Using of chlorophyll a fluorescence OJIP transients for sensing salt stress in the leaves and fruits of tomato

2017 ◽  
Vol 219 ◽  
pp. 216-221 ◽  
Author(s):  
Kazufumi Zushi ◽  
Naotaka Matsuzoe
2011 ◽  
Vol 23 (4) ◽  
pp. 245-253 ◽  
Author(s):  
Marcos Antonio Bacarin ◽  
Sidnei Deuner ◽  
Fabio Sergio Paulino da Silva ◽  
Daniela Cassol ◽  
Diolina Moura Silva

2020 ◽  
Vol 2 (7) ◽  
Author(s):  
Kazem Ghassemi-Golezani ◽  
Ayda Hosseinzadeh-Mahootchi ◽  
Salar Farhangi-Abriz

2020 ◽  
Vol 15 (1) ◽  
pp. 398-405
Author(s):  
Aicha Loudari ◽  
Chahinez Benadis ◽  
Rachida Naciri ◽  
Aziz Soulaimani ◽  
Youssef Zeroual ◽  
...  

2017 ◽  
Vol 183 ◽  
pp. 322-333 ◽  
Author(s):  
P. Dąbrowski ◽  
M.H. Kalaji ◽  
A.H. Baczewska ◽  
B. Pawluśkiewicz ◽  
G. Mastalerczuk ◽  
...  

Plants ◽  
2021 ◽  
Vol 10 (7) ◽  
pp. 1435
Author(s):  
Yun-Im Kang ◽  
Youn Jung Choi ◽  
Young Ran Lee ◽  
Kyung Hye Seo ◽  
Jung-Nam Suh ◽  
...  

Salt stress is a major constraint of crop productivity because it reduces yield and limits the expansion of agriculture. This study investigated salt tolerance in 26 cultivars of cut lilies (Lilium hybrids) by examining the effect of salt stress on the growth and morphological characteristics of flowers and leaves and their physiological properties (chlorophyll a fluorescence). Salt stress significantly affected the growth and development of cut lilies. Canonical discriminant analysis indicates that the middle leaf width, number of flowers, first flower diameter, petal width, and chlorophyll a fluorescence were correlated with salt stress, whereas plant height, the middle leaf length, days to flowering, and sepal width were less affected by the stress. The cultivars examined were divided into three groups: Group 1 included the salt-sensitive cultivars, which failed to develop normal flowers; Group 2 included cultivars sensitive to salt stress but tolerant to osmotic stress; and Group 3 was the salt-tolerant group, which developed commercially valuable flowers. In conclusion, the cultivars contained a variable range of cut flower characteristics and growth traits that can be employed for lily breeding programs and as material for molecular mechanisms and signaling networks under salt stress.


1993 ◽  
Vol 71 (1) ◽  
pp. 87-92 ◽  
Author(s):  
Sankaran KrishnaRaj ◽  
Bruce T. Mawson ◽  
Edward C. Yeung ◽  
Trevor A. Thorpe

The potential of utilizing induction and quenching kinetics of chlorophyll a fluorescence as consistent and reliable markers for in vivo salt (sodium sulphate) tolerance screening studies was investigated by comparing two wheat (Triticum aestivum L.) varieties with varying responses to salinity, viz. Kharchia-65 (salt-tolerant) and Fielder (salt-susceptible). Three-week-old seedlings were treated with a range of salt concentrations (0 to 2%) over a 1- to 2-week period. Both the maximum rates of fluorescence induction and quenching measured from leaf sections decreased significantly in Fielder compared with Kharchia-65 as the salt concentration increased. Alterations in other fluorescence parameters, such as the maximum yield of fluorescence signal in the absence and presence of 3(3,4-dichlorophenyl)-1,1-dimethylurea by the variety Fielder indicated a minimal reduction in the size of the primary electron acceptor pool associated with photosystem II following salt stress. In contrast, these parameters were altered to a lesser extent by salt treatments in Kharchia-65. The effect of salinity stress on leaf morphology of both varieties indicated no major anatomical alterations apart from a negligible increase in leaf thickness. Total chlorophyll content of Kharchia-65 increased significantly as a result of salt stress, owing to an increase in both chlorophyll a and chlorophyll b, whereas Fielder showed no significant variations. The results indicate that total fluorescence quenching and maximum rates of both induction and quenching appear to be reliable indicators for in vivo screening of salt-tolerant wheat genotypes. Key words: Triticum aestivum L., wheat, chlorophyll a fluorescence, salt stress, in vivo screening.


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