Abstract
Styles of V. rotundifolia are uniformly thick from stigma to the ovary and one and one-half times longer than that of V. vinifera. The differences in the length of styles has nothing to do in the failure of crossing rotundifolia female (2n=40) with vinifera male (2n=38), since the pollen tubes of vinifera penetrate the entire style and in some cases the ovules of rotundifolia pistils in the duration of time as control.The absence of swelling of the ovaries even four days after cross-pollination with vinifera and secondly the abscisson of pollinated as well as non-pollinated pistils at about the same time suggests that fertilization does not occur.The complete failure of crossing, therefore, must reside in the cytoplasm of either embryo-sac or/and maternal tissue surrounding the embryo-sac.
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Claims 7
Claim · model-written summary
V. rotundifolia styles are uniformly thick and one and one-half times longer than those of V. vinifera.
- Taxon
- V. rotundifolia
Vitis rotundifoliae0 - Organ / stage
- Stylese0
- Outcome
- uniformly thick from stigma to the ovarye0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Styles of V. rotundifolia are uniformly thick from stigma to the ovary and one and one-half times longer than that of V. vinifera”
Claim · model-written summary
V. rotundifolia styles were one and one-half times longer than V. vinifera styles.
- Taxon
- V. rotundifoliaVitis rotundifoliae0
- Organ / stage
- Stylese0
- Outcome
- longere0
- Direction
- longere0
- Value
- one and one-half timese0
- Comparator
- V. viniferae0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Styles of V. rotundifolia are uniformly thick from stigma to the ovary and one and one-half times longer than that of V. vinifera”
Claim · model-written summary
V. vinifera pollen tubes traversed the entire V. rotundifolia style and sometimes reached its ovules within the control duration.
- Taxon
- Vitis rotundifoliaVitis rotundifoliat0
- Organ / stage
- ovulese0
- Outcome
- pollen tubes of vinifera penetrate the entire style and in some cases the ovules of rotundifolia pistilse0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the pollen tubes of vinifera penetrate the entire style and in some cases the ovules of rotundifolia pistils in the duration of time as control”
t0“Vitis vinifera Linn. and Vitis rotundifolia Michx”
Claim · model-written summary
Ovaries did not swell four days after cross-pollination with vinifera.
- Taxon
- Vitis rotundifoliaVitis rotundifoliat0
- Organ / stage
- ovariese0
- Outcome
- absence of swelling of the ovariese0
- Qualifier
- four days after cross-pollination with viniferae0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The absence of swelling of the ovaries even four days after cross-pollination with vinifera”
t0“Vitis vinifera Linn. and Vitis rotundifolia Michx”
Claim · model-written summary
Pollinated and non-pollinated V. rotundifolia pistils abscised at about the same time.
- Taxon
- Vitis rotundifoliaVitis rotundifoliat0
- Organ / stage
- pistilse0
- Outcome
- abscisson of pollinated as well as non-pollinated pistilse0
- Qualifier
- at about the same timee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“abscisson of pollinated as well as non-pollinated pistils at about the same time”
t0“Vitis vinifera Linn. and Vitis rotundifolia Michx”
Claim · model-written summary
The authors infer that fertilization does not occur in the failed cross.
- Taxon
- Vitis rotundifoliaVitis rotundifoliat0
- Outcome
- fertilization does not occure0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“suggests that fertilization does not occur”
t0“Vitis vinifera Linn. and Vitis rotundifolia Michx”
Claim · model-written summary
The authors attribute complete crossing failure to the cytoplasm of the embryo sac or surrounding maternal tissue.
- Taxon
- Vitis rotundifoliaVitis rotundifoliat0
- Outcome
- complete failure of crossinge0
- Qualifier
- cytoplasm of either embryo-sac or/and maternal tissue surrounding the embryo-sace0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The complete failure of crossing, therefore, must reside in the cytoplasm of either embryo-sac or/and maternal tissue surrounding the embryo-sac”
t0“Vitis vinifera Linn. and Vitis rotundifolia Michx”