Effects of the Ease of Self-pollination on the Vase Life of Cut Eustoma Flowers.

Shimizu, Hiroko; Ichimura, Kazuo

doi:10.2503/jjshs.71.449

Cited by 6 publications

(6 citation statements)

References 7 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…However, the excess of trichomes on floral organs may offer a few disadvantages to cleistogamous plants, in which selfpollination occurs before flower opening. It was reported that the rate of natural self-pollination was negatively correlated with the distance from the stigma to anther (Shimizu and Ichimura, 2002). This could be an explanation why the carpel and stamen of such cleistogamous plants as Arabidopsis and Pisum sativum do not bear branched trichomes.…”

Section: Discussionmentioning

confidence: 92%

Temporal Control of Trichome Distribution by MicroRNA156-TargetedSPLGenes inArabidopsis thaliana

et al. 2010

View full text Add to dashboard Cite

The production and distribution of plant trichomes is temporally and spatially regulated. After entering into the flowering stage, Arabidopsis thaliana plants have progressively reduced numbers of trichomes on the inflorescence stem, and the floral organs are nearly glabrous. We show here that SQUAMOSA PROMOTER BINDING PROTEIN LIKE (SPL) genes, which define an endogenous flowering pathway and are targeted by microRNA 156 (miR156), temporally control the trichome distribution during flowering. Plants overexpressing miR156 developed ectopic trichomes on the stem and floral organs. By contrast, plants with elevated levels of SPLs produced fewer trichomes. During plant development, the increase in SPL transcript levels is coordinated with the gradual loss of trichome cells on the stem. The MYB transcription factor genes TRICHOMELESS1 (TCL1) and TRIPTYCHON (TRY) are negative regulators of trichome development. We show that SPL9 directly activates TCL1 and TRY expression through binding to their promoters and that this activation is independent of GLABROUS1 (GL1). The phytohormones cytokinin and gibberellin were reported to induce trichome formation on the stem and inflorescence via the C2H2 transcription factors GIS, GIS2, and ZFP8, which promote GL1 expression. We show that the GIS-dependent pathway does not affect the regulation of TCL1 and TRY by miR156-targeted SPLs, represented by SPL9. These results demonstrate that the miR156-regulated SPLs establish a direct link between developmental programming and trichome distribution.

show abstract

Section: Discussionmentioning

confidence: 92%

Temporal Control of Trichome Distribution by MicroRNA156-TargetedSPLGenes inArabidopsis thaliana

et al. 2010

View full text Add to dashboard Cite

show abstract

“…A flower with a short distance from the stigma to anther probably selfpollinates easily. Therefore, the distance from the stigma to anther, rate of flower pollination, and the vase life of cut Eustoma flowers were examined (Shimizu and Ichimura, 2002). Unemasculated flowers of 13 cultivars were harvested on the day of anthesis and kept at 23°C.…”

Section: Distance From Stigma To Anthermentioning

confidence: 99%

Postharvest Physiology and Technology of Cut Eustoma Flowers

Shimizu-Yumoto

Ichimura

2010

J. Japan. Soc. Hort. Sci.

Self Cite

View full text Add to dashboard Cite

A long vase life of cut flowers is valued highly by consumers. Cut Eustoma flowers have gained popularity during recent decades in Japan but there are few studies on the postharvest physiology and technology of the flowers. The vase life of cut Eustoma flowers is not long and varies among cultivars. Ethylene is involved in flower senescence and pollination accelerates this process. The Eustoma inflorescence has many flowers and buds; therefore, to improve the postharvest quality of Eustoma inflorescence, promoting bud opening as well as delaying senescence of the open flower are important. This review summarizes the factors affecting vase life and describes effective treatments for cut Eustoma flower stems to extend their vase life.

show abstract

“…We previously reported a negative correlation between the frequency of naturally self-pollinated flowers and the distance from the stigma to anther (Shimizu and Ichimura, 2002). Our assumption that the vase life of non-emasculated flowers was shorter than that of emasculated flowers was verified as the vase life of naturally self-pollinated flowers was slightly shorter than that of emasculated ones (unpublished data).…”

Section: Introductionmentioning

confidence: 86%

“…There are cultivar variations in relation to the longevity of Eustoma flowers (Motozu and Makihara, 2001;Shimizu and Ichimura, 2002). We previously reported a negative correlation between the frequency of naturally self-pollinated flowers and the distance from the stigma to anther (Shimizu and Ichimura, 2002).…”

Section: Introductionmentioning

confidence: 99%

Senescence of Eustoma Flowers as Affected by Pollinated Area of the Stigmatic Surface

Shimizu-Yumoto¹,

Ichimura²

2006

J. Japan. Soc. Hort. Sci.

Self Cite

View full text Add to dashboard Cite

Senescence of Eustoma flowers is accelerated by pollination which is accompanied by an increase in ethylene production by flowers. We investigated the influence of pollinating different areas of the stigmatic surface on senescence in the flowers of 6 Eustoma cultivars. Anthers were removed from the flowers whose stigma had not yet opened. After the stigmas opened, freshly collected pollen from anthers of same cultivar were placed on them. The pollination levels on stigma were all area, 1/8 area or none (control). Senescence of flowers was significantly accelerated by all and 1/8 area pollination compared with the control. All areapollinated flowers wilted significantly earlier than did 1/8 area-pollinated ones in three cultivars. In the remaining three cultivars, senescence of flowers by all area pollination tended to be earlier than that of 1/8 area pollination. In 'Asuka-no-nami' flowers, ethylene production of flowers rapidly increased 1 day after all area pollination. However, in flowers with 1/8 area pollination, ethylene production slowly increased for 3 days after pollination. A large number of pollen tubes reached the base of the style 2 days after pollination in the all area-pollinated flowers, but on 3rd day in the 1/8 area-pollinated flowers. All area-pollinated flowers required silver thiosulfate complex (STS) at high concentration to delay senescence induced by pollination, compared with the 1/8 area-pollinated flowers. These results suggest that in Eustoma flowers, senescence that is induced by pollination, depends on the pollinated area of the stigmatic surface which resulted in ethylene production.

show abstract

Effects of the Ease of Self-pollination on the Vase Life of Cut Eustoma Flowers.

Cited by 6 publications

References 7 publications

Temporal Control of Trichome Distribution by MicroRNA156-TargetedSPLGenes inArabidopsis thaliana

Temporal Control of Trichome Distribution by MicroRNA156-TargetedSPLGenes inArabidopsis thaliana

Postharvest Physiology and Technology of Cut Eustoma Flowers

Senescence of Eustoma Flowers as Affected by Pollinated Area of the Stigmatic Surface

Contact Info

Product

Resources

About