EurekaMag.com logo
+ Site Statistics
References:
48,253,228
Abstracts:
22,798,842
+ Resolve Accession
+ Subscribe to Site Feeds
EurekaMag Most Shared ContentMost Shared
EurekaMag PDF Full Text ContentPDF Full Text
EurekaMag PDF Full Text Supply ServicePDF Full Text Supply Service
+ PDF Full Text
Request PDF Full TextRequest PDF Full Text
Submit PDF Full TextSubmit PDF Full Text
+ Follow Us
Follow on FacebookFollow on Facebook
Follow on TwitterFollow on Twitter
Follow on Google+Follow on Google+
Follow on LinkedInFollow on LinkedIn
Follow on LinkedInFollow on Tumblr

+ Translate

Ethylene-Induced Polyamine Accumulation in Rice (Oryza sativa L.) Coleoptiles


, : Ethylene-Induced Polyamine Accumulation in Rice (Oryza sativa L.) Coleoptiles. Plant Physiology 100(1): 238-245

Effects of ethylene on free polyamine biosynthesis in rice (Oryza sativa L. cv Taichung Native 1) coleoptiles were investigated in sealed and aerobic conditions. In sealed conditions, putrescine increased significantly and coincided with ethylene accumulation. Application of ethylene in sealed containers promoted putrescine accumulation over that in sealed controls. This ethylene-enhanced putrescine accumulation was inhibited by the ethylene action inhibitor 2,5-norbornadiene at 4000 muL/L. In aerobic conditions, ethylene and 1-aminocyclopropane-1-carboxylic acid also induced putrescine accumulation. Activity of arginine decarboxylase (EC 4.1.1.19) and S-adenosylmethionine decarboxylase (EC 4.1.1.50) increased on exposure to ethylene in aerobic conditions. Ornithine decarboxylase (EC 4.1.1.17) activity, however, remained unchanged. The ethylene-induced putrescine accumulation was inhibited by 5 x 10(-4)m alpha-difluromethylarginine, but not by 5 x 10(-4)m alpha-difluromethylornithine. Apparently, arginine decarboxylase, not ornithine decarboxylase, mediates the ethylene-induced putrescine accumulation. The increased S-adenosylmethioinine decarboxylase activity, however, did not result in a significant spermidine/spermine accumulation. In ethylene-treated coleoptiles, the accumulation of putrescine paralleled the increase of coleoptile length in both sealed and aerobic conditions. alpha-difluromethylarginine inhibited ethylene induced putrescine accumulation and coleoptile elongation. It seems that putrescine biosynthesis might be involved in the ethylene-induced elongation of rice coleoptiles.

(PDF same-day service: $19.90)

Order PDF Full Text

Close
Close

Click here to order any other PDF Full Text


Accession: 002373802

PMID: 16652953

DOI: 10.1104/pp.100.1.238

PDF Full Text: Submit


Submit PDF Full Text

No spam - Every submission is manually reviewed

Due to poor quality, we do not accept files from Researchgate

Submitted PDF Full Texts will always be free for everyone
(We only charge for PDFs that we need to acquire)

Select a PDF file:
Close
Close

Other references

Rigney, Mp; Brusewitz, Gh; Stone, Ml, 1996: Peach physical characteristics for orientation. Packing line sorting equipment utilizing an electronic quality sensor usually requires oriented fruit for reliable measurements. The performance of mechanisms using the rolling behavior of peaches to achieve orientation is dependent on the fruit&a...

Playford Geoffrey; Dino Rodolfo, 1997: Palynological observations on the Monte Alegre Formation, Amazonas Basin, Brazil. Revista Universidade Guarulhos Geociencias 2, Numero Especial: 204

Mankad V.N.; Longnecker G., 1983: Thromboxane and prostacyclin metabolites in sickle cell disease. Thrombosis & Haemostasis 50(1): 274

Kowalski, J.; Krzywinska, F., 1961: Improving the essential oil of Silver Fir.. An account of experiments in distillation, purification, concentration, deterpenation, and acetylation of the oil.

Zadan, I., 1940: The Russian Thoroughbred saddle horse on collective farms. THIS is an account of the work carried out by the above station, since 1934, in reconstructing and organizing the breeding in the Poltava and Kharkov territories so as to create remount reserves for the Red Army.

McMurtry, C.T.; Young, S.E.; Downs, R.W.; Adler, R.A., 1992: Mild vitamin D deficiency and secondary hyperparathyroidism in nursing home patients receiving adequate dietary vitamin D. Objective: To compare the vitamin D metabolite and nutritional status of institutionalized elderly males with a non-institutionalized control group. Design: Case-control study. Setting: Veterans Administration Medical Center Nursing Home (NH) in R...

Ma Jianqin; Li Chaoyang; Zhang Fuxin, 1999: Study on gold-bearing and arsenic-rich pyrite growth bands from the Jianchaling gold deposit in the Qinling Mountains. Various gold-bearing and arsenic-rich pyrite growth bands were found. Their textures and structures, together with their occurrence and composition, indicate that, during the main phase of ore deposition, gold had an intimate geochemical relations...

Barber, J.R.; Conner, W.E., 2006: Tiger moth responses to a simulated bat attack: timing and duty cycle. Many night-flying insects perform complex, aerobatic escape maneuvers when echolocating bats initiate attack. Tiger moths couple this kinematic defense with an acoustic reply to a bat's biosonar-guided assault. The jamming hypothesis for the...

Maruyama, Kazuo; Unezaki, Sakae; Takahashi, Noriyuki; Iwatsuru, Motoharu, 1993: Enhanced delivery of doxorubicin to tumor by long-circulating thermosensitive liposomes and local hyperthermia. Doxorubicin (DXR) was encapsulated in long-circulating, thermosensitive liposomes (180-200 nm), prepared from dipalmitoylphosphatidylcholine (DPPC)/distearoylphosphatidylcholine (DSPC) (9:1 (m/m)) and 6 mol% of ganglioside G-M1 (G-M1), with 95-98%...

Anonymous, 1990: Annual Research Report 1989-90. Detailed project reports are presented on: (a) land capability and tillage systems for south-western New South Wales; (b) the effect of ground cover on surface runoff and erosion ; and (c) soil management and erosion susceptibility. Short reports...