Home > IV Asian Horticultural Congress – AHC2023 > The timing of trehalose injection affects the number of flowers and the expression of VvCKX5 in the hybrid grape Vitis labrusca × V. vinifera ‘Shine Muscat’

Articles

The timing of trehalose injection affects the number of flowers and the expression of VvCKX5 in the hybrid grape Vitis labrusca × V. vinifera ‘Shine Muscat’

Article number

1404_165

Pages

1195 – 1200

Language

English

Abstract

Picking excess berries is essential for obtaining high-quality table grapes.
Since this process is labor-intensive, there is a demand for labor-saving horticultural practices.
Trehalose injection into the buds of ‘Shine Muscat’ decreases its number of flowers per bunch, suggesting that the time required for the picking of berries could be cut by trehalose.
However, since this effect varies between individual bunches and trees, studies for stabilizing them are required.
Therefore, the effects of the timing of trehalose injection on the flower number and the expression of cytokinin oxidase/dehydrogenase 5 (VvCKX5, considered a key regulator of flower number) were investigated.
In 2022, three ‘Shine Muscat’ trees in the orchard at Akita Prefectural University in Japan were selected for this study.
On April 26, May 3, and May 10, 10 buds tree^‑1 were injected with 250 μL of 10% trehalose using a microsyringe.
The buds were collected just before the injection and 24 h later with and without the injection; the total RNA was then extracted from them.
The mean number of flowers per bunch produced from the buds injected on May 3 and 10 was significantly lower than that from the control buds (uninjected). The effect of trehalose was most pronounced in buds 10-20 mm in length.
The expression of VvCKX5 in buds collected 24 h after injection on May 10 was significantly lower than that in the control buds.
Although a previous study suggested that the effect of trehalose in controlling the number of berries in wine grapes was related to an increase in the expression of VvCKX5, the results obtained in this study showed that more complex underlying mechanisms may be involved.

Publication

IV Asian Horticultural Congress – AHC2023

Authors

M. Kondo, N. Kitamoto, A. Wakabayashi, R. Sawai, Y. Sato, T. Umebayashi, Y. Yoshida, H. Kanda, H. Imanishi

Keywords

sugar, trehalose, flowering, berry, thinning, cytokinin

Full text

https://doi.org/10.17660/ActaHortic.2024.1404.165

Groups involved

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S. Yamashita | K. Seimiya | K. Yamafuji | T. Taguchi | S. Motoki

182. Estimation of the light extinction coefficients of lateral asparagus ferns using a numerical method

T. Kuroyanagi | H. Yoshikoshi | M. Hikawa-Endo

183. Glycine betaine material affects the growth and yield of asparagus in the long-term harvest production system in a semi-forcing culture

F. Satake | K. Okada | Y. Yoshida | W. Sakata | S. Motoki

184. Mounding increases the rate of thick spears of asparagus

K. Suzuki | Y. Ayabe | A. Kato | S. Motoki

185. Investigation of nutrient solution management in hydroponics using organic fertilizer

T. Endoh | M. Takagaki | P. Suwitchyanon | C. Chaturong

186. Effect of different cultivation methods and environments on the growth and yield of Shimonita-Negi

M. Okabe | K. Obokata | T. Hirose | Y. Hashida

187. Predicting corn salad (Valerianella spp.) weight in a plant factory with artificial lighting (PFAL) using K-Nearest Neighbors algorithm (KNN)

S. Dhammayorddee | C. Chanseetis | A. Kato | M. Takagaki | N. Lookin

188. The effect of water and fertilizer types on growth and yield of supan-supan (Neptunia oleracea) cultivated on flooded Ultisol media

H. Susanti | J. Purnomo | O.A. Kumadawara

189. Effect of low sunlight and high temperature during flower bud differentiation on the cut flower quality of carnation ‘Cherry Tessino’

S. Kamachi | R. Sakai | S. Nagashima | S. Mori

190. Deficit irrigation and fertilizer rates affecting growth, flower quality and physiological changes in tuberous begonia grown in plant factory

C. Inkham | K. Panjama | S. Ruamrungsri

191. Growth and flowering characteristics of Calendula under different light spectra in a controlled environment

M. Munyanont | N. Lu | T. Joilek | D.F. Rachma | M. Takagaki

192. Selection of optimal marigold (Tagetes patula) cultivar as an edible flower in a plant factory

N.Y. Kwak | B.H. Sung | K.P.S. Kumaratenna | Y.Y. Cho

193. Promoting flower yields, photosynthetic pigments and some secondary metabolite in Marguerite daisy (Chrysanthemum frutescens L.) cut flower under the smart farming system by pinching technique

Y. Luekhampa | C. Seelatlao | W. Chareontham | J. Sanitchon | P. Hongpakdee

194. Nutrient deficiencies affect growth and development of vinca

S. Ruamrungsri | C. Inkham | K. Panjama

195. Relationship between Asian ginseng decline and soil chemical property

Md.A.A. Mahmud | Y. Matsubara | T. Ikezawa

196. Influence of different flower vases on the impression of cut flowers

Y. Mitarai

197. Effects of different LED light spectrum on growth and cannabinoid contents of Cannabis sativa L. hybrid ‘KKU’ cultivars under an indoor pot cultivation

P. Nounbunma | P. Hongpakdee | J. Paluka | C. Lapjit

198. Effects of cultivation environmental factors on the growth of the edible cactus (Nopalea cochenillifera) grown under hydroponic conditions

S. Tsuchimoto | K. Okada | K. Kondo | T. Horibe

199. Calcium and magnesium biofortification of the edible cactus Nopalea cochenillifera grown under hydroponic conditions

E. Nishimura | K. Hayashi | T. Horibe

200. Effect of selling area, period, and type on the price of okra (Abelmoschus esculentus L.) in Japan

L. Sato | N. Miyamoto | S. Motoki

201. Comparative analysis of asparagus marketing practices in Europe, North America, and Asia during summer and autumn

S. Yamashita | S. Motoki

202. Edible alleys in the discourse of urban horticulture: a case study on densely built urban renewal districts in Chiayi, Taiwan

T.I. Lee

203. Application of calcium chloride on yield and quality of Capsicum annuum L.

N. Montri | S. Sengseng | R. Deewatthanawong | K. Bunya-atichart

204. Development of a growth state estimation system using a moving camera in strawberry cultivation

S. Matsuo | H. Umeda

205. The impact of adding nanoparticles to the media to speed up the in vitro multiplication stage of banana explants

P. Nugrahani | I.R. Moeljani