basal epidermal cell, a very small monocellular stalk and a circular or round multicellular head containing 12 cells arranged in a single circlee1

Verbatim

e0

“anatomical differences among selected species of the family Bignoniaceae”

✓ located verbatim in the source · abstract, characters 63–135 · show in text ↑
e1

“Glandular peltate trichomes contained a basal epidermal cell, a very small monocellular stalk and a circular or round multicellular head containing 12 cells arranged in a single circle”

✓ located verbatim in the source · abstract, characters 1697–1881 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Non-glandular trichomes in Bignoniaceae have a thin apex without a head and a pointed end.

Taxon
BignoniaceaeBignoniaceaee0
Outcome
Non-glandular trichomese1
Qualifier
a thin apex without a head and a pointed ende1

Verbatim

e0

“anatomical differences among selected species of the family Bignoniaceae”

✓ located verbatim in the source · abstract, characters 63–135 · show in text ↑
e1

“Non-glandular trichomes had a thin apex without a head and a pointed end”

✓ located verbatim in the source · abstract, characters 1883–1955 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Branched trichomes in Bignoniaceae contain several arms arising from a common base.

Taxon
BignoniaceaeBignoniaceaee0
Outcome
Branched trichomese1
Qualifier
several arms arising from a common basee1

Verbatim

e0

“anatomical differences among selected species of the family Bignoniaceae”

✓ located verbatim in the source · abstract, characters 63–135 · show in text ↑
e1

“Branched trichomes contained several arms arising from a common base”

✓ located verbatim in the source · abstract, characters 1957–2025 · show in text ↑
Observationauthor interpretationoriginal resultmeasured

Claim · model-written summary

The anatomical examination is the first to classify several Bignoniaceae species not listed in the e-flora of Pakistan.

Taxon
BignoniaceaeBignoniaceaee0
Outcome
classify several speciese1
Qualifier
not listed in the e-flora of Pakistane1

Verbatim

e0

“anatomical differences among selected species of the family Bignoniaceae”

✓ located verbatim in the source · abstract, characters 63–135 · show in text ↑
e1

“This anatomical examination, using advanced microscopic techniques, is the first to classify several species that are not listed in the e-flora of Pakistan”

✓ located verbatim in the source · abstract, characters 2039–2194 · show in text ↑
Observationauthor interpretationoriginal resultpositivebasis n/a

Claim · model-written summary

Leaf anatomical research has proven valuable for resolving challenging taxonomic issues in Bignoniaceae.

Taxon
BignoniaceaeBignoniaceaee0
Outcome
resolving challenging taxonomic issuese1

Verbatim

e0

“anatomical differences among selected species of the family Bignoniaceae”

✓ located verbatim in the source · abstract, characters 63–135 · show in text ↑
e1

“Leaf anatomical research has proven valuable in resolving challenging taxonomic issues”

✓ located verbatim in the source · abstract, characters 2196–2282 · show in text ↑