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A bar graph is also called a bar chart and consists of bars that are separated from each other. It either uses horizontal or vertical bars to show comparisons among categories. The bars can be rectangles, or they can be rectangular boxes (used in three-dimensional plots). One axis of the graph represents the specific categories being compared, and the other axis shows a discrete value. In this graph, the length of the bar for each category is proportional to the number or percent of individuals...
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As the name suggests, a multiple bar graph is the same as a bar graph but has multiple bars to depict relationships between different data values. One can include as many parameters as possible. However, each parameter must have the same unit of measurement.
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An equation with two variables, typically written in the form y = f(x) or Ax + By = C, describes a relationship between quantities represented by x and y. Each solution to such an equation is an ordered pair (x, y) that satisfies the equation when substituted. These pairs can be represented graphically to understand the variables' relationship visually.A common technique for constructing the graph of a two-variable equation is to create a value table. Begin by choosing several values for the...
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A time-series graph is a line graph with repeated measurements taken at successive intervals of time. It is also called a time series chart. To construct a time-series graph, one must look at both pieces of a paired data set. The horizontal axis is used to plot the time increments, and the vertical axis is used to plot the values of the variable that one is measuring. By using the axes in this way, each point on the graph will correspond to time and a measured quantity. The points on the graph...
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Graphs of functions provide a visual representation of how output values change in response to varying inputs. Each point on the graph corresponds to an ordered pair, where the x-coordinate (independent variable) determines the horizontal position and the y-coordinate (dependent variable) determines the vertical position. Linear functions like y = x give a straight line, indicating a constant rate of change.Nonlinear functions display more complex behaviors. Even power functions generate...
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An ogive graph is sometimes called a cumulative frequency polygon. It is one type of frequency polygon that shows cumulative frequency. In other words, the cumulative percentages are added to the graph from left to right. An ogive graph plots cumulative frequency on the vertical y-axis and class boundaries along the horizontal x-axis. It’s very similar to a histogram; only instead of rectangles, an ogive displays a single point where the top right of the rectangle would be. Creating this...
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Ca <sup>2+</sup> -activated CKL3 phosphorylates nucleoporin 58 to reprogram nuclear transport and execute effector-triggered immunity.

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A Novel Single Animal Motor Function Tracking System Using Simple, Readily Available Software
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The CAT(2) Comes Back.

Musoki Mwimba1, Xinnian Dong1

  • 1Howard Hughes Medical Institute-Gordon and Betty Moore Foundation, Department of Biology, Duke University, Durham, NC 27708, USA.

Cell Host & Microbe
|February 10, 2017
PubMed
Summary

Salicylic acid (SA) binds to CATALASE2, a newly identified SA receptor. This interaction inhibits plant hormone synthesis, enhancing immunity against biotrophic pathogens.

Area of Science:

  • Plant biology
  • Molecular plant pathology
  • Biochemistry

Background:

  • Salicylic acid (SA) is a key plant hormone regulating immunity.
  • The precise molecular receptor for SA has remained elusive.
  • Understanding SA perception is crucial for plant defense mechanisms.

Purpose of the Study:

  • To identify and characterize the molecular receptor for salicylic acid (SA).
  • To elucidate the mechanism by which SA perception leads to enhanced plant immunity.

Main Methods:

  • Genetic analysis to identify the SA receptor.
  • Biochemical assays to confirm SA binding to the receptor.
  • Enzyme activity assays for auxin and jasmonic acid biosynthesis.

Main Results:

Keywords:
auxincatalasecrosstalkjasmonic acidplant immunitysalicylic acid

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  • Genetic and biochemical evidence identifies CATALASE2 as the SA receptor.
  • SA binding to CATALASE2 inhibits enzymes involved in auxin and jasmonic acid biosynthesis.
  • This inhibition strengthens plant defenses against biotrophic pathogens.

Conclusions:

  • CATALASE2 functions as a salicylic acid (SA) receptor.
  • SA-mediated inhibition of hormone biosynthesis is a novel mechanism for plant immunity.
  • This discovery provides new targets for improving crop resistance to pathogens.