Open Access
ARTICLE
Seung Hee Eom, Tae Kyung Hyun*
Phyton-International Journal of Experimental Botany, DOI:10.32604/phyton.2023.044032
(This article belongs to this Special Issue: Abiotic and Biotic Stress Tolerance in Crop)
Abstract Heat and drought are prominent abiotic stressors that limit crop productivity and yield, particularly concerning
climate change; therefore, understanding the molecular mechanisms underlying plant stress responses is crucial
for stress-tolerant crop production. This study conducted a transcriptomic analysis to elucidate how garlic
(Allium sativum L.) responds to drought and heat stress conditions. Transcriptome libraries were generated to
identify differentially expressed genes (DEGs) induced by drought and heat stresses. Functional classification
and clustering analysis of DEGs revealed stress-specific gene expression patterns. Notably, cell wall-related genes
were implicated in the drought response, whereas heat stress was associated with heat stress transcription factors… More >
Open Access
ARTICLE
Ain Raal1,*, Linda Rusalepp2, Tatiana Chiru3, Nicolae Ciobanu3, Kelly Talvistu1, Michelle Shusta1, Oleh Koshovyi1,4, Tõnu Püssa2
Phyton-International Journal of Experimental Botany, DOI:10.32604/phyton.2023.042723
(This article belongs to this Special Issue: Extraction Techniques, Composition and Bioactivity Research of Plant Extracts)
Abstract The fruits of the Sea buckthorn (Hippophae rhamnoides L.) are a popular plant food and a valuable health product. Cultivating of plants produces a lot of leaves with fine branches as an unnecessary residue, which need valorization. The aim of the study was to estimate (by HPLC-MS/MS) the qualitative and quantitative content of
polyphenolic compounds in different parts of H. rhamnoides (HR), and to determine the level of antioxidant
activity of leaves and fruits (by DPPH, ABTS methods and ferrozine test). Up to 19 compounds were identified
in different parts of HR. The fruits are rich in flavonoids, including various… More >
Open Access
ARTICLE
Yueying Liu#, Yuqing Wang#, Lijiao Gu*
Phyton-International Journal of Experimental Botany, DOI:10.32604/phyton.2023.043306
(This article belongs to this Special Issue: Abiotic and Biotic Stress Tolerance in Crop)
Abstract WRKY transcription factors play important roles in plant growth, development, and stress responses. Our previous research has shown that the GhWRKY91 gene can delay age-, abscisic acid (ABA)-, and drought-induced
leaf senescence when overexpressed in transgenic Arabidopsis plants. To explore in more depth the biological
functions of the GhWRKY91 gene, we further observed the root growth of overexpressing transgenic Arabidopsis thaliana under ABA and drought treatment. In this study, we transplanted the germinated seeds of wild-type
(WT) and three transgenic lines (OE-12, OE-13 and OE-20) to 1/2 MS solid medium containing ABA and different concentrations of mannitol (simulated drought treatment)… More >