Chevalier de Lamarck

Different organisms originated separately by spontaneous generation from nonliving matter.

We now see a hierarchy of species because they differ in age

Species differ from one another because they have different needs.

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#Id: 9520

#Unit 6. System Physiology – Plant

The chorismate mutase Cmu1 secreted by U. maydis to reduce the accumulation of salicylic acids and therefore reduce the intensity of the defense response at the site of infection

TLS Online TPP Program

#Id: 9521

#Unit 6. System Physiology – Plant

The nematode‐secreted peptide 16D10, which was first isolated from the soybean root‐knot nematode Meloidogyne incognita, interacts with a plant regulatory protein, stimulates root growth, and binds in planta to two SCARECROW‐like transcription factors.

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#Id: 9522

#Unit 6. System Physiology – Plant

The bacterial blight pathogen of rice (Oryza sativa), Xanthomonas oryzae pv. oryzae, secretes a highly conserved sulfated peptide called Ax21, which mediates quorum sensing by controlling Xanthomonas motility, biofilm formation, and virulence.

TLS Online TPP Program

#Id: 9523

#Unit 6. System Physiology – Plant

Three major types of insect herbivores

Phloem feeders, such as aphids and whiteflies, cause little damage to the epidermis and mesophyll cells. Phloem feeders insert their narrow stylet, which is an elongated mouthpart, into the phloem sieve tubes of leaves and stems. 

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#Id: 9524

#Unit 6. System Physiology – Plant

The amount of direct injury to the plant is low, when these insects serve as vectors for plant viruses they can cause great damage.

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#Id: 9525

#Unit 6. System Physiology – Plant

Cell-content feeders, such as mites and thrips, are piercing-and-sucking insects that cause an intermediate amount of physical damage to plant cells.