User profiles for Atiako Kwame Acheampong

Atiako Kwame Acheampong

Director of R&D, Opti-Harvest Inc
Verified email at mail.huji.ac.il
Cited by 683

Abscisic acid (ABA) regulates grape bud dormancy, and dormancy release stimuli may act through modification of ABA metabolism

C Zheng, T Halaly, AK Acheampong… - Journal of …, 2015 - academic.oup.com
In warm-winter regions, induction of dormancy release by hydrogen cyanamide (HC) is
mandatory for commercial table grape production. Induction of respiratory stress by HC leads to …

Gibberellin metabolism in Vitis vinifera L. during bloom and fruit-set: functional characterization and evolution of grapevine gibberellin oxidases

…, D Masuero, AK Acheampong… - Journal of …, 2013 - academic.oup.com
Gibberellins (GAs) are involved in the regulation of flowering and fruit-set in grapes (Vitis
vinifera L.), but the molecular mechanisms behind this process are mostly unknown. In this work…

Distinct gibberellin functions during and after grapevine bud dormancy release

C Zheng, A Kwame Acheampong, Z Shi… - Journal of …, 2018 - academic.oup.com
The molecular mechanism regulating dormancy release in grapevine buds is as yet unclear.
It has been hypothesized that (i) abscisic acid (ABA) represses bud–meristem activity; (ii) …

Abscisic acid catabolism enhances dormancy release of grapevine buds

C Zheng, AK Acheampong, Z Shi… - Plant, Cell & …, 2018 - Wiley Online Library
The molecular mechanism regulating dormancy release in grapevine buds is as yet unclear.
It was formerly proposed that dormancy is maintained by abscisic acid (ABA)‐mediated …

EXO70D isoforms mediate selective autophagic degradation of type-A ARR proteins to regulate cytokinin sensitivity

AK Acheampong, C Shanks… - Proceedings of the …, 2020 - National Acad Sciences
The phytohormone cytokinin influences many aspects of plant growth and development,
several of which also involve the cellular process of autophagy, including leaf senescence, …

Functional characterization and developmental expression profiling of gibberellin signalling components in Vitis vinifera

AK Acheampong, J Hu, A Rotman… - Journal of …, 2015 - academic.oup.com
Gibberellins (GAs) regulate numerous developmental processes in grapevine (Vitis vinifera)
such as rachis elongation, fruit set, and fruitlet abscission. The ability of GA to promote berry …

The Solanum tuberosum KST1 partial promoter as a tool for guard cell expression in multiple plant species

…, B Ben-Zvi, A Egbaria, AK Acheampong… - Journal of …, 2017 - academic.oup.com
To date, guard cell promoters have been examined in only a few species, primarily annual
dicots. A partial segment of the potato (Solanum tuberosum) KST1 promoter (KST1 partial …

[PDF][PDF] Genetic characterization of Ghanaian avocados using microsatellite markers

AK Acheampong, R Akromah, FA Ofori… - Journal of the …, 2008 - avocadosource.com
The origin, horticultural race and genetic relationship among Ghanaian avocado (Persea
americana Mill.) seedlings were studied. A population of 172 avocado samples, selected from …

Gibberellin induced shot berry formation in cv. Early Sweet is a direct consequence of high fruit set

…, Z Shi, C Zheng, AK Acheampong - Horticulture …, 2020 - academic.oup.com
The ‘seedless’ table grape industry relies mainly on stenospermocarpic cultivars, in which
endosperm abortion results in berries with seed rudiments and low levels of bioactive …

ABA application during flowering and fruit set reduces berry number and improves cluster uniformity

…, A Mugzach, AK Acheampong… - … Journal of Enology …, 2017 - Am Soc Enol Viticulture
The major drawback of the early ripening Vitis vinifera cv. Early Sweet is its cluster compactness
and significant variability in berry size. Here, we tested the ability of abscisic acid (ABA) …