Vine Growth and Fruit Development of 'Pione' Grapes Planted in Root-Restricted Buried and Raised Beds.

The influence of stage of fruit development and plant growth regulators on somatic embryogenesis and the relation of cultivar response on somatic embryogenesis and subsequent plant development have been investigated in eight cultivars of pecan [Carya illinoensis (Wangenh.) C. Koch]. Explants from the micropylar region of the ovule were more embryogenic when removed from fruits in the liquid endosperm stage than were intact ovules from less-mature fruits or from cotyledonary segments of more-mature fruits. Explants conditioned on medium containing auxin alone or auxin + cytokinin produced more somatic embryos than medium containing cytokinin alone. Under the conditions of this study, frequency of embryogenesis, as well as the germination of somatic embryos leading to plant development, indicated appreciable variation among cultivars. Plant development was greatest by far from somatic embryos of `Schley' than other cultivars studied.

Download Full-text

Reproductive Responses of Capsicum annuum to High Temperatures

HortScience ◽

10.21273/hortsci.33.3.543c ◽

1998 ◽

Vol 33 (3) ◽

pp. 543c-543

Author(s):

Ami N. Erickson ◽

Albert H. Markhart

Keyword(s):

Capsicum Annuum ◽

High Temperatures ◽

Fruit Development ◽

Flower Development ◽

Fruit Set ◽

Fruit Production ◽

Yield Reduction ◽

Bud Size ◽

Growth Chambers ◽

Constant Growth

Fruit yield reduction due to high temperatures has been widely observed in Solanaceous crops. Our past experiments have demonstrated that Capsicum annuum cultivars Ace and Bell Boy completely fail to produce fruit when grown at constant 33 °C. However, flowers are produced, continually. To determine which stages of flower development are sensitive to high temperatures, pepper buds, ranging in size from 1 mm to anthesis, were exposed to high temperatures for 6 hr, 48 hr, 5 days, or for the duration of the experiment. Fruit set for each bud size was determined. Exposure to high temperatures at anthesis and at the 2-mm size stage for 2 or more days significantly reduced fruit production. To determine whether inhibition of pollination, inhibition of fertilization, and/or injury to the female or male structures prevents fruit production at high temperatures, flowers from pepper cultivars Ace and Bell Boy were grown until flowers on the 8th or 9th node were 11 mm in length. Plants were divided between 25 °C and 33 °C constant growth chambers for 2 to 4 days until anthesis. At anthesis, flowers from both treatments were cross-pollinated in all combination, and crosses were equally divided between 33 or 25 °C growth chambers until fruit set or flowers abscised. All flower crosses resulted in 80% to 100% fruit set when post-pollination temperatures were 25 °C. However, post-pollination temperatures of 33 °C significantly reduced fruit production. Reduced fruit set by flowers exposed to high temperatures during anthesis and pollination is not a result of inviable pollen or ovule, but an inhibition of fertilization or initial fruit development.

Download Full-text

Molecular and biochemical aspects underlying polyamine modulation of fruit development and ripening

Stewart Postharvest Review ◽

10.2212/spr.2008.2.8 ◽

2008 ◽

Vol 4 (2) ◽

pp. 1-12 ◽

Cited By ~ 4

Keyword(s):

Fruit Development ◽

Fruit Development And Ripening

Download Full-text

Detection of 3-hydroxy-3-methylglutaryl-coenzyme A reductase protein Cm-HMGR during fruit development in melon (Cucumis melo L.)

Theoretical and Applied Genetics ◽

10.1007/s00122-001-0838-4 ◽

2002 ◽

Vol 104 (5) ◽

pp. 779-785 ◽

Cited By ~ 16

Author(s):

T. Kobayashi ◽

S. Kato-Emori ◽

K. Tomita ◽

H. Ezura

Keyword(s):

Fruit Development ◽

Cucumis Melo ◽

Coenzyme A ◽

Cucumis Melo L ◽

Coenzyme A Reductase

Download Full-text

Genome-Wide Identification of the B-BOX Genes that Respond to Multiple Ripening Related Signals in Sweet Cherry Fruit

International Journal of Molecular Sciences ◽

10.3390/ijms22041622 ◽

2021 ◽

Vol 22 (4) ◽

pp. 1622

Author(s):

Yanyan Wang ◽

Zefeng Zhai ◽

Yueting Sun ◽

Chen Feng ◽

Xiang Peng ◽

...

Keyword(s):

Signaling Pathways ◽

Stress Responses ◽

Fruit Development ◽

Sweet Cherry ◽

Anthocyanin Biosynthesis ◽

Expression Patterns ◽

Light Induction ◽

Promoter Regions ◽

Genome Database ◽

Gene Structures

B-BOX proteins are zinc finger transcription factors that play important roles in plant growth, development, and abiotic stress responses. In this study, we identified 15 PavBBX genes in the genome database of sweet cherry. We systematically analyzed the gene structures, clustering characteristics, and expression patterns of these genes during fruit development and in response to light and various hormones. The PavBBX genes were divided into five subgroups. The promoter regions of the PavBBX genes contain cis-acting elements related to plant development, hormones, and stress. qRT-PCR revealed five upregulated and eight downregulated PavBBX genes during fruit development. In addition, PavBBX6, PavBBX9, and PavBBX11 were upregulated in response to light induction. We also found that ABA, BR, and GA3 contents significantly increased in response to light induction. Furthermore, the expression of several PavBBX genes was highly correlated with the expression of anthocyanin biosynthesis genes, light-responsive genes, and genes that function in multiple hormone signaling pathways. Some PavBBX genes were strongly induced by ABA, GA, and BR treatment. Notably, PavBBX6 and PavBBX9 responded to all three hormones. Taken together, BBX proteins likely play major roles in regulating anthocyanin biosynthesis in sweet cherry fruit by integrating light, ABA, GA, and BR signaling pathways.

Download Full-text