scholarly journals Physiological Studies on the Root of Crop Plants : II. Role of Cytochrome Oxidase in Respiration and Nutrient Absorption of Rice Roots

1960 ◽  
Vol 28 (4) ◽  
pp. 347-350 ◽  
Author(s):  
Katsumi INADA ◽  
Isamu BABA
2021 ◽  
Vol 22 (6) ◽  
pp. 2906
Author(s):  
Urszula Talar ◽  
Agnieszka Kiełbowicz-Matuk

B-box proteins represent diverse zinc finger transcription factors and regulators forming large families in various plants. A unique domain structure defines them—besides the highly conserved B-box domains, some B-box (BBX) proteins also possess CCT domain and VP motif. Based on the presence of these specific domains, they are mostly classified into five structural groups. The particular members widely differ in structure and fulfill distinct functions in regulating plant growth and development, including seedling photomorphogenesis, the anthocyanins biosynthesis, photoperiodic regulation of flowering, and hormonal pathways. Several BBX proteins are additionally involved in biotic and abiotic stress response. Overexpression of some BBX genes stimulates various stress-related genes and enhanced tolerance to different stresses. Moreover, there is evidence of interplay between B-box and the circadian clock mechanism. This review highlights the role of BBX proteins as a part of a broad regulatory network in crop plants, considering their participation in development, physiology, defense, and environmental constraints. A description is also provided of how various BBX regulators involved in stress tolerance were applied in genetic engineering to obtain stress tolerance in transgenic crops.


2013 ◽  
Vol 8 (5) ◽  
pp. e24139 ◽  
Author(s):  
Yuan Hu Xuan ◽  
Ryza A. Priatama ◽  
Vikranth Kumar ◽  
Chang-deok Han

2016 ◽  
Vol 78 (6-8) ◽  
Author(s):  
Nurul-Ain Ismail ◽  
Norazilla Omar ◽  
Mayamin Hamsidi ◽  
Nazri Che Dom ◽  
Rodziah Ismail ◽  
...  

Aedes albopictus is one of the most invasive mosquitoes in the world that harbors and can transmit many arboviruses, most notably dengue and chikungunya virus. In recent time, Ae. aegypti has gained more attention during dengue outbreaks compared to its counter parts, obscuring the role of Ae. albopictus as a vector. Moreover, existing data regarding Ae. albopictus is also currently limited in Malaysia. Hence, the present study was conducted to determine the genetic diversity of Ae. albopictus using molecular techniques from two dengue infested areas in Subang Jaya, Selangor, namely Taman Bukit Kinrara (TBK) and PJS7. Cytochrome oxidase 1 (CO1) gene from field collected mosquitoes were analyzed and compared to the USM laboratory strain (F135) together with sequences from the GenBank. Results from this study revealed that the field collected mosquitoes from TBK and PJS7 are genetically similar with each other. However, the samples exhibited polymorphism with the laboratory strain by 47 variable nucleotide sites. Our local samples are related with the   Ae. albopictus populations from India, probably due to its migration across these two regions via several human activities. This study shows that the CO1 gene is a valuable marker for the detection of Ae. albopictus and can be utilized to study its worldwide geographical distribution. Further analysis is strongly recommended using larger sample size and different localities to validate and substantiate our findings.


1965 ◽  
Vol 13 (8) ◽  
pp. 677-683 ◽  
Author(s):  
HERTHA R. CRESS ◽  
ALEXANDER SPOCK ◽  
DUNCAN C. HEATHERINGTON

Succinic dehydrogenase and cytochrome oxidase activities were found to be scattered throughout the cytoplasm of ciliated and nonciliated respiratory epithelial cells while ATPase activity was restricted to cilia and areas under the cilia in the regions of the ciliary basal bodies. In order to elucidate the role of ATPase further, tissue cultures of rabbit tracheal epithelium with beating cilia were incubated in a medium perfused with cigarette smoke which resulted in cessation of ciliary motility. Epithelium with beating cilia was positive for ATPase while the epithelium with nonbeating cilia was negative or only weakly positive in a few small scattered areas. The presence of ATPase in beating cilia and its absence in nonbeating cilia agree with biochemical and physiological studies suggesting an association between ATP and ciliary activity.


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