Paper · 2024 · HortScience

Morphological Characteristics and Drought Tolerance of the Diploid and Tetraploid Angelonia angustifolia

Yu-Chun Liao; Yun-Shan Tsai; Der-Ming Yeh

13
claims
26
verbatim quotes
3
citations
3
research areas
✓
Open access · cc-by-nc-nd

Abstract

Angelonia ( Angelonia angustifolia ) is an important potted flowering plant or bedding plant widely used in tropical and subtropical regions. However, most Angelonia cultivars have relatively small flowers and demonstrate limited drought tolerance in root-restricted environments such as small containers. Polyploid plants often exhibit larger flowers and enhanced drought tolerance. In this study, Angelonia ‘Serena White’ seeds and ‘Serena Purple’ seedlings were treated with 0.1% and 0.2% colchicine to induce polyploid lines, respectively. The resulting tetraploids had larger pollen and flowers, along with thicker, greener leaves distinguished by serrated edges, longer stomata, and lower stomatal density compared with diploid ‘Serena White’ and ‘Serena Purple’ plants. Both diploid and tetraploid plants subjected to a 20% volumetric water content (VWC) treatment exhibited smaller leaves, higher SPAD-502 readings, and a decreased number of flowers compared with those subjected to 40% VWC treatment. Moreover, tetraploids had higher photosynthetic rates than diploids under both 20% and 40% VWC conditions. When grown in 0.8-L containers, tetraploid plants required fewer watering events and had thicker, erect stems with larger flowers than diploids, even under a 20% VWC treatment. Colchicine-induced polyploidization presents a promising method to potentially enhance drought tolerance in angelonia.

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Claims 13

Observationobservedoriginal resultmeasured

Claim · model-written summary

Tetraploid Angelonia had larger pollen and flowers than diploid plants.

Taxon
Angelonia angustifoliaAngelonia angustifoliat0
Material
tetraploidse1
Outcome
pollen and flowerse1
Direction
largere1
Comparator
diploid ‘Serena White’ and ‘Serena Purple’e1

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

Angelonia angustifolia
Angelonia angustifolia · TaxonThegreenj · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

t0

“Morphological Characteristics and Drought Tolerance of the Diploid and Tetraploid Angelonia angustifolia”

✓ located verbatim in the source · title, characters 0–104 · show in text ↑
e1

“The resulting tetraploids had larger pollen and flowers, along with thicker, greener leaves distinguished by serrated edges, longer stomata, and lower stomatal density compared with diploid ‘Serena White’ and ‘Serena Purple’ plants”

✓ located verbatim in the source · abstract, characters 544–775 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Tetraploid Angelonia had thicker, greener leaves than diploid plants.

Taxon
Angelonia angustifoliaAngelonia angustifoliat0
Material
tetraploidse1
Outcome
leavese1
Direction
thicker, greenere1
Comparator
diploid ‘Serena White’ and ‘Serena Purple’e1

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

Angelonia angustifolia
Angelonia angustifolia · TaxonThegreenj · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

t0

“Morphological Characteristics and Drought Tolerance of the Diploid and Tetraploid Angelonia angustifolia”

✓ located verbatim in the source · title, characters 0–104 · show in text ↑
e1

“The resulting tetraploids had larger pollen and flowers, along with thicker, greener leaves distinguished by serrated edges, longer stomata, and lower stomatal density compared with diploid ‘Serena White’ and ‘Serena Purple’ plants”

✓ located verbatim in the source · abstract, characters 544–775 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Tetraploid Angelonia leaves have serrated edges.

Taxon
Angelonia angustifoliaAngelonia angustifoliat0
Material
tetraploidse1
Organ / stage
leavese1
Outcome
serrated edgese1
Comparator
diploid ‘Serena White’ and ‘Serena Purple’e1

Not reportedDirection

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

Angelonia angustifolia
Angelonia angustifolia · TaxonThegreenj · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

t0

“Morphological Characteristics and Drought Tolerance of the Diploid and Tetraploid Angelonia angustifolia”

✓ located verbatim in the source · title, characters 0–104 · show in text ↑
e1

“The resulting tetraploids had larger pollen and flowers, along with thicker, greener leaves distinguished by serrated edges, longer stomata, and lower stomatal density compared with diploid ‘Serena White’ and ‘Serena Purple’ plants”

✓ located verbatim in the source · abstract, characters 544–775 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Tetraploid Angelonia had longer stomata than diploid plants.

Taxon
Angelonia angustifoliaAngelonia angustifoliat0
Material
tetraploidse1
Outcome
stomatae1
Direction
longere1
Comparator
diploid ‘Serena White’ and ‘Serena Purple’e1

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

Angelonia angustifolia
Angelonia angustifolia · TaxonThegreenj · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

t0

“Morphological Characteristics and Drought Tolerance of the Diploid and Tetraploid Angelonia angustifolia”

✓ located verbatim in the source · title, characters 0–104 · show in text ↑
e1

“The resulting tetraploids had larger pollen and flowers, along with thicker, greener leaves distinguished by serrated edges, longer stomata, and lower stomatal density compared with diploid ‘Serena White’ and ‘Serena Purple’ plants”

✓ located verbatim in the source · abstract, characters 544–775 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Tetraploid Angelonia had lower stomatal density than diploid plants.

Taxon
Angelonia angustifoliaAngelonia angustifoliat0
Material
tetraploidse1
Outcome
stomatal densitye1
Direction
lowere1
Comparator
diploid ‘Serena White’ and ‘Serena Purple’e1

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

Angelonia angustifolia
Angelonia angustifolia · TaxonThegreenj · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

t0

“Morphological Characteristics and Drought Tolerance of the Diploid and Tetraploid Angelonia angustifolia”

✓ located verbatim in the source · title, characters 0–104 · show in text ↑
e1

“The resulting tetraploids had larger pollen and flowers, along with thicker, greener leaves distinguished by serrated edges, longer stomata, and lower stomatal density compared with diploid ‘Serena White’ and ‘Serena Purple’ plants”

✓ located verbatim in the source · abstract, characters 544–775 · show in text ↑
Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

A 20% VWC treatment led to smaller leaves than 40% VWC in diploid and tetraploid Angelonia.

Taxon
Angelonia angustifoliaAngelonia angustifoliat0
Material
diploid and tetraploide2
Treatment
20% volumetric water content (VWC) treatmente2
Outcome
leavese2
Direction
smallere2
Comparator
40% VWC treatmente2

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

Angelonia angustifolia
Angelonia angustifolia · TaxonThegreenj · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

t0

“Morphological Characteristics and Drought Tolerance of the Diploid and Tetraploid Angelonia angustifolia”

✓ located verbatim in the source · title, characters 0–104 · show in text ↑
e2

“Both diploid and tetraploid plants subjected to a 20% volumetric water content (VWC) treatment exhibited smaller leaves, higher SPAD-502 readings, and a decreased number of flowers compared with those subjected to 40% VWC treatment”

✓ located verbatim in the source · abstract, characters 777–1008 · show in text ↑
Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

A 20% VWC treatment led to higher SPAD-502 readings than 40% VWC in diploid and tetraploid Angelonia.

Taxon
Angelonia angustifoliaAngelonia angustifoliat0
Material
diploid and tetraploide2
Treatment
20% volumetric water content (VWC) treatmente2
Outcome
SPAD-502 readingse2
Direction
highere2
Comparator
40% VWC treatmente2

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

Angelonia angustifolia
Angelonia angustifolia · TaxonThegreenj · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

t0

“Morphological Characteristics and Drought Tolerance of the Diploid and Tetraploid Angelonia angustifolia”

✓ located verbatim in the source · title, characters 0–104 · show in text ↑
e2

“Both diploid and tetraploid plants subjected to a 20% volumetric water content (VWC) treatment exhibited smaller leaves, higher SPAD-502 readings, and a decreased number of flowers compared with those subjected to 40% VWC treatment”

✓ located verbatim in the source · abstract, characters 777–1008 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

A 20% VWC treatment decreased flower number compared with 40% VWC in diploid and tetraploid Angelonia.

Taxon
Angelonia angustifoliaAngelonia angustifoliat0
Material
diploid and tetraploide2
Treatment
20% volumetric water content (VWC) treatmente2
Outcome
number of flowerse2
Direction
decreasede2
Comparator
40% VWC treatmente2

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

Angelonia angustifolia
Angelonia angustifolia · TaxonThegreenj · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

t0

“Morphological Characteristics and Drought Tolerance of the Diploid and Tetraploid Angelonia angustifolia”

✓ located verbatim in the source · title, characters 0–104 · show in text ↑
e2

“Both diploid and tetraploid plants subjected to a 20% volumetric water content (VWC) treatment exhibited smaller leaves, higher SPAD-502 readings, and a decreased number of flowers compared with those subjected to 40% VWC treatment”

✓ located verbatim in the source · abstract, characters 777–1008 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Tetraploid Angelonia had higher photosynthetic rates than diploids under both 20% and 40% VWC.

Taxon
Angelonia angustifoliaAngelonia angustifoliat0
Material
tetraploidse3
Treatment
20% and 40% VWC conditionse3
Outcome
photosynthetic ratese3
Direction
highere3
Comparator
diploidse3

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

Angelonia angustifolia
Angelonia angustifolia · TaxonThegreenj · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

t0

“Morphological Characteristics and Drought Tolerance of the Diploid and Tetraploid Angelonia angustifolia”

✓ located verbatim in the source · title, characters 0–104 · show in text ↑
e3

“Moreover, tetraploids had higher photosynthetic rates than diploids under both 20% and 40% VWC conditions”

✓ located verbatim in the source · abstract, characters 1010–1115 · show in text ↑
Observationobservedoriginal resultpositivemeasured

Claim · model-written summary

Tetraploid Angelonia required fewer watering events in 0.8-L containers than diploids.

Taxon
Angelonia angustifoliaAngelonia angustifoliat0
Material
tetraploid plantse4
Outcome
watering eventse4
Direction
fewere4
Comparator
diploidse4
Setting
0.8-L containerse4

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

Angelonia angustifolia
Angelonia angustifolia · TaxonThegreenj · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

t0

“Morphological Characteristics and Drought Tolerance of the Diploid and Tetraploid Angelonia angustifolia”

✓ located verbatim in the source · title, characters 0–104 · show in text ↑
e4

“When grown in 0.8-L containers, tetraploid plants required fewer watering events and had thicker, erect stems with larger flowers than diploids, even under a 20% VWC treatment”

✓ located verbatim in the source · abstract, characters 1117–1292 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Tetraploid Angelonia had thicker, erect stems than diploids in 0.8-L containers.

Taxon
Angelonia angustifoliaAngelonia angustifoliat0
Material
tetraploid plantse4
Outcome
stemse4
Direction
thicker, erecte4
Comparator
diploidse4
Setting
0.8-L containerse4

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

Angelonia angustifolia
Angelonia angustifolia · TaxonThegreenj · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

t0

“Morphological Characteristics and Drought Tolerance of the Diploid and Tetraploid Angelonia angustifolia”

✓ located verbatim in the source · title, characters 0–104 · show in text ↑
e4

“When grown in 0.8-L containers, tetraploid plants required fewer watering events and had thicker, erect stems with larger flowers than diploids, even under a 20% VWC treatment”

✓ located verbatim in the source · abstract, characters 1117–1292 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Tetraploid Angelonia had larger flowers than diploids even under a 20% VWC treatment.

Taxon
Angelonia angustifoliaAngelonia angustifoliat0
Material
tetraploid plantse4
Outcome
flowerse4
Direction
largere4
Qualifier
even under a 20% VWC treatmente4
Comparator
diploidse4
Setting
0.8-L containerse4

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

Angelonia angustifolia
Angelonia angustifolia · TaxonThegreenj · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

t0

“Morphological Characteristics and Drought Tolerance of the Diploid and Tetraploid Angelonia angustifolia”

✓ located verbatim in the source · title, characters 0–104 · show in text ↑
e4

“When grown in 0.8-L containers, tetraploid plants required fewer watering events and had thicker, erect stems with larger flowers than diploids, even under a 20% VWC treatment”

✓ located verbatim in the source · abstract, characters 1117–1292 · show in text ↑
Recommendationhypothesisoriginal resultpositivebasis n/a

Claim · model-written summary

Colchicine-induced polyploidisation is a promising method that could enhance drought tolerance in angelonia.

Taxon
angeloniaAngeloniae5
Treatment
Colchicine-induced polyploidizatione5
Outcome
drought tolerancee5

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

Angelonia
Angelonia · Taxon · picture of the genus (one of its species)Thegreenj · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Angelonia ( Angelonia angustifolia ) is an important potted flowering plant or bedding plant”

✓ located verbatim in the source · abstract, characters 0–92 · show in text ↑
e5

“Colchicine-induced polyploidization presents a promising method to potentially enhance drought tolerance in angelonia”

✓ located verbatim in the source · abstract, characters 1294–1411 · show in text ↑