Abstract
(1) The addition of adequate amount of trace elements such as B, Fe, Mn, Zn, Cu and Mo to the culture medium showed a remarkable promoting effect on germination of pollen grains of many kinds of plants and a definite suppressing effect on bursting of pollen grains in a hypotonic medium. Promoting effect of all trace elements together was greater than that of boron alone in case of Tradescantia reflexa, Hypericum chinense and Lilium longiflorum. Concentration of trace elements optimal to the germination was about 10 times greater than that in the case of water culture and it lay in the range of 0.5-1.5% basal trace element solution.(2) Effect of absence of particular trace element and comparative effect of boron compounds were examined. Sodium metaborate was more effective than boric acid inTradescantia reflexa andHypericum chinense.(3) Effect of the addition of asparagine to a solution of trace elements was observed with Tradescantia reflexa and Rhododendron lateritium.(4) Optimum concentration of trace elements in the culture media containing various kinds of sugars were determined with Tradescantia reflexa, Hypericum chinense, Lilium longiflorum and Lilium Maximowiczii.(5) Activity of peroxidase and of water uptake became greater by the addition of adequate amount of trace elements to the culture medium.
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Claims 6
Claim · model-written summary
Adequate trace elements promoted pollen germination.
- Taxon
- plantsViridiplantaee0
- Organ / stage
- pollen grainse0
- Treatment
- trace elements such as B, Fe, Mn, Zn, Cu and Moe0
- Outcome
- germination of pollen grainse0
- Direction
- promotinge0
Not reportedComparator
Verbatim
e0“The addition of adequate amount of trace elements such as B, Fe, Mn, Zn, Cu and Mo to the culture medium showed a remarkable promoting effect on germination of pollen grains of many kinds of plants”
Claim · model-written summary
Adequate trace elements suppressed pollen bursting in hypotonic medium.
- Taxon
- plantsViridiplantaee1
- Treatment
- trace elementst0
- Outcome
- bursting of pollen grainse0
- Direction
- suppressinge0
- Qualifier
- in a hypotonic mediume0
Not reportedComparator
Verbatim
e0“a definite suppressing effect on bursting of pollen grains in a hypotonic medium”
t0“Physiological Studies of Pollen, Chiefly, the Effect of Trace Elements on the Germination of Pollen Grains”
e1“many kinds of plants”
Claim · model-written summary
Combined trace elements promoted pollen germination more than boron alone in three species.
- Taxon
- Tradescantia reflexa, Hypericum chinense and Lilium longiflorum
.JPG?width=60)
Lilium longiflorum
Tradescantia ohiensis
Hypericum chinensee0 - Treatment
- all trace elements togethere0
- Outcome
- Promoting effecte0
- Direction
- greatere0
- Comparator
- boron alonee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.JPG?width=500)
Verbatim
e0“Promoting effect of all trace elements together was greater than that of boron alone in case of Tradescantia reflexa, Hypericum chinense and Lilium longiflorum”
Claim · model-written summary
The optimal trace element concentration for germination was about tenfold the water culture concentration.
Verbatim
e0“Concentration of trace elements optimal to the germination was about 10 times greater than that in the case of water culture and it lay in the range of 0.5-1.5% basal trace element solution”
t0“Physiological Studies of Pollen, Chiefly, the Effect of Trace Elements on the Germination of Pollen Grains”
e1“many kinds of plants”
Claim · model-written summary
Sodium metaborate was more effective than boric acid in Tradescantia reflexa and Hypericum chinense.
- Taxon
- Tradescantia reflexa andHypericum chinenseTradescantia ohiensise0
- Treatment
- Sodium metaboratee0
- Outcome
- more effectivee0
- Direction
- more effectivee0
- Comparator
- boric acide0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Sodium metaborate was more effective than boric acid inTradescantia reflexa andHypericum chinense”
Claim · model-written summary
Adequate trace elements increased peroxidase activity and water uptake.
- Taxon
- plantsViridiplantaee1
- Treatment
- addition of adequate amount of trace elementse0
- Gene
- peroxidasee0
- Outcome
- Activity of peroxidase and of water uptakee0
- Direction
- greatere0
Not reportedComparator
Verbatim
e0“Activity of peroxidase and of water uptake became greater by the addition of adequate amount of trace elements to the culture medium”
t0“Physiological Studies of Pollen, Chiefly, the Effect of Trace Elements on the Germination of Pollen Grains”
e1“many kinds of plants”
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