+ Site Statistics
+ Resolve Accession
+ Subscribe to Site Feeds
EurekaMag Most Shared ContentMost Shared
EurekaMag PDF Full Text ContentPDF Full Text
+ 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

+ Translate

Relationship between coleoptile elongation and alcoholic fermentation in rice exposed to anoxia. I. Importance of treatment conditions and different tissues

, : Relationship between coleoptile elongation and alcoholic fermentation in rice exposed to anoxia. I. Importance of treatment conditions and different tissues. Annals of Botany 74(3): 265-271

The relationship between coleoptile elongation and alcoholic fermentation of rice under anoxia is examined using seeds either: (a) N2 flushed during submergence, (b) incubated in stagnant deoxygenated agar at 0.1% w/v to simulate the stagnant conditions of waterlogged soil, or (c) incubated in waterlogged soil. Coleoptile elongation growth was greater for N2 flushing > stagnant agar > soil: seed survival was also greatest in this order over 1-5 d. Ethanol concentrations in coleoptiles and intact seeds (cv. IR42) were approximately 300 and 100 mol m-3 respectively when seeds were grown 3 d in stagnant agar, however 92% of the ethanol in seeds diffused into the external medium when solutions were mixed for 5-10 s. Coleoptile growth under anoxia was related to rates of ethanol synthesis (RE) in different treatments: there was greater coleoptile growth and RE for seeds in N2 flushed solutions than in stagnant deoxygenated agar. Coleoptile growth of individual seeds was also related to the RE of each seed at 2-3 d after anoxia (r2 = 0.46). Analysis of different tissues was important in evaluating growth and metabolism of coleoptiles. Although the coleoptile only accounted for 0.7% of seed dry weight at 3 d after anoxia, it contained 21% of the ethanol produced by rice seeds. There were also three-fold higher rates of RE on a fresh weight basis in expanding tissues in the base of the coleoptile relative to the elongated tissues at the apex. Results are discussed in terms of the importance of environmental conditions used to impose anoxia, quantification of RE in specific tissues and the possibility that under stagnant conditions high ethanol concentrations in tissues may limit RE and coleoptile growth.

Order PDF Full Text


Click here to order any other PDF Full Text

Accession: 002477728

DOI: 10.1006/anbo.1994.1117

Download PDF Full Text: Relationship between coleoptile elongation and alcoholic fermentation in rice exposed to anoxia. I. Importance of treatment conditions and different tissues

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:

Other references

Kopper, P.H., 1947: An Atypical Strain of Pseudomonas aeruginosa. A strain of P. aeruginosa, first isolated from urine, could be cultivated in a phosphate-buffered soln. containing creatinine as the sole source of C and N. The strain possesses a specific creatinine-decompos-ing enzyme, tentatively named creatina...

Ali, S.S.; Elliott, W.H., 1976: Bile acids. LI. Formation of 12alpha-hydroxyl derivatives and companions from 5 alpha-sterols by rabbit liver microsomes. A comparison of the activity of rabbit liver microsomes fortified with 0.1 mM NADPH to promote 12alpha-hydroxylation over 60 minutes with appropriate sterols provided the following relative order of activities: kalpha-cholestane-3alpha, 7alpha-dio...

Dulger, H.E.; Tokdemir, M., 2001: An accidental death caused by an unexploded 40-mm grenade. Unexploded grenades are potentially dangerous materials. Numerous grenades have been found to be unexploded after wars have ended. We present an interesting case of an unexploded grenade that was found accidentally in a soldier's skull. On ph...

France, R.L., 1936: Indol Tolerance of Certain Strains of Colon-Aerogenes Group. Journal of Bacteriology 32(2): 211-214

Ritchie, Bw, 2002: Diagnosis and management of respiratory diseases. Proceedings of the North American Veterinary Conference6(16): 880-882

LeDoux, M., 2011: Analytical methods applied to the determination of pesticide residues in foods of animal origin. A review of the past two decades. Pesticides are widely used in agriculture and can be transferred to animals in a number of ways. Consequently, reliable analytical methods are required to determine pesticide residues in foods of animal origin. The present review covers published...

Koëkina, O.I.; Gaĭdamakina, A.M.; Volkova, R.P., 1988: The possibilities for correcting interhemispheric EEG asymmetry during reflexotherapy of depressive states with pain syndromes. The work deals with the signs of interhemispheric EEG asymmetry in depressions with pain syndromes. Reflex therapeutic techniques proved capable of achieving a functional correction of EEG asymmetry indices in the somatosensory cortex. The authors...

Blanco Loizelier, A., 1971: Chlamydial infections in the rabbit.. Seven outbreaks in colonies of up to 100 breeding does, and field cases of paralysis in wild hares were investigated. Symptoms ranged from abortion or early death of litters of otherwise normal does to loss of appetite, rhinitis, cough, sneezing,...

Konrad, S., 2005: Nursing in addictions services. Alberta Rn 60(11): 8-9

Borer-Weir, K.E.; Bailey, S.R.; Harris, P.A.; Menzies-Gow, N.J.; Elliott, J., 2013: Seasonal variation in maintenance of phenylephrine-induced tone in isolated equine digital arteries under hypoxic or hyperoxic conditions in vitro. Digital vasoconstriction, ischaemia and hypoxia may predispose to acute laminitis. Laminitis incidence varies seasonally, peaking in spring and summer. Direct seasonal influences on equine digital artery (EDA) contractility have not been investiga...