scholarly journals A performance‐based multi‐model combination approach to reduce uncertainty in seasonal temperature change projections

2020 ◽  
Author(s):  
Rajarshi Das Bhowmik ◽  
Arumugam Sankarasubramanian
Keyword(s):  
Temperature Change ◽  
Seasonal Temperature ◽  
Model Combination ◽  
Combination Approach ◽  
Seasonal Temperature Change ◽  
A Performance

scholarly journals Numerical simulation on shaft lining stresses analysis of operating mine with seasonal temperature change

2009 ◽  
Vol 1 (1) ◽  
pp. 550-555 ◽  
Author(s):  
Zhou Jie ◽  
Zhou Guo-qing ◽  
Shang Xiang-yu ◽  
Li Ting
Keyword(s):  
Numerical Simulation ◽  
Temperature Change ◽  
Seasonal Temperature ◽  
Shaft Lining ◽  
Seasonal Temperature Change

Studies of the Effect of Seasonal Temperature Change on a Circle Beam Supporting Excavation

2018 ◽  
Author(s):  
Chang Liu ◽  
Yan-Po Liu ◽  
Gang Zheng ◽  
Ya-Long Zhang
Keyword(s):  
Temperature Change ◽  
Seasonal Temperature ◽  
Seasonal Temperature Change

Seasonal temperature variations influence tapetum mitosis patterns associated with reproductive fitness

Genome ◽  
2014 ◽  
Vol 57 (9) ◽  
pp. 517-521 ◽  
Author(s):  
Umesh C. Lavania ◽  
Surochita Basu ◽  
Jyotsana Singh Kushwaha ◽  
Seshu Lavania
Keyword(s):  
Climate Change ◽  
Temperature Change ◽  
Reproductive Fitness ◽  
Seasonal Temperature ◽  
Seed Fertility ◽  
Mild Winter ◽  
Differential Behavior ◽  
Sporogenous Tissue ◽  
Differential Behaviour ◽  
Environmentally Sensitive

Environmental stress in plants impacts many biological processes, including male gametogenesis, and affects several cytological mechanisms that are strongly interrelated. To understand the likely impact of rising temperature on reproductive fitness in the climate change regime, a study of tapetal mitosis and its accompanying meiosis over seasons was made to elucidate the influence of temperature change on the cytological events occurring during microsporogenesis. For this we used two species of an environmentally sensitive plant system, i.e., genus Cymbopogon Sprengel (Poaceae), namely Cymbopogon nardus (L.) Rendle var. confertiflorus (Steud.) Bor (2n = 20) and Cymbopogon jwaruncusha (Jones) Schult. (2n = 20). Both species flower profusely during extreme summer (48 °C) and mild winter (15 °C) but support low and high seed fertility, respectively, in the two seasons. We have shown that tapetal mitotic patterns over seasons entail differential behavior for tapetal mitosis. During the process of tapetum development there are episodes of endomitosis that form either (i) an endopolyploid genomically imbalanced uninucleate and multinucleate tapetum, and (or) (ii) an acytokinetic multinucleate genomically balanced tapetum, with the progression of meiosis in the accompanying sporogenous tissue. The relative frequency of occurrence of the two types of tapetum mitosis patterns is significantly different in the two seasons, and it is found to be correlated with the temperature conditions. Whereas, the former (genomically imbalanced tapetum) are prevalent during the hot summer, the latter (genomically balanced tapetum) are frequent under optimal conditions. Such a differential behaviour in tapetal mitosis vis-à-vis temperature change is also correspondingly accompanied by substantial disturbances or regularity in meiotic anaphase disjunction. Both species show similar patterns. The study underpins that tapetal mitotic behaviour per se could be a reasonable indicator to elucidate the effect of climate change on reproductive fitness.

Sign in / Sign up

Export Citation Format

Share Document