scholarly journals Effect of CCC and BA on the Formation of Potato Tuber in vitro.

1997 ◽  
Vol 66 (4) ◽  
pp. 663-668 ◽  
Author(s):  
Tomohide YAMAMOTO ◽  
Kazuo NAKATA
Keyword(s):  
Potato Tuber

scholarly journals Kemampuan Bakteri Endofit Akar dan Ubi Kentang untuk Menekan Penyakit Busuk Lunak (Erwinia carotovora pv. carotovora) pada Ubi

Agrikultura ◽  
2016 ◽  
Vol 27 (3) ◽  
Author(s):  
Noor Istifadah ◽  
Muhamad Salman Umar ◽  
Sudarjat Sudarjat ◽  
Luciana Djaya
Keyword(s):  
Biological Control ◽  
Potato Tuber ◽  
Endophytic Bacteria ◽  
Erwinia Carotovora ◽  
Soft Rot ◽  
Soft Rot Disease ◽  
Post Harvest ◽  
Rot Disease

ABSTRACTThe abilities of endophytic bacteria from potato roots and tubers to suppress soft rot disease (Erwinia carotovora pv. carotovora) in potato tuberSoft rot disease caused by Erwinia carotovora pv. carotovora is one of limiting factors in cultivation and post harvest of potato. The eco-friendly control measure that can be developed for controlling the diseases is biological control. Microbes that are potential as biological control agents include endophytic bacteria. This paper discussed the results of study examining the potential of endophytic bacteria isolated from roots and tubers of potato to inhibit the growth of E. carotovora pv. carotovora in vitro and suppress soft rot disease in potato tuber. The results showed that among 24 isolates examined, four isolates of endophytic bacteria (one isolate from potato tuber and three isolates from potato roots) inhibited the growth of E. carotovora pv. carotovora in vitro with inhibition zone 3.5-6.8 mm. In the in vivo test, the isolates inhibited the soft rot disease in potato tuber by 71.5-86.4%. The isolate that tended to show relatively better inhibition in vitro and in vivo was isolate from potato tuber which is CK U3 (Lysinibacillus sp.)Keywords: Biological control, Endophytic bacteria, Post-harvest, Potato, Soft rot diseaseABSTRAKPenyakit busuk lunak yang disebabkan bakteri Erwinia carotovora pv. carotovora, merupakan salah satu kendala dalam budidaya dan pascapanen kentang. Cara pengendalian ramah lingkungan yang dapat dikembangkan untuk menekan penyakit tersebut adalah pengendalian biologi. Kelompok mikroba yang berpotensi sebagi agens pengendali biologi adalah bakteri endofit. Artikel ini mendiskusikan potensi isolat bakteri endofit yang berasal dari ubi dan akar kentang untuk menghambat pertumbuhan bakteri E. carotovora pv. carotovora secara in vitro dan menekan perkembangan penyakit busuk lunak pada ubi kentang. Hasil percobaan menunjukkan bahwa diantara 24 isolat bakteri yang diuji, terdapat empat isolat bakteri endofit (satu isolat dari ubi kentang dan tiga isolat dari akar kentang) yang dapat menghambat pertumbuhan bakteri E. carotovora pv. carotovora secara in vitro dengan zona penghambatan sebesar 3,5-6,8 mm. Pada pengujian secara in vivo, isolat-isolat tersebut dapat menekan perkembangan penyakit busuk lunak pada ubi kentang sebesar 71,5-86,4%. Isolat yang cenderung menunjukkan penghambatan relatif lebih baik secara in vitro dan in vivo adalah isolat bakteri endofit asal ubi kentang yaitu isolat CK U3 (Lysinibacillus sp.).Kata Kunci: Pengendalian biologi, Bakteri endofit, Pascapanen, Kentang, Penyakit busuk basah

Activation of Protein Synthesis in Aging Potato Tuber Slices

1971 ◽  
Vol 26 (10) ◽  
pp. 1064-1067 ◽  
Author(s):  
Günter Kahl
Keyword(s):  
Protein Synthesis ◽  
Potato Tuber ◽  
Actinomycin D ◽  
Leucine Incorporation ◽  
Amino Acid Incorporation ◽  
Acid Incorporation ◽  
Fresh Potato ◽  
Polyuridylic Acid ◽  
Storage Organs

Whereas ribosome preparations of freshly sliced potato disks do not show appreciable activity in an in-vitro amino acid incorporation system, aging of the tissue leads to a greatly enhanced incorporation activity which reaches its maximum 24 hours after slicing. If ribosomes from freshly excised disks are provided with polyuridylic acid, their activity in the incorporation of phenylalanine is increased about 8 fold.Moreover, an RNA-fraction can be dissociated by EDTA from ribosomes of aged potato tuber slices, which sediments at 15 —18S, has a base composition different from that of 16S — rRNA, 5S-and 4S —RNA, and is not present on ribosomes of fresh slices. Its appearance is inhibited by actinomycin D and therefore most probably dependent on transcription. This compound, purified from sucrose gradients, enhances in vitro leucine incorporation into peptide material by ribosomes of fresh potato slices.The possibility is discussed that this fraction-among other factors-is responsible for the enhanced protein synthesis after slicing plant storage organs, and is indicative of a general derepression phenomenon in these tissues.

Dynamic proteomic profile of potato tuber during its in vitro development

Plant Science ◽  
2012 ◽  
Vol 195 ◽  
pp. 1-9 ◽  
Author(s):  
Jae Woong Yu ◽  
Jong-Soon Choi ◽  
Chandrama Prakash Upadhyaya ◽  
Sang Oh Kwon ◽  
Mayank Anand Gururani ◽  
...  
Keyword(s):  
Potato Tuber ◽  
Proteomic Profile ◽  
In Vitro Development ◽  
Vitro Development

scholarly journals The usefulness of chitosan and Pythium oligandrum in potato tuber protection against Helminthosporium solani

2008 ◽  
Vol 20 (2) ◽  
pp. 67-74
Author(s):  
Halina Kurzawińska ◽  
Stanisław Mazur
Keyword(s):  
Potato Tuber ◽  
Linear Growth ◽  
Helminthosporium Solani ◽  
Pythium Oligandrum

Abstract The effect of tuber dressing and plant spraying with Biochikol 020 PC (B.A.S. chitosan) and with Polyversum bio-preparation (B.A.S. Pythium oligandrum) on the infestation of stored tubers by Helminthosporium solani was studied. Vitavax 2000 FS (B.A.S. karboxin and thiuram) was used as a standard fungicide. The effect of these preparations applied at three different concentrations on H. solani mycelium linear growth was investigated under in vitro conditions according to the Kowalik and Krechniak method (1961). The application of all tested preparations during potato vegetation resulted in both lower (in comparison to the control) mean infestation degree and lower percent of tubers infected by this pathogen. Results showed that all preparations inhibited H. solani mycelium linear growth.

Verification of Electroporation Models Using the Potato Tuber as In Vitro Simulation

2018 ◽  
Vol 39 (2) ◽  
pp. 224-229
Author(s):  
José Alvim Berkenbrock ◽  
Guilherme Brasil Pintarelli ◽  
Afrânio de Castro Antônio Júnior ◽  
Daniela Ota Hisayasu Suzuki
Keyword(s):  
Potato Tuber ◽  
In Vitro Simulation

Effects of Some Bacillus sp. Isolates on Fusarium spp. in vitro and Potato Tuber Dry Rot Development in vivo

2006 ◽  
Vol 5 (3) ◽  
pp. 283-290 ◽  
Author(s):  
Mejda Daami-Remadi . ◽  
Fakher Ayed . ◽  
Hayfa Jabnoun-Khiareddine . ◽  
Khaled Hibar . ◽  
Mohamed El Mahjoub .
Keyword(s):  
Potato Tuber ◽  
Bacillus Sp ◽  
Fusarium Spp ◽  
Dry Rot
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