Publications by authors named "Huaijuan Xiao"
Article Synopsis
- - Copper pollution from industrial activities negatively affects plant growth and poses health risks through the food chain by accumulating in plants.! - DCPTA has been shown to help plants cope with copper stress by improving leaf pigment, photosynthesis, root growth, and antioxidant levels, while reducing copper accumulation in cucumber plants.! - Gene analysis indicates that specific genes related to copper metabolism, cell structure, and nitrogen processing are essential in regulating plant response to copper toxicity, suggesting that DCPTA can partially alleviate this stress in cucumbers.!
Article Synopsis
- A plant growth regulator called 5-aminolevulinic acid (ALA) helps pepper seedlings better tolerate saline-alkali stress by improving their photosynthesis and oxidative-reduction responses.
- Research showed that saline-alkali stress negatively impacted the growth and health of pepper plants, leading to lower biomass and photosynthesis, while ALA application counteracted these effects.
- Transcriptomic analysis highlighted that genes linked to photosynthesis, oxidation-reduction, and glutathione metabolism were significantly affected by ALA treatment, indicating its potential as a strategy for improving plant resilience in challenging soil conditions.
Article Synopsis
- Salt and osmotic stress negatively impact the growth of greenhouse horticultural crops, and papain-like cysteine proteases (PLCPs) are involved in plants' multi-stress responses, specifically in pepper plants.
- The study focuses on the role of a specific cysteine protease, CaCP15, in regulating how pepper plants respond to these stresses by silencing and overexpressing this gene.
- Results show that while silencing CaCP15 enhances resistance to salt and osmotic stress, overexpressing it increases sensitivity by reducing antioxidant enzyme activities and negatively affecting stress-related genes.
The nuclear factor Y (NF-Y) transcription factor contains three subfamilies: NF-YA, NF-YB, and NF-YC. The NF-Y family have been reported to be key regulators in plant growth and stress responses. However, little attention has been given to these genes in melon ( L.
View Article and Find Full Text PDF[Effects of sub-low temperature and drought stress on water transport and morphological anatomy of tomato plant].
Ying Yong Sheng Tai Xue Bao
August 2020
We explored the effects of sub-low temperature and drought on water transport in tomato seedlings under normal temperature (25 ℃ day/18 ℃ night) and sub-low temperature (15 ℃ day/8 ℃ night) within the artificial climate chamber, and under normal irrigation (75%-85% field water holding capacity) and drought treatment (55%-65% field water holding capacity). We analyzed the effects of temperature and soil moisture on water transport, stomata and xylem vessel morpholo-gical and anatomical structure of tomato plants. The results showed that compared with condition of normal temperature + normal irrigation, drought treatment significantly reduced leaf water potential, transpiration rate, stomatal conductance, hydraulic conductance, sap flow rate, stomatal length, and diameter of leaf, stem and root conduit, and thus thickened the cell wall and enhanced the anti-embolism ability of conduit in leaf, stem and root.
View Article and Find Full Text PDFTo select the optimum fertilizer application under specific irrigation levels and to provide a reliable fertigation system for tomato plants, an experiment was conducted by using a microporous membrane for water-fertilizer integration under non-pressure gravity. A compound fertilizer (N:P2O5:K2O, 18:7:20) was adopted for topdressing at four levels, 1290 kg/ha, 1140 kg/ha, 990 kg/ha, and 840 kg/ha, and the locally recommended level of 1875 kg/ha was used as the control to explore the effects of different fertilizer application rates on growth, nutrient distribution, quality, yield, and partial factor of productivity (PFP) in tomato. The new regime of microporous membrane water-fertilizer integration under non-pressure gravity irrigation reduced the fertilizer application rate while promoting plant growth in the early and intermediate stages.
View Article and Find Full Text PDFBackground: Pheophorbide a oxygenase (PAO) is an important enzyme in the chlorophyll catabolism pathway and is involved in leaf senescence. It opens the porphyrin macrocycle of pheophorbide a and finally forms the primary fluorescent chlorophyll catabolite. Previous studies have demonstrated the function of PAO during cell death.
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- Plant aquaporins, like CaPIP1-1, facilitate water transport across cell membranes and are crucial for plant responses to environmental stressors.
- CaPIP1-1 was identified from a pepper species, showing a specific genetic structure similar to related plants and high expression in fruit, especially under stress conditions.
- Silencing CaPIP1-1 in pepper plants led to reduced growth and lower tolerance to salt and mannitol stress, indicating its critical role in stress response.
Article Synopsis
- * Overexpression of CaTIP1-1 results in larger stomatal pores, which decreases chilling tolerance but improves growth in salt and mannitol conditions.
- * The gene's expression is strongly induced during salt and mannitol stress, and its silencing leads to reduced tolerance, indicating its crucial role in stress response.
Cysteine proteinases have been known to participate in developmental processes and in response to stress in plants. Our present research reported that a novel CP gene, CaCP, was involved in leaf senescence in pepper (Capsicum annuum L.).
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