Lovely Mae F. Lawas

Lovely Mae F. Lawas
Auburn University | AU · Department of Biological Sciences

Dr. rer. nat.

About

33
Publications
6,399
Reads
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656
Citations
Additional affiliations
October 2019 - present
Auburn University
Position
  • PostDoc Position
May 2019 - September 2019
Max Planck Institute of Molecular Plant Physiology
Position
  • PostDoc Position
January 2015 - April 2019
Education
November 2015 - April 2019
Universität Potsdam
Field of study
  • Molecular Plant Physiology
June 2011 - January 2015
University of the Philippines Los Baños
Field of study
  • Molecular Biology and Biotechnology
June 2005 - April 2009

Publications

Publications (33)
Article
Full-text available
The genus Vaccinium L. (Ericaceae) contains a wide diversity of culturally and economically important berry crop species. Consumer demand and scientific research in blueberry (Vaccinium spp.) and cranberry (Vaccinium macrocarpon) have increased worldwide over the crops’ relatively short domestication history (~100 years). Other species, including b...
Article
Full-text available
In rice, a small increase in nighttime temperature reduces grain yield and quality. How warm nighttime temperatures (WNT) produce these detrimental effects is not well understood, especially in field conditions where the typical day-to-night temperature fluctuation exceeds the mild increase in nighttime temperature. We observed genome-wide disrupti...
Article
Asymmetric warming resulting in a faster increase in night compared to day temperatures affects crop yields negatively. Physiological characterization and agronomic findings have been complemented more recently by molecular biology approaches including transcriptomic, proteomic, metabolomic and lipidomic investigations in crops exposed to high nigh...
Article
Full-text available
Abstract: The wide natural variation present in rice is an important source of genes to facilitate stress tolerance breeding. However, identification of candidate genes from RNA-Seq studies is hampered by the lack of high-quality genome assemblies for the most stress tolerant cultivars. A more targeted solution is the reconstruction of transcriptom...
Article
Full-text available
Rice (Oryza sativa) is the main food source for more than 3.5 billion people in the world. Global climate change is having a strong negative effect on rice production. One of the climatic factors impacting rice yield is asymmetric warming, i.e., the stronger increase in nighttime as compared to daytime temperatures. Little is known of the metabolic...
Article
Full-text available
Background: Drought and heat stress effects on rice have been extensively studied, in particular during the sensitive flowering and grain-filling stages. However, in the field these stresses usually occur together because reduced transpirational cooling under drought conditions results in increased plant tissue temperature. In addition, environment...
Article
Drought and heat stress effects on rice have been extensively studied, in particular during the sensitive flowering and grain-filling stages. However, in the field these stresses usually occur together because reduced transpirational cooling under drought conditions results in increased plant tissue temperature. In addition, environmental stresses...
Preprint
Full-text available
In rice, a small increase in nighttime temperatures reduces grain yield and quality. How warm nighttime temperatures (WNT) produce these detrimental effects is not well understood, especially in field conditions where the normal day to night temperature fluctuation exceeds the mild increase in nighttime temperature. We observed genome-wide disrupti...
Article
Full-text available
Background Rice is susceptible to both drought and heat stress, in particular during flowering and grain filling, when both grain yield and quality may be severely compromised. However, under field conditions, these 2 stresses rarely occur separately. Under well-watered conditions, plants avoid heat stress by transpirational cooling, while this is...
Article
Rice is susceptible to both drought and heat stress, in particular during flowering and grain filling, when both grain yield and quality may be severely compromised. However, under field conditions, these two stresses rarely occur separately. Under well-watered conditions, plants avoid heat stress by transpirational cooling, while this is not possi...
Article
Full-text available
RNA-seq analysis has enabled the evaluation of transcriptional changes in many species including nonmodel organisms. However, in most species only a single reference genome is available and RNA-seq reads from highly divergent varieties are typically aligned to this reference. Here, we quantify the impacts of the choice of mapping genome in rice whe...
Article
Combined drought and heat stress is the most common abiotic stress occurring under field conditions that negatively affects rice productivity. Systematic evaluation of the response of rice cultivars to this combined stress under field conditions has not been attempted. To fill this major knowledge gap, three rice cultivars (N22, Dular, Anjali) were...
Article
The failure of panicle exsertion or sheathed panicle (SP) phenotype in rice has been associated with spikelet sterility and grain yield loss under both stress and non-stress conditions. A unique SP phenotype (cv. Sathi) having the potential to maintain normal seed-set and grain weight (exposed to 38oC for 20 d) was identified. Despite the higher sp...
Article
Global climate change leads to increased temperatures and decreased precipitation in many parts of the world. The simultaneous occurrence of high temperature and water deficit results in heat stress damage in plants. Cereals provide the majority of calories for human consumption, making this stress scenario particularly threatening for global food...
Article
Full-text available
Organisms respond to changes in their environment through transcriptional regulatory networks (TRNs). The regulatory hierarchy of these networks can be inferred from expression data. Computational approaches to identify TRNs can be applied in any species where quality RNA can be acquired, However, ChIP-Seq and similar validation methods are challen...
Article
Full-text available
Elucidating the genetic control of rooting behaviour under water-deficit stress is essential to breed climate-robust rice cultivars. Using a diverse panel of 274 indica genotypes grown under control and water-deficit conditions during vegetative growth, we phenotyped 35 traits, mostly related to root morphology and anatomy, involving ~45,000 root s...
Article
Full-text available
Due to global climate change, heat and drought stress have an increasing impact on rice (Oryza sativa L.) yields and become major challenges in agriculture. Severe yield losses were observed when a single stress or a combination of stresses coincide with flowering, but the physiological responses of rice floral organs leading to spikelet sterility...
Article
In rice, pre-exposure to sublethal treatment followed by harsh lethal treatment is known to improve tolerance of different abiotic stresses at the vegetative stage within and across generations. Our major aim was to test the phenomenon of thermo-tolerance at flowering across (trans)-generations and within generation using rice cultivars contrasting...
Article
Rice is one of the main food crops in the world. In the near future, yield is expected to be under pressure due to unfavourable climatic conditions, such as increasing temperatures. Therefore, improving rice germplasm in order to guarantee rice production under harsh environmental conditions is of top priority. Although many physiological studies h...
Article
Heat and drought stress are projected to become major challenges to sustain rice (Oryza sativa L.) yields with global climate change. Both stresses lead to yield losses when they coincide with flowering. A significant knowledge gap exists in the mechanistic understanding of the responses of rice floral organs that determine reproductive success und...
Article
The predicted increase in the frequency and magnitude of extreme heat spikes under future climate can reduce rice yields significantly. Rice sensitivity to high temperatures during the reproductive stage is well documented while the same during the vegetative stage is more speculative. Hence, to identify and characterize novel heat-tolerant donors...
Article
Full-text available
Overview The protocol below is for (i) precise estimation of the impact of heat stress on spikelet fertility in rice and (ii) quantifying the influence of high temperature on the reproductive physiology, i.e. pollination success – pollen shedding and germination on the stigma and estimation of in vivo pollen tube growth in rice.
Article
Full-text available
Vitellogenin (Vtg) is a well-known biomarker for estrogenic pollution. Exposure to xenoestrogens causes altered Vtg levels; hence, it is imperative to have baseline information on normal Vtg expression. The presence of Vtg in Philippine White Mallard and Pekin ducks of different age groups was determined through reverse transcription-polymerase cha...

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