Jasmonate is known to inhibit root growth while auxin facilitates root growth. Upon infection with pathogenic bacteria that produce coronatine, we may expect the following in plants: A. Upregulation of […]
Tag: CSIR NET Life Science Previous Year Questions and Solution Plant Hormones
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CSIR NET Life Science Previous Year Questions and Solution Plant Hormones
Constitutive Activation of MKK1 in MAPK Cascade Triggers Abiotic Stress Response Independent of Stimuli
A specific Mitogen Activated Protein Kinase (MAPK) cascade comprising MEKK1(a MAP3K), MKK1 (a MAP2K) and MPK6 (a MAPK) is activated sequentially in that order in Arabidopsis plants upon perceiving certain […]
CSIR NET Life Science Previous Year Questions and Solution Plant Hormones
BKI1: The Key Inhibitor of Brassinosteroid Receptor BRI1 in Plant Growth Regulation
Brassinosteroids are a group of steroid hormones that function in a variety ofcellular and developmental contexts in plants. Which one of the following acts asan inhibitor of the brassinosteroid receptor? […]
CSIR NET Life Science Previous Year Questions and Solution Plant Hormones
Seed Maturation: Storage Accumulation, LEA Proteins, Desiccation, and Hormonal Regulation
Following are certain statements related to seed maturation: A. Seed maturation involves mainly the accumulation of storage products, such as starch, lipids and proteins. B. A large number of chaperones […]
CSIR NET Life Science Previous Year Questions and Solution Plant Hormones
Role of Abscisic Acid (ABA) in Regulating Stress-Responsive Genes and Plant Stress Tolerance
Many factors related to the role of abscisic acid (ABA) in contributing to drought, cold and salt resistance in plants are listed below: A. The transcription factors DREB 1 and […]
CSIR NET Life Science Previous Year Questions and Solution Plant Hormones
Functional Analysis of Arabidopsis Plant Hormone Receptor Mutants
Plant growth hormone receptors, namely TIR1, GID1, COI1 and PYL1 were knocked out independently in Arabidopsis plant. The resultant plants are named as tir1, gid1, coit and pyl1. Which one […]
CSIR NET Life Science Previous Year Questions and Solution Plant Hormones
Function of JAZ Proteins in Jasmonic Acid Signaling
Which one of the following is the correct function of JAZ (JASMONATE ZIM- DOMAIN) protein family, a key regulator of Jasmonic Acid (JA) signalling response? (1) Binds to MYC2 and […]
CSIR NET Life Science Previous Year Questions and Solution Plant Hormones
Key Components and Mechanisms of Ethylene Signaling Pathway in Plants
Ethylene is an important plant hormone that regulates several aspects of plant growth and development. Some statements are given below in relation to ethylene signalling pathways: A. Unbound ethylene receptors […]
CSIR NET Life Science Previous Year Questions and Solution Plant Hormones
Arabidopsis Ethylene Triple Response
Dark grown Arabidopsis seedlings when exposed to ethylene gas shows typical triple response. Following are certain statements regarding the triple response: A. A dominant ethylene receptor mutant will not show […]
CSIR NET Life Science Previous Year Questions and Solution Plant Hormones
Key Characteristics of the Ethylene-Induced Triple Response in Dark-Grown Arabidopsis Seedlings
Dark grown Arabidopsis seedlings show ‘triple response’ when exposed to ethylenehormone. Which one of the following options is characteristic of ‘triple response’? (1) Reduced shoot elongation, increased shoot thickness and […]
