Abstract
An attempt was made to evaluate the allelopathic potential of an exotic tree species,Melaleuca leucadendron L. using mung bean (Vigna radiata L.) seeds as responsive bioassay material. This was recorded in terms of the plant extract and plant leachate-induced changes of seed germination behaviour, the levels of DNA and RNA as well as amylase activity in the seed kernels. The results of the present investigation clearly revealed that pretreatment of mung bean seeds with various concentrations [1:1 and 1:2 (w/v)] of M. leucadendron bark extract, leaf extract and leaf leachates for 24 h duration, significantly reduced percentage seed germination and increased the T50 hours. Levels of DNA and RNA were also significantly reduced with concomitant increase of amylase activity in mung bean seed samples pretreated with the bark extract, leaf extract and leaf leachates of M. leucadendron. Tender bark extract and leaf extract showed more inhibitory action on mung bean seed than leaf leachates. Putative allelochemical-induced inhibitory effect, that is, reduction of seed germinability along with stimulation of amylase activity in seeds, being the important allelopathic indices, it can be concluded that M. leucadendron can potentially render allelopathic action on the experimental bioassay material. Key words: Allelopathic potential, Melaleuca leucadendron, mung bean, seed germination, DNA and RNA levels, amylase activity.
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Claims 7
Claim · model-written summary
Melaleuca bark extract significantly reduced mung bean seed germination.
- Taxon
- mung bean
.jpg?width=60)
Vigna radiatae0 - Treatment
- M. leucadendron bark extracte0
- Interactor
- M. leucadendrone0other
- Outcome
- percentage seed germinatione0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e0“pretreatment of mung bean seeds with various concentrations [1:1 and 1:2 (w/v)] of M. leucadendron bark extract, leaf extract and leaf leachates for 24 h duration, significantly reduced percentage seed germination and increased the T50 hours.”
Claim · model-written summary
Melaleuca leaf extract significantly reduced mung bean seed germination.
- Taxon
- mung beanVigna radiatae0
- Treatment
- leaf extracte0
- Interactor
- M. leucadendrone0other
- Outcome
- percentage seed germinatione0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“pretreatment of mung bean seeds with various concentrations [1:1 and 1:2 (w/v)] of M. leucadendron bark extract, leaf extract and leaf leachates for 24 h duration, significantly reduced percentage seed germination and increased the T50 hours.”
Claim · model-written summary
Melaleuca leaf leachates significantly reduced mung bean seed germination.
- Taxon
- mung beanVigna radiatae0
- Treatment
- leaf leachatese0
- Interactor
- M. leucadendrone0other
- Outcome
- percentage seed germinatione0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“pretreatment of mung bean seeds with various concentrations [1:1 and 1:2 (w/v)] of M. leucadendron bark extract, leaf extract and leaf leachates for 24 h duration, significantly reduced percentage seed germination and increased the T50 hours.”
Claim · model-written summary
The Melaleuca preparations increased mung bean T50 hours.
- Taxon
- mung beanVigna radiatae0
- Treatment
- M. leucadendron bark extract, leaf extract and leaf leachatese0
- Interactor
- M. leucadendrone0other
- Outcome
- T50 hourse0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“pretreatment of mung bean seeds with various concentrations [1:1 and 1:2 (w/v)] of M. leucadendron bark extract, leaf extract and leaf leachates for 24 h duration, significantly reduced percentage seed germination and increased the T50 hours.”
Claim · model-written summary
Melaleuca preparations significantly reduced DNA and RNA levels in mung bean seeds.
- Taxon
- mung beanVigna radiatae0
- Treatment
- bark extract, leaf extract and leaf leachates of M. leucadendrone0
- Interactor
- M. leucadendrone0other
- Outcome
- Levels of DNA and RNAe0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Levels of DNA and RNA were also significantly reduced with concomitant increase of amylase activity in mung bean seed samples pretreated with the bark extract, leaf extract and leaf leachates of M. leucadendron.”
Claim · model-written summary
Melaleuca preparations increased amylase activity in mung bean seeds.
- Taxon
- mung beanVigna radiatae0
- Treatment
- bark extract, leaf extract and leaf leachates of M. leucadendrone0
- Interactor
- M. leucadendrone0other
- Outcome
- amylase activitye0
- Direction
- increasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Levels of DNA and RNA were also significantly reduced with concomitant increase of amylase activity in mung bean seed samples pretreated with the bark extract, leaf extract and leaf leachates of M. leucadendron.”
Claim · model-written summary
Tender bark and leaf extracts inhibited mung bean seeds more than leaf leachates.
- Taxon
- mung beanVigna radiatae0
- Treatment
- Tender bark extract and leaf extracte0
- Outcome
- inhibitory actione0
- Direction
- more inhibitorye0
- Comparator
- leaf leachatese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Tender bark extract and leaf extract showed more inhibitory action on mung bean seed than leaf leachates.”
The same questions in other papers
botanical · physiology: enzyme activity · Vigna radiata (mung bean)Positive and negative results
1 in the opposite direction
- positive
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58 papers in the same direction as this paper · 42 in the opposite direction · 1 reporting no difference from an alternative
- negative
- negative
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98 papers more in this group
See all 102 papers →Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.