Maize pollen germination
WebMar 12, 2024 · Silk is a necessary part of the female reproductive organ in maize. Each maize silk is a specialized long trichome anchored to each ovule, which is functionally equivalent to the stigma and style in typical flowering plants [1,2,3].Silk is responsible for catching pollen grains and supporting pollen hydration and germination. WebMaize Pollen; Pollen Survival; Pollen Storage; These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves. ... Pfahler PL, Linskens HF (1972) In vitro germination and pollen tube growth of maize (Zea mays L.) pollen. VI. Combined effects of storage ...
Maize pollen germination
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WebPollen Germination on and Tube Penetration into Silk—Fresh silks on each wild-type plant were covered with a paper bag after the silks started to emerge. All silks used in one experiment were obtained from the same plant. ... A maize pollen grain does not change its shape upon water uptake to initiate germination, unlike the pollen grains of ... WebDec 13, 2011 · However, as the sera of only 2 of the 5 maize pollen-allergic workers were positive to group 5 allergens which cause positive reactions in more than 90% of grass …
WebJan 1, 2003 · Once germination occurs, pollen tubes must enter the style. In dry stigma types the adhesion of the pollen grain to a stigmatic papilla determines the point of entry of the pollen tube into the transmitting tract of the style. ... PEX glycoproteins are found in the pollen walls of maize and tomato and they also have conserved LRRs (Stratford et ... WebPollen germination and pollen tube growth in pepper were greatly reduced when plants were grown at 38 °C for 8 h (Kafizadeh et al. 2008). Maize pollen lost its fertilisation abilities when the isolated pollen was submitted to heat shock for 4 h (Dupuis & Dumas 1990).
WebJan 3, 2016 · Pollen Germination Pollen germination and pollen tube growth in ZP maize lines January 2016 Authors: Radosav Cerović University of Belgrade Zorica Pajić Maize Research Institute, Zemun... WebApr 12, 2024 · We selected different heat-sensitive maize varieties: heat-tolerant variety Zhengdan 958 (ZD958) and heat-sensitive variety Xianyu335 (XY335) to study the stress effects of high temperature on the development of tassel in the key stage of its differentiation (the 12-leaf stage, V12). ... activity and germination rate of pollen.
WebAtGRXS17-expressing maize pollen is less sensitive to heat stress than WT pollen. (a) Representative image of pollen grains and germination tubes from non-stressed plants of all genotypes. Pollen was collected from plants before heat treatment was initialized. Red arrows indicate a pollen germination tube and the corresponding pollen grain.
WebEven in the germination of maize pollen, the effects were different: salicylic and 3-HO benzoic acids reduced the germination of maize pollen grains less markedly than coumaric and ferulic acids. These results, obtained in vitro and with single pure PAs, only suggest that PAs in unconjugated form could be among the compounds in wheatgrass ... steph dickinsonWebJan 22, 2024 · Maize seeds were germinated in 0.25 L pots at 22/20°C (day/night) and 13 h light. After 3 weeks, plantlets were transferred to 20 L pots and developed under optimum conditions (regular watering and fertilization) at 25/20°C (day/night) and 16 h light. pioneer american ins. phone numberWebMay 29, 2024 · Although CPK genes have been identified in maize, and some have been functionally characterized, the molecular function of ZmCPKs associated with pollen tube development remains less well studied. Here, we report that a pollen-specific CPK, ZmCPK32, is involved in the regulation of pollen germination and tube extension. pioneer american insurance company numberWeb151-200. 201-300. 301-500. Fine Particulate Matter PM2.5*. Is an air pollutant that is a concern for people's health when levels are high. PM2.5 are tiny particles in the air which … steph davis rock climberWebDec 1, 2024 · Maize pollen tubes can penetrate through over 30 cm of maize silk (stigmata) and reach ovules within 24 h, indicating growth speeds in excess of 1 cm/h [23]. By contrast, dicot pollen can take over 1 h to hydrate, and arabidopsis pollen … pioneer american insurance company scamWebDec 1, 2024 · During pollen germination, starch degradation occurs very quickly after water imbibition. Glucose (Glu) and maltose (Mal) produced from starch degradation must be phosphorylated to be used for energy generation and building blocks for intine formation, pollen germination and tube growth. The roles of the cloned sugar metabolic GMS … pioneer american insurance company waco txWebApr 13, 2024 · Search, browse and select cities on our interactive allergy map to see allergy levels and pollen count forecasts. Advertisement. Introducing Respiray Wear A+, the … pioneer american insurance life