Paper · 2023 · Horticulture Research

Drought stress triggers alterations of adaxial and abaxial stomatal development in basil leaves increasing water-use efficiency

Elisa Driesen; Maurice De Proft; Wouter Saeys

6
claims
13
verbatim quotes
58
citations
2
research areas
✓
Open access · cc-by

Abstract

Abstract The physiological control of stomatal opening by which plants adjust for water availability has been extensively researched. However, the impact of water availability on stomatal development has not received as much attention, especially for amphistomatic plants. Therefore, the acclimation of stomatal development in basil (Ocimum basilicum L.) leaves was investigated. Our results show that leaves developed under water-deficit conditions possess higher stomatal densities and decreased stomatal length for both the adaxial and abaxial leaf sides. Although the stomatal developmental reaction to water deficit was similar for the two leaf surfaces, it was proven that adaxial stomata are more sensitive to water stress than abaxial stomata, with more closed adaxial stomata under water-deficit conditions. Furthermore, plants with leaves containing smaller stomata at higher densities possessed a higher water use efficiency. Our findings highlight the importance of stomatal development as a tool for long-term acclimation to limit water loss, with minimal reduction in biomass production. This highlights the central role that stomata play in both the short (opening) and long-term (development) reaction of plants to water availability, making them key tools for efficient resource use and anticipation of future environmental changes.

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Claims 6

Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

Leaves developed under water-deficit conditions had higher stomatal densities on both the adaxial and abaxial leaf sides.

Taxon
Ocimum basilicumOcimum basilicume0
Organ / stage
adaxial and abaxial leaf sidese1
Treatment
water-deficit conditionse1
Outcome
stomatal densitiese1
Direction
highere1

Not reportedComparator

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

Ocimum basilicum
Ocimum basilicum · TaxonCastielli · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“the acclimation of stomatal development in basil (Ocimum basilicum L.) leaves was investigated”

✓ located verbatim in the source · abstract, characters 284–378 · show in text ↑
e1

“Our results show that leaves developed under water-deficit conditions possess higher stomatal densities and decreased stomatal length for both the adaxial and abaxial leaf sides”

✓ located verbatim in the source · abstract, characters 380–557 · show in text ↑
Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

Leaves developed under water-deficit conditions had decreased stomatal length on both the adaxial and abaxial leaf sides.

Taxon
Ocimum basilicumOcimum basilicume0
Organ / stage
adaxial and abaxial leaf sidese1
Treatment
water-deficit conditionse1
Outcome
stomatal lengthe1
Direction
decreasede1

Not reportedComparator

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

Ocimum basilicum
Ocimum basilicum · TaxonCastielli · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“the acclimation of stomatal development in basil (Ocimum basilicum L.) leaves was investigated”

✓ located verbatim in the source · abstract, characters 284–378 · show in text ↑
e1

“Our results show that leaves developed under water-deficit conditions possess higher stomatal densities and decreased stomatal length for both the adaxial and abaxial leaf sides”

✓ located verbatim in the source · abstract, characters 380–557 · show in text ↑
Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

Under water-deficit conditions adaxial stomata were more closed than abaxial stomata.

Taxon
Ocimum basilicumOcimum basilicume0
Organ / stage
adaxial stomatae2
Treatment
water-deficit conditionse2
Outcome
closed adaxial stomatae2
Direction
more closede2

Not reportedComparator

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

Ocimum basilicum
Ocimum basilicum · TaxonCastielli · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“the acclimation of stomatal development in basil (Ocimum basilicum L.) leaves was investigated”

✓ located verbatim in the source · abstract, characters 284–378 · show in text ↑
e2

“it was proven that adaxial stomata are more sensitive to water stress than abaxial stomata, with more closed adaxial stomata under water-deficit conditions”

✓ located verbatim in the source · abstract, characters 660–815 · show in text ↑
Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

Adaxial stomata were more sensitive to water stress than abaxial stomata in basil.

Taxon
Ocimum basilicumOcimum basilicume0
Organ / stage
adaxial stomatae2
Treatment
water stresse2
Outcome
more sensitive to water stresse2
Direction
more sensitivee2
Comparator
abaxial stomatae2

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

Ocimum basilicum
Ocimum basilicum · TaxonCastielli · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“the acclimation of stomatal development in basil (Ocimum basilicum L.) leaves was investigated”

✓ located verbatim in the source · abstract, characters 284–378 · show in text ↑
e2

“it was proven that adaxial stomata are more sensitive to water stress than abaxial stomata, with more closed adaxial stomata under water-deficit conditions”

✓ located verbatim in the source · abstract, characters 660–815 · show in text ↑
Associationobservedoriginal resultpositivemeasured

Claim · model-written summary

Basil plants with leaves containing smaller stomata at higher densities had a higher water use efficiency.

Taxon
Ocimum basilicumOcimum basilicume0
Organ / stage
leaves containing smaller stomata at higher densitiese3
Outcome
water use efficiencye3
Direction
highere3

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

Ocimum basilicum
Ocimum basilicum · TaxonCastielli · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“the acclimation of stomatal development in basil (Ocimum basilicum L.) leaves was investigated”

✓ located verbatim in the source · abstract, characters 284–378 · show in text ↑
e3

“Furthermore, plants with leaves containing smaller stomata at higher densities possessed a higher water use efficiency”

✓ located verbatim in the source · abstract, characters 817–935 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Drought stress reduced basil biomass production only minimally while stomatal development acclimated to limit water loss.

Taxon
Ocimum basilicumOcimum basilicume0
Treatment
Drought stresst0
Outcome
biomass productione4
Direction
reductione4
Qualifier
minimale4

Not reportedComparator

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

Ocimum basilicum
Ocimum basilicum · TaxonCastielli · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“the acclimation of stomatal development in basil (Ocimum basilicum L.) leaves was investigated”

✓ located verbatim in the source · abstract, characters 284–378 · show in text ↑
e4

“with minimal reduction in biomass production”

✓ located verbatim in the source · abstract, characters 1056–1100 · show in text ↑
t0

“Drought stress triggers alterations of adaxial and abaxial stomatal development in basil leaves increasing water-use efficiency”

✓ located verbatim in the source · title, characters 0–127 · show in text ↑

drought · yield · Ocimum basilicum (basil)Positive and negative results

8 papers: 2 positive, 6 negative or no effect

5 papers in the same direction as this paper · 2 in the opposite direction

  1. positive
  2. positive
  3. negative

4 papers more in this group

See all 8 papers →

Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.