CHANGES IN FREEZING TOLERANCE AND SOLUBLE SUGAR COMPOSITION IN PLANTS AND CALLI OF LONICERA CAERULEA L. DURING COLD ACCLIMATION

2000 ◽  
pp. 179-184
Author(s):  
H. Imanishi ◽  
T. Suzuki ◽  
K. Masuda ◽  
T. Harada
Keyword(s):  
Cold Acclimation ◽  
Freezing Tolerance ◽  
Soluble Sugar ◽  
Sugar Composition ◽  
Lonicera Caerulea

scholarly journals Effect of Exogenous Salicylic Acid on the Physiological and Biochemical Processes of Ligustrum lucidum during Natural Cold Acclimation

HortScience ◽  
2018 ◽  
Vol 53 (6) ◽  
pp. 859-864
Author(s):  
Yang Yang ◽  
Runfang Zhang ◽  
Pingsheng Leng ◽  
Zenghui Hu ◽  
Man Shen
Keyword(s):  
Salicylic Acid ◽  
Cold Acclimation ◽  
Freezing Tolerance ◽  
Soluble Sugar ◽  
Northern China ◽  
Freezing Injury ◽  
Ligustrum Lucidum ◽  
Glossy Privet ◽  
Exogenous Salicylic Acid ◽  
Physiological And Biochemical

The evergreen Ligustrum lucidum (glossy privet) suffers from freezing injury in northern China, where there are short growing seasons and early fall frost events. To investigate the influence of exogenous salicylic acid (SA) application on the natural cold acclimation of glossy privet, physiological and biochemical changes in glossy privet seedlings subjected to SA treatments at four concentrations (0, 150, 250, and 350 mg·L−1) were evaluated from Sept. to Dec. 2016. The optimum application concentrations were between 250 and 350 mg·L−1, which led to better freezing tolerance during natural cold acclimation. The improved freezing tolerance under exogenous SA application was associated with the accumulation of chlorophyll, proline, soluble protein, and soluble sugar, and the regulations of gibberellic acid (GA) and abscisic acid (ABA). Salicylic acid treatments started a cascade of steps for advancing the cold acclimation process of glossy privet. We suggest that exogenous SA application may be used on glossy privet grown in northern China.

CHANGES IN FREEZING TOLERANCE AND PROTEIN CONSTITUENTS OF LONICERA CAERULEA DURING COLD ACCLIMATION

2003 ◽  
pp. 445-450
Author(s):  
H. Imanishi ◽  
K. Takada ◽  
K. Masuda ◽  
T. Suzuki ◽  
T. Harada
Keyword(s):  
Cold Acclimation ◽  
Freezing Tolerance ◽  
Lonicera Caerulea

scholarly journals The Use of Callus Cultures for Searching Proteins Associated with Increased Freezing Tolerance During Cold Acclimation in Lonicera caerulea.

2000 ◽  
Vol 17 (1) ◽  
pp. 21-25
Author(s):  
Hiroyuki IMANISHI ◽  
Kumiko TAKADA ◽  
Kiyoshi MASUDA ◽  
Takashi SUZUKI ◽  
Takashi HARADA
Keyword(s):  
Cold Acclimation ◽  
Freezing Tolerance ◽  
Callus Cultures ◽  
Lonicera Caerulea

Variation in leaf and bud soluble sugar concentration among Vitis genotypes grown under two temperature regimes

2009 ◽  
Vol 89 (5) ◽  
pp. 961-968 ◽  
Author(s):  
T N Grant ◽  
I E Dami ◽  
T Ji ◽  
D Scurlock ◽  
J Streeter
Keyword(s):  
Cold Acclimation ◽  
Freezing Tolerance ◽  
Shoot Growth ◽  
Soluble Sugar ◽  
Sugar Accumulation ◽  
Cabernet Franc ◽  
Temperature Regimes ◽  
Cold Sensitive ◽  
Cold Hardy ◽  
Two Temperature

Soluble sugar accumulation was determined in the grape (Vitis spp.) cultivars Frontenac, Couderc 3309, Concord, Cabernet Franc, Traminette and Seyval grown under two temperature regimes. Shoot growth slowed under cold temperature regimes in all cultivars except Concord, which was the least responsive. Among all sugars, raffinose showed distinctive responses associated with the two temperature regimes. Under a non-acclimating temperature regime, raffinose concentrations were low and similar among cultivars, whereas under cold acclimating temperature regimes raffinose accumulation was generally higher, and cold-hardy cultivars accumulated higher concentrations than did cold-sensitive cultivars. Basal leaves and buds accumulated the most raffinose. Cabernet Franc vines exhibited no differences in sugar accumulation at different stages of development. The results suggest that raffinose accumulation might be an early step in the process of cold acclimation that coincides with slowed shoot growth, and may precede the onset of dormancy and freezing tolerance. Leaf raffinose concentration might be useful as a detection tool to distinguish various Vitis genotypes with contrasting freezing tolerance. Key words: Bud, cold acclimation, leaf, raffinose, Vitis

Sugar Composition and Freezing Tolerance in Barley Crowns at Varying Carbohydrate Levels

Crop Science ◽  
1989 ◽  
Vol 29 (5) ◽  
pp. 1266-1270 ◽  
Author(s):  
D. P. Livingston ◽  
C. R. Olien ◽  
R. D. Freed
Keyword(s):  
Freezing Tolerance ◽  
Sugar Composition ◽  
Carbohydrate Levels

Growth, freezing tolerance, and yield performance of alfalfa (Medicago sativaL.) cultivars grown under controlled and field conditions in northern latitudes

2018 ◽  
Vol 98 (5) ◽  
pp. 1109-1118 ◽  
Author(s):  
Mervi M. Seppänen ◽  
Ville Alitalo ◽  
Hanna K. Bäckström ◽  
Kirsi Mäkiniemi ◽  
Venla Jokela ◽  
...  
Keyword(s):  
Field Experiment ◽  
Cold Acclimation ◽  
Freezing Tolerance ◽  
Field Experiments ◽  
Starch Content ◽  
Day Length ◽  
Forage Legume ◽  
Northern Latitudes ◽  
Medicago Sativa L ◽  
Second Year

Alfalfa (Medicago sativa L.) is one of the most popular forage legume crops worldwide. Its cultivation in the boreal and sub-boreal zone is restricted by inadequate winter hardiness, but global warming may increase its adaptability in these latitudes. Here, we examined variation in growth and freezing tolerance of four alfalfa cultivars recommended for the northern temperate climates of Europe (Alexis, Lavo, Live, and Nexus) and two cultivars with adaptation to milder or Mediterranean climates (Rangelander and Hunter River). Two experiments under controlled conditions (growth cessation and cold acclimation experiments) along with a 2-yr field experiment were conducted. Lavo was the most freezing-tolerant cultivar in both the cold acclimation and field experiments. Both Rangelander and Hunter River showed poor freezing tolerance. Lavo responded to decreasing temperatures, unlike the response to shorter day length, by allocating biomass to the roots. In general, better freezing tolerance was associated with high total nonstructural carbohydrate and low starch content. The field experiment results revealed that the more freezing-tolerant cultivars may have some advantages regarding yield, especially in the second year, but the differences between the cultivars were modest.

The influence of Fusarium oxysporum f. sp. medicaginis on total soluble-sugar concentration of infected alfalfa roots

1993 ◽  
Vol 73 (2) ◽  
pp. 647-649 ◽  
Author(s):  
C. Richard ◽  
J.-G. Martin
Keyword(s):  
Fusarium Oxysporum ◽  
Key Words ◽  
Freezing Tolerance ◽  
Soluble Sugar ◽  
Soluble Sugars ◽  
Frost Tolerance ◽  
Root Tissue ◽  
Sugar Concentration ◽  
Low Concentration ◽  
Total Soluble Sugar

Alfalfa was inoculated with Fusarium oxysporum f. sp. medicaginis, and the total soluble-sugar concentration was determined in diseased taproots of cold-hardened plants. The concentration of soluble sugars decreased with increasing discoloration of root tissue (r = −0.85, P ≤ 0.0001). The low concentration of soluble sugars might be responsible for the previously reported low freezing tolerance of Fusarium-infected alfalfa. Key words: Alfalfa, Fusarium, sugars, frost tolerance

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