scholarly journals Respiration and Ripening of Banana Fruit Slices

1969 ◽  
Vol 22 (1) ◽  
pp. 87 ◽  
Author(s):  
JK Palmer ◽  
WB Mcglasson
Keyword(s):  
Fruit Ripening ◽  
Respiratory Quotient ◽  
Tissue Level ◽  
Model System ◽  
Broad Peak ◽  
Suitable Model ◽  
Banana Fruit ◽  
Colour Changes ◽  
Green Banana ◽  
Sugar Conversion

Transverse slices of green banana fruit (2-6 mm thick) exhibit after cutting an initial burst of respiration which largely subsides within 2 hr, and a broad peak of "induced" respiration at 15-20 hr. Respiration subsequently declines and within 4 days stabilizes at a rate two to three and a half times that of matched, intact fruits. Ripening of the slices occurs naturally within 4 weeks after cutting; it may also be induced at any time by treating with ethylene. In all attributes studied (sensitivity to ethylene, respiratory climacteric, respiratory quotient, peel colour changes, starch to sugar conversion, softening, and aroma development), the slices are comparable to whole fruit. Inhibitors or metabolites may be introduced into the slices by vacuum infiltration. The slices provide a suitable model system for studying the biochemistry of fruit ripening at the tissue level.

Ce(IV)-mediated formation of benzenediazonium ion from a non-aminoazo dye, 1-phenylazo-2-hydroxy-naphthalene (Sudan I) and its binding to DNA

1989 ◽  
Vol 54 (7) ◽  
pp. 2021-2026
Author(s):  
Marie Stiborová ◽  
Befekadu Asfaw ◽  
Pavel Anzenbacher
Keyword(s):  
Azo Dyes ◽  
Acidic Medium ◽  
Model System ◽  
Calf Thymus Dna ◽  
Suitable Model ◽  
Principal Product ◽  
Calf Thymus ◽  
Sudan I ◽  
A Minor

Ce(IV) ions in acidic medium convert a carcinogenic non-aminoazo dye, 1-phenylazo-2-hydroxy-naphthalene (Sudan I) into an ultimate carcinogen, which binds to calf thymus DNA. The principal product of Sudan I oxidation by the Ce(IV) system is the benzenediazonium ion. A minor product is the dihydroxyderivative of Sudan I, 1-(4-hydroxyphenylazo)-2,6-dihydroxynaphthalene. Other minor coloured products (yellow and brown) were not identified. The principal product (the benzenediazonium ion) is responsible for the carcinogenicity of Sudan I, as it covalently binds to DNA. Ce(IV) ions in acidic medium represent a suitable model system, which imitates the activation route of carcinogenic azo dyes.

Expression profiles of a MhCTR1 gene in relation to banana fruit ripening

2012 ◽  
Vol 56 ◽  
pp. 47-55 ◽  
Author(s):  
Huei-Lin Hu ◽  
Yi-Yin Do ◽  
Pung-Ling Huang
Keyword(s):  
Fruit Ripening ◽  
Expression Profiles ◽  
Banana Fruit

Multiple forms of α-expansin genes are expressed during banana fruit ripening and development

2007 ◽  
Vol 45 (2) ◽  
pp. 184-192 ◽  
Author(s):  
Asha ◽  
Vidhu A. Sane ◽  
Aniruddha P. Sane ◽  
Pravendra Nath
Keyword(s):  
Fruit Ripening ◽  
Banana Fruit ◽  
Multiple Forms

Study on some of the physiological and biochemical indexes under the age of development of banana fruit (Musa paradisiaca L.) grown in Thanh Tri, Hanoi

2021 ◽  
Vol 66 (1) ◽  
pp. 87-95
Author(s):  
Trong Le Van ◽  
Khanh Nguyen Nhu
Keyword(s):  
Fruit Ripening ◽  
Starch Content ◽  
Sugar Content ◽  
Maximum Size ◽  
Research Process ◽  
Scientific Basis ◽  
Carotenoid Content ◽  
Banana Fruit ◽  
Fruit Formation ◽  
Physiological And Biochemical

Research to determine the ripening time of the fruit is the scientific basis for better harvesting and preservation. Physiological and biochemical methods were used to analyze the changes of some indicators according to the growth and development of banana fruit grown in Thanh Liet commune, Thanh Tri district, Hanoi from the time of its formation until the fruit ripening. The results showed that the banana reached the maximum size at 16 weeks old, at this time the peel was yellow due to the decrease in chlorophyll and increased carotenoid content. The content of vitamin C and total organic acid content reached their maximum when the fruit at 12 weeks old, then decreased gradually. Starch content increased to 14 weeks old, then decreased. Reduced sugar content increased gradually to 16 weeks old and then decreased. Protein content decreased gradually from fruit formation until fruit ripening, lipid content increased gradually to 15 weeks old, then decreased. Through the research process, we have determined that the physiological ripe time of banana fruit was 16 weeks old, this is the time when the fruit stops growing and accumulates many nutrients.

Geographic expansion of banana Blood disease in Southeast Asia

Plant Disease ◽  
2021 ◽  
Author(s):  
Jane Denise Ray ◽  
Siti Subandiyah ◽  
Vivian A Rincon-Florez ◽  
Ady B Prakoso ◽  
Wayan I Mudita ◽  
...  
Keyword(s):  
Southeast Asia ◽  
Rapid Expansion ◽  
Single Infection ◽  
Banana Fruit ◽  
Long Distance ◽  
Banana Production ◽  
Blood Disease ◽  
Infection Source ◽  
Banana Variety ◽  
Green Banana

Blood disease in bananas caused by Ralstonia syzygii subsp. celebesensis is a bacterial wilt causing significant crop losses in Indonesia and Malaysia. Disease symptoms include wilting of the plant and red brown vascular staining, internal rot, and discoloration of green banana fruit. There is no known varietal resistance to this disease in the Musa genus, although variation in susceptibility has been observed, with the popular Indonesian cooking banana variety Kepok being highly susceptible. This study established the current geographic distribution of Blood disease in Indonesia and confirmed the pathogenicity of isolates by Koch's Postulates. The long-distance distribution of the disease followed an arbitrary pattern indicative of human-assisted movement of infected banana materials. In contrast, local or short distance spread radiated from a single infection source, indicative of dispersal by insects and possibly contaminated tools, water or soil. The rapid expansion of its geographical range makes Blood disease an emerging threat to banana production in Southeast Asia and beyond.

scholarly journals Deciphering transcriptional regulators of banana fruit ripening by regulatory network analysis

2020 ◽  
Author(s):  
Jian‐Fei Kuang ◽  
Chao‐Jie Wu ◽  
Yu‐Fan Guo ◽  
Dirk Walther ◽  
Wei Shan ◽  
...  
Keyword(s):  
Network Analysis ◽  
Fruit Ripening ◽  
Regulatory Network ◽  
Transcriptional Regulators ◽  
Banana Fruit

scholarly journals Banana Ovate Family Protein MaOFP1 and MADS-Box Protein MuMADS1 Antagonistically Regulated Banana Fruit Ripening

PLoS ONE ◽  
2015 ◽  
Vol 10 (4) ◽  
pp. e0123870 ◽  
Author(s):  
Juhua Liu ◽  
Jing Zhang ◽  
Wei Hu ◽  
Hongxia Miao ◽  
Jianbin Zhang ◽  
...  
Keyword(s):  
Fruit Ripening ◽  
Banana Fruit ◽  
Mads Box ◽  
Family Protein

scholarly journals Forecasting for a Lagrangian aircraft campaign

2004 ◽  
Vol 4 (4) ◽  
pp. 1113-1124 ◽  
Author(s):  
A. Stohl ◽  
O. R. Cooper ◽  
R. Damoah ◽  
F. C. Fehsenfeld ◽  
C. Forster ◽  
...  
Keyword(s):  
Dispersion Model ◽  
Particle Dispersion ◽  
Model System ◽  
Suitable Model ◽  
The Novel ◽  
Model Output ◽  
Aircraft Measurement ◽  
Air Masses ◽  
Aerosol Distribution ◽  
Novel Model

Abstract. A forecast system has been developed in preparation for an upcoming aircraft measurement campaign, where the same air parcels polluted by emissions over North America shall be sampled repeatedly as they leave the continent, during transport over the Atlantic, and upon their arrival over Europe. This paper describes the model system in advance of the campaign, in order to make the flight planners familiar with the novel model output. The aim of a Lagrangian strategy is to infer changes in the chemical composition and aerosol distribution occurring en route by measured upwind/downwind differences. However, guiding aircraft repeatedly into the same polluted air parcels requires careful forecasting, for which no suitable model system exists to date. This paper describes a procedure using both Eulerian-type (i.e. concentration fields) and Lagrangian-type (i.e. trajectories) model output from the Lagrangian particle dispersion model FLEXPART to predict the best opportunities for a Lagrangian experiment. The best opportunities are defined as being highly polluted air parcels which receive little or no emission input after the first measurement, which experience relatively little mixing, and which are reachable by as many aircraft as possible. For validation the system was applied to the period of the NARE 97 campaign where approximately the same air masses were sampled on different flights. Measured upwind/downwind differences in carbon monoxide (CO) and ozone (O3) decreased significantly as the threshold values used for accepting cases as Lagrangian were tightened. This proves that the model system can successfully identify Lagrangian opportunities.

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