Relations entre le développement défectueux des ovaires et l'involution des ovules chez &lt;em&gt;Vitis vinifera&lt;/em&gt; L. var. Chardonnay

Fougère-Rifot, Monique; Brun, O.; Bouard, Jacques

doi:10.20870/oeno-one.1993.27.2.1176

Cited by 4 publications

(6 citation statements)

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“…Another factor affecting fertilisation and fruitset in grapevines is the functionality of the embryo sac, including the synergid cells, which are demonstrated to have a crucial role in attracting the pollen tube (Fougère‐Rifot et al . , Ebadi ). Various aberrations of ovule development can cause poor pollen tube growth and fruitset in grapevines (Fougère‐Rifot et al .…”

Section: Resultsmentioning

confidence: 99%

Differential fruitset between grapevine cultivars is related to differences in pollen viability and amine concentration in flowers

Baby

Gilliham

Tyerman

et al. 2015

Australian Journal of Grape and Wine Research

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Background and Aims Reproductive capacity among grapevine cultivars varies considerably and impacts yield. Bioactive amines are reported to be involved in many aspects of plant reproductive physiology. We aimed to examine the association between the reproductive performance of cultivars and the concentration of amines in the reproductive organs. Methods and Results The reproductive performance of Shiraz, Merlot and Cabernet Sauvignon was assessed by determining fruitset, coulure index, millerandage index, pollen tube growth and stigma receptivity. Endogenous concentration of amines in flowers and berries was measured. Poor reproductive performance exhibited by Cabernet Sauvignon and Merlot compared with that of Shiraz was correlated with poor pollen viability. Amine profiles in the flowers and berries varied significantly among cultivars. A significantly higher concentration of diaminopropane was found in Merlot and Cabernet Sauvignon and correlated with a higher proportion of underdeveloped berries. An aromatic amine phenylethylamine was found to be the major free amine in the flowers of Merlot, a cultivar susceptible to poor fruitset. Conclusion Variable reproductive performance exhibited by grapevine cultivars is related to differences in pollen viability and amine concentration in the reproductive organs. Significance of the Study A better understanding of the association between reproductive performance and amines in the reproductive organs of grapevines has been achieved.

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Section: Resultsmentioning

confidence: 99%

Differential fruitset between grapevine cultivars is related to differences in pollen viability and amine concentration in flowers

Baby

Gilliham

Tyerman

et al. 2015

Australian Journal of Grape and Wine Research

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show abstract

“…setting. Fougère-Rifot et al (1993) have concluded that poor fruit-set may be due to aberrant ovule development, either during meiosis, when ovule abortion is frequent, or later when pollination and fertilisation might occur but fail because of cellular defects (involution) within the ovule. In Shiraz the trend for berry number and 'sinker'-seed number to show similar trends in their response to the applied treatments was similar but less pronounced than in Chardonnay; this is not surprising because this cultivar showed a lesser overall response to the low temperature treatment.…”

Section: Discussionmentioning

confidence: 99%

Fruit-set on small Chardonnay and Shiraz vines grown under varying temperature regimes between budburst and flowering

Ebadi

Coombe

May

1995

Aust J Grape Wine Res

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Small Chardonnay and Shiraz vines were grown under controlled conditions at 25°/20°C day/night temperatures but transferred for one week to 17°/14°C or 12°/9°C at four stages of growth between budburst and flowering. In Chardonnay, half the vines were given supplementary pollination with pollen produced under favourable conditions. Per cent fruit‐set and berry number per bunch of Chardonnay were reduced by about one third to one half by 12°/9°C, applied just before and at the early stage of flowering. At these stages, and with this low‐temperature treatment, supplementary pollination had significant positive effects. Total seed number per berry was not affected by treatment, but the proportion of hollow seeds increased in the treatments which suffered reduced set. This resulted in a positive relation between the number of functional seeds per berry and the number of berries per bunch. In Shiraz, the differences between the various treatment means were small and mostly not significant. It is concluded that the reduction in fruit‐set of Chardonnay due to cool temperatures near flowering is due to detrimental effects on both pollen and ovules.

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“…The situation concerning the state of tannin vacuoles cannot be compared because tannin evolution seems to be determined at a stage preceding the observations in the present study. Fougère-Rifot et al (1993) also stated that "in Chardonnay, at the time of pollination, we found only rarely an ovary with more than one healthy ovule". In the present experiment there were about 50% of all Control ovaries with four normal ovules.…”

mentioning

confidence: 83%

Effect of low temperature near flowering time on ovule development and pollen tube growth in the grapevine (Vitis vinifera L.), cvs Chardonnay and Shiraz

Ebadi

May

Sedgley

et al. 1995

Aust J Grape Wine Res

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To study ovule development, small Chardonnay and Shiraz vines were grown in pots under controlled conditions at 25°/20°C day/night temperature until flowering or were transferred to 12°/9°C two days before flowering and then returned to 25°/20°C after one week. The ovules of flowers at three positions within the inflorescence were excised on the day after they had opened. The ovules exposed to the lower temperatures tended to be smaller and less advanced in development, even when otherwise normal, especially on Chardonnay, and the ovules of king flowers tended to be larger than those of the other flowers. Over half of the ovules of Chardonnay exposed to the low temperatures were abnormal (with abnormal or no embryo sacs, and some also having a degenerated nucellus) while 35% of the Shiraz ovules were without normal embryo sacs. To study pollination and pollen tube growth, vines similar to those of the ovule study were exposed to 12°/9°C two days before or on the day of flowering. In the pistils exposed to low temperature, a reduction occurred in the number of pollen tubes present in the lower ovary on days 2 and 4 after flowering, from about four to almost nil in Chardonnay, but a smaller reduction occurred in Shiraz. In the absence of cool temperatures, pollen tubes penetrated on average less than one ovule per ovary in Chardonnay and about one ovule per ovary in Shiraz. It is concluded that temperature sensitivity to fruit‐set is a varietal characteristic, expressing itself in quantitative differences in the damage imparted to the structure of the ovules and the function of the pollen.

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Relations entre le développement défectueux des ovaires et l'involution des ovules chez <em>Vitis vinifera</em> L. var. Chardonnay

Cited by 4 publications

References 0 publications

Differential fruitset between grapevine cultivars is related to differences in pollen viability and amine concentration in flowers

Differential fruitset between grapevine cultivars is related to differences in pollen viability and amine concentration in flowers

Fruit-set on small Chardonnay and Shiraz vines grown under varying temperature regimes between budburst and flowering

Effect of low temperature near flowering time on ovule development and pollen tube growth in the grapevine (Vitis vinifera L.), cvs Chardonnay and Shiraz

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