Paper · 1981 · Annals of Botany

Modification of Leaf Formation by Cytokinin and Chlormequat (CCC) in Vitis

C. SRINIVASAN; M. G. MULLINS

7
claims
11
verbatim quotes
3
citations
2
research areas
—
Not open access

Abstract

Application of the cytokinin, 6-(benzylamino)-9-(2-tetrahydropyrany1)-9H-purine (PBA, 1mM) and 2-chloroethyl trimethyl ammonium chloride (chlormequat; 3 mM), a growth retardant, to grapevines induced the formation of fused leaves (two laminae and two petioles) and double leaves (two separate petioles each with a single lamina). Double leaves were found in Vitis vinifera L. seedlings, in Vitis riparia and in Muscadinia (Vitis) rotundifolia. In some of the treated vines, leaves arose with opposite phyllotaxy. Other anomalies included production of two opposite axillary buds in axils of opposite leaves and production of two tendrils per node. Some tendrils grew into shoots. In Muscat of Alexandria, application of GA3 (3 μM, 15 μM), followed by an application of chlormequat (0.4 mM, 1.2 mM), led to a marked reduction in the extension growth of axillary shoots.

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Claims 7

Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

PBA and chlormequat induced fused and double grapevine leaves.

Taxon
grapevinesVitise0
Treatment
PBA, 1mMe0
Outcome
fused leaves (two laminae and two petioles) and double leaves (two separate petioles each with a single lamina)e0
Qualifier
chlormequat; 3 mMe0

Not reportedComparatorDirection

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

Vitis
Vitis · Taxon · picture of the genus (one of its species)Victor M. Vicente Selvas · Public domain · Wikimedia Commons ↗

Verbatim

e0

“Application of the cytokinin, 6-(benzylamino)-9-(2-tetrahydropyrany1)-9H-purine (PBA, 1mM) and 2-chloroethyl trimethyl ammonium chloride (chlormequat; 3 mM), a growth retardant, to grapevines induced the formation of fused leaves (two laminae and two petioles) and double leaves (two separate petioles each with a single lamina).”

✓ located verbatim in the source · abstract, characters 0–329 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Double leaves occurred in Vitis vinifera seedlings, Vitis riparia, and Muscadinia rotundifolia.

Taxon
Vitis vinifera L.Vitis viniferae0
Outcome
Double leavese0
Qualifier
Vitis riparia and in Muscadinia (Vitis) rotundifoliae0

Not reportedDirection

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

Vitis vinifera
Vitis vinifera · TaxonDarijanus · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Double leaves were found in Vitis vinifera L. seedlings, in Vitis riparia and in Muscadinia (Vitis) rotundifolia.”

✓ located verbatim in the source · abstract, characters 330–443 · show in text ↑
Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

Some treated vines formed leaves with opposite phyllotaxy.

Taxon
vinese0
Treatment
treatede0
Outcome
leaves arose with opposite phyllotaxye0

Not reportedComparatorDirection

Verbatim

e0

“In some of the treated vines, leaves arose with opposite phyllotaxy.”

✓ located verbatim in the source · abstract, characters 444–512 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Treated vines had two opposite axillary buds in opposite leaf axils.

Taxon
VitisVitist0
Outcome
two opposite axillary buds in axils of opposite leavese0

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

Vitis
Vitis · Taxon · picture of the genus (one of its species)Victor M. Vicente Selvas · Public domain · Wikimedia Commons ↗

Verbatim

e0

“Other anomalies included production of two opposite axillary buds in axils of opposite leaves and production of two tendrils per node.”

✓ located verbatim in the source · abstract, characters 513–647 · show in text ↑
t0

“Vitis”

✓ located verbatim in the source · title, characters 69–74 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Treated vines had two tendrils per node.

Taxon
VitisVitist0
Outcome
two tendrils per nodee0

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

Vitis
Vitis · Taxon · picture of the genus (one of its species)Victor M. Vicente Selvas · Public domain · Wikimedia Commons ↗

Verbatim

e0

“Other anomalies included production of two opposite axillary buds in axils of opposite leaves and production of two tendrils per node.”

✓ located verbatim in the source · abstract, characters 513–647 · show in text ↑
t0

“Vitis”

✓ located verbatim in the source · title, characters 69–74 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Some grapevine tendrils grew into shoots.

Taxon
VitisVitist0
Outcome
tendrils grew into shootse0

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

Vitis
Vitis · Taxon · picture of the genus (one of its species)Victor M. Vicente Selvas · Public domain · Wikimedia Commons ↗

Verbatim

e0

“Some tendrils grew into shoots.”

✓ located verbatim in the source · abstract, characters 648–679 · show in text ↑
t0

“Vitis”

✓ located verbatim in the source · title, characters 69–74 · show in text ↑
Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

GA3 followed by chlormequat markedly reduced axillary shoot extension growth in Muscat of Alexandria.

Taxon
VitisVitist0
Material
Muscat of Alexandriae0
Treatment
GA3 (3 μM, 15 μM), followed by an application of chlormequat (0.4 mM, 1.2 mM)e0
Outcome
extension growth of axillary shootse0
Direction
reductione0

Not reportedComparator

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

Vitis
Vitis · Taxon · picture of the genus (one of its species)Victor M. Vicente Selvas · Public domain · Wikimedia Commons ↗

Verbatim

e0

“In Muscat of Alexandria, application of GA3 (3 μM, 15 μM), followed by an application of chlormequat (0.4 mM, 1.2 mM), led to a marked reduction in the extension growth of axillary shoots.”

✓ located verbatim in the source · abstract, characters 680–868 · show in text ↑
t0

“Vitis”

✓ located verbatim in the source · title, characters 69–74 · show in text ↑