Wyniki wyszukiwania

1

Winter food availability limits winter survival of Mongolian gerbils (Meriones unguiculatus)

100%

Liu W., Wang G., Wan X., Zhong W.

Acta Theriologica

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2011

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tom 56

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nr 3

Food availability is important to the dynamics of animal social organizations or populations. However, the role of winter food availability in animal population dynamics is still controversial. We carried out an experimental study to test Lack’s hypothesis that reduced food in winter limits survival and spring numbers of breeding individuals of social groups, using the Mongolian gerbil (Meriones unguiculatus) as model species. We established 24 gerbil social groups in 24, 10 × 10 m, pens in September 2008. We provided wheat seeds as supplemental food in 12 enclosures from September 2008 to March 2009; the other 12 enclosures, not provided with supplemental food, served as controls. We live-trapped gerbils at a 2-week interval from September to April. Supplemental food during winter increased biweekly survival by 10% relative to that in control groups. Only four control social groups survived to the end of our study whereas all 12 food-supplemented social groups survived through our study period. Supplemental food also increased cumulative numbers of recruits and group sizes of gerbils. We conclude that winter food availability limits winter survival and spring social groups or population sizes of Mongolian gerbils.

2

A new four-parameter, generalized logistic equation and its applications to mammalian somatic growth

100%

Wan X., Wang M., Wang G., Zhong W.

Acta Theriologica

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2000

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tom 45

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nr 2

A new mathematical equation is introduced in this paper: w = f - 1/(b/f +(1/(f-s)-b-f)exp(kt)) where W is the size at any convenient unit of time /, s is the initial size, f is the upper asympotic size, k is the growth coefficient (k > 0), and b is the constant. The new equation encompasses the logistic equation and therefore should be considered as a generalized version of the classical logistic equation. With its additional fourth parameter 6, the new equation yields an unfixed value of inflexion point which enables it to possess good flexibility for depicting diverse growth patterns. In order to evaluate the fitness of the new growth equation, some commonly encountered models are compared to the new one using 12 sets of somatic growth data of mammalian species including hamster, rat, vole, pika, mouse, rabbit, cattle, and bear, The new equation possesses excellent fitness to each data set, suggesting that it is worth being considered by growth data analysts.

3

Physiological and cellular responses to fluoride stress in tea (Camellia sinensis) leaves

76%

Cai H., Dong Y., Li Y., Li D., Peng C., Zhang Z., Wan X.

Acta Physiologiae Plantarum

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2016

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tom 38

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nr 06

4

How red mud-induced enhancement of iron plaque formation reduces cadmium accumulation in rice with different radial oxygen loss

76%

Liu Z., Yang J., Wan X., Peng Y., Liu J., Wang X., Zeng M.

Polish Journal of Environmental Studies

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2016

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tom 25

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nr 4

In situ stabilization of cadmium (Cd) in soil by the addition of Fe-rich amendments (e.g., red mud or RM) has been suggested as an effective and low-cost method. A combined soil-sand pot experiment was conducted to investigate the influence of the addition of RM on iron plaque formation and Cd accumulation in rice plants. Two experiments were conducted: 1. A hydroponic trial with 20 cultivars for screening the rice cultivars with different radial oxygen loss (ROL). 2. A rhizobag trial using the three selected rice cultivars (Zheyou12, Qianyou 1, Chunjiangnuo 2) with different ROL at 2 and 5 mg Cd kg-1 exposures amended by three rates of RM application (0, 0.5%, 1%). The results indicated that the three rice cultivars with different ROLs on average showed better growth performance, less Cd uptake, and more iron (Fe) plaque on root surface and in the rhizosphere under RM treatments. In addition, the rice cultivar with higher ROL tended to have higher Fe plaque and Cd adsorption on the roots and in their rhizosphere with increasing RM additions. These results suggested that rice plants (especially high ROL-ability cultivars) amended by Fe-rich amendments tend to possess a high ability to increase Fe plaque on root surface and in the rhizosphere, as well as decrease Cd uptake and translocate from root to grain.

5

Erratum to: from green to red: large-scale transcriptome comparison of a bud sport in poplar (Populus deltoides)

76%

Zhang F., Zhao J., Wan X., Luo X., Li W., Sun L., Chen Q.

Acta Physiologiae Plantarum

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2017

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tom 39

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nr 04

6

From green to red: large-scale transcriptome comparison of a bud sport in poplar (Populus deltoides)

76%

Zhang F., Zhao J., Wan X., Luo X., Li W., Sun L., Chen Q.

Acta Physiologiae Plantarum

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2016

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tom 38

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nr 10

7

RhNAC31, a novel rose NAC transcription factor, enhances tolerance to multiple abiotic stresses in Arabidopsis

64%

Ding A., Li S., Li W., Hao Q., Wan X., Wang K., Liu Q., Liu Q., Jiang X.

Acta Physiologiae Plantarum

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2019

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tom 41

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nr 06

Plant-specific NAM, ATAF1/2, and CUC (NAC) transcription factors serve essential functions in plant development and plant responses to environmental cues. Yet, transcription factors specific to the rose (Rosa hybrida) NAM/CUC3 subfamily are poorly understood. Here, we identify a novel NAM/CUC3-subfamily transcription factor, RhNAC31, that is associated with flower opening and can be induced by increased salt, cold, and dehydration stress treatment. RhNAC31 has a transactivation region in its C-terminal region, and its overexpression is associated with enhanced cold tolerance in Arabidopsis, conferring a higher survival rate and reduced reactive oxygen (H₂O₂ and O₂⁻) levels. Under salt stress conditions, plants overexpressing RhNAC31 displayed increased germination rates and lower levels of H₂O₂, malondiadehyde (MDA), peroxidase (POD), and superoxide dismutase (SOD). Moreover, RhNAC31 conferred enhanced drought resistance by reducing the rate of water loss through leaves. Further characterization revealed a higher sensitivity of RhNAC31 transgenic plants to abscisic acid (ABA) both during and post-germination, causing lower germination and root inhibition rates under ABA treatment. Quantitative PCR experiments showed that numerous abiotic stress-related genes were activated by RhNAC31 overexpression. Our results highlight RhNAC31 as a positive transcriptional regulator of tolerance to multiple abiotic pressures, and we conclude that RhNAC31 has potential for use in the molecular breeding of stress-tolerant crops.

Ograniczanie wyników

Winter food availability limits winter survival of Mongolian gerbils (Meriones unguiculatus)

A new four-parameter, generalized logistic equation and its applications to mammalian somatic growth

Physiological and cellular responses to fluoride stress in tea (Camellia sinensis) leaves

How red mud-induced enhancement of iron plaque formation reduces cadmium accumulation in rice with different radial oxygen loss

Erratum to: from green to red: large-scale transcriptome comparison of a bud sport in poplar (Populus deltoides)

From green to red: large-scale transcriptome comparison of a bud sport in poplar (Populus deltoides)

RhNAC31, a novel rose NAC transcription factor, enhances tolerance to multiple abiotic stresses in Arabidopsis