24 lines
2.2 KiB
Plaintext
24 lines
2.2 KiB
Plaintext
%0 Journal Article
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%A Ghannad, Rezvan
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%A Akbari, Forough
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%A Madadkar Haghjou, Maryam
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%T Effect of blue-green and green algae Spirulina, Chlorella, Dunaliella, and minerals on the stimulation of metabolic and biochemical processes of germination in Dracocephalum kotschyi Boiss. seeds
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%J Nova Biologica Reperta
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%V 3
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%N 4
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%U http://nbr.khu.ac.ir/article-1-2791-en.html
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%R 10.21859/acadpub.nbr.3.4.295
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%D 2017
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%K algae, Dracocephalum, growth indices, metabolic processes,
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%X The effects of some pretreatments including blue-green and green algae and minerals on the induction of me-tabolic and biochemical process of germination were studied in Dracocephalum kotschyi Boiss. seeds. The seeds were pretreated with green algae Spirulina platensis, Chlorella vulgaris and Dunaliella bardawil or D. IR-1 (Isolated from Gave-Khooni-salt marsh) and modified Johnson nutrient medium. Dunaliella species belong to salt marshs and waters, hence their medium was prepared by means of 0.6 % NaCl. Spirulinachr('39')s nutrient medium (NM) included 0.1% NaCl. The activities of α-amylase, ß-amylase, dehydrogenase, content of total sugar, reducing sugars and total protein (all we-re measured after priming) increased in comarsion with control. Treatment without NaCl and the treatment with 0.1 % NaCl caused the highest amount of the parameters mentioned. In the presence of salt (often at 0.6 % NaCl), algae could not improve and increase the parameters. In contrast, in the absence of salt, the positive effects of algae increased. Ge-rmination indices and length of shoots and roots which were measured after sowing the seeds into Petri-dishes, showed some positive effects regarding the pretreatments. Spirulina cells filteration with or without NM (including 0.1% NaCl) caused the highest activities in α-amylase and ß-amylase and the highest amount of total sugar and FGP. Chlorella filt-eration led to the increment of dehydrogenase activity and also the rootchr('39')s lenght. Dunaliella cells filteration in NM (without salt) increased α-amylase and ß-amylase activities and the reducing sugars.
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%> http://nbr.khu.ac.ir/article-1-2791-en.pdf
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%P 295-307
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%& 295
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%!
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%9 Original Article
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%L A-10-81-29
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%+
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%G eng
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%@ 2423-6330
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%[ 2017 |